Change search
Refine search result
3456789 251 - 300 of 2336
CiteExportLink to result list
Permanent link
Cite
Citation style
  • apa
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf
Rows per page
  • 5
  • 10
  • 20
  • 50
  • 100
  • 250
Sort
  • Standard (Relevance)
  • Author A-Ö
  • Author Ö-A
  • Title A-Ö
  • Title Ö-A
  • Publication type A-Ö
  • Publication type Ö-A
  • Issued (Oldest first)
  • Issued (Newest first)
  • Created (Oldest first)
  • Created (Newest first)
  • Last updated (Oldest first)
  • Last updated (Newest first)
  • Disputation date (earliest first)
  • Disputation date (latest first)
  • Standard (Relevance)
  • Author A-Ö
  • Author Ö-A
  • Title A-Ö
  • Title Ö-A
  • Publication type A-Ö
  • Publication type Ö-A
  • Issued (Oldest first)
  • Issued (Newest first)
  • Created (Oldest first)
  • Created (Newest first)
  • Last updated (Oldest first)
  • Last updated (Newest first)
  • Disputation date (earliest first)
  • Disputation date (latest first)
Select
The maximal number of hits you can export is 250. When you want to export more records please use the Create feeds function.
  • 251.
    Ansal, A.
    et al.
    Kandilli Observatory and Earthquake Research Institute, Bogazici University, Istanbul.
    Erdik, M.
    Kandilli Observatory and Earthquake Research Institute, Bogazici University, Istanbul.
    Studer, J.
    Studer Engineering, Zurich.
    Springman, Sarah M.
    Institute for Geotechnical Engineering, Swiss Federal Institute of Technology, Zurich.
    Laue, Jan
    Luleå University of Technology, Department of Civil, Environmental and Natural Resources Engineering, Mining and Geotechnical Engineering. Institute for Geotechnical Engineering, Swiss Federal Institute of Technology, Zurich.
    Buchheister, J.
    Institute for Geotechnical Engineering, Swiss Federal Institute of Technology, Zurich.
    Giardini, D.
    Institute of Geophysics, Swiss Federal Institute of Technology, Zurich.
    Fäh, D.
    Institute of Geophysics, Swiss Federal Institute of Technology, Zurich.
    Köksal, D.
    World Institute for Disaster Risk Management- DRM, Virginia.
    Seismic microzonation for earthquake risk mitigation in turkey2004Conference paper (Refereed)
    Abstract [en]

    As a tool to improve the state of land use management in Turkey and to better mitigate earthquake risk inthe future, a microzonation project was initiated after the 1999 Kocaeli earthquake. The project had twocomponents (a) drafting a microzonation manual [1], (b) conducting pilot case studies in the selected tworegions affected by the 1999 Marmara earthquakes [2]. The main purpose of the study was to test anddemonstrate the applicability of the methodology proposed in the Seismic Microzonation Manual preparedfor the project. The major contributions of the study are the probabilistic assessment of the regionalearthquake hazard, interpretation of the microtremor records, and interpretation of the available geologicaland geotechnical data based on a grid approach. All the available data was transformed to GIS format andthe results are evaluated to obtain a microzonation with respect to site amplification, liquefactionsusceptibility and landslide hazard. An attempt will be made to summarize the results of the pilot studyconducted for the Gölcük region to give an overview of the proposed methodology.

  • 252.
    Ansal, A.
    et al.
    Kandilli Observatory and Earthquake Research Institute, Bogazici University, Istanbul.
    Laue, Jan
    Institute for Geotechnical Engineering, Eidgenossische Technische Hochschule Zurich.
    Buchheister, J.
    ETH Zurich.
    Erdik, M.
    Kandilli Observatory and Earthquake Research Institute, Bogazici University, Istanbul.
    Springman, Sarah M.
    Institute for Geotechnical Engineering, Eidgenossische Technische Hochschule Zurich.
    Studer, J.
    Studer Engineering, Zurich.
    Köksal, D.
    World Institute for Disaster Risk Management- DRM, Virginia.
    Site Characterization and Site Amplification for a Seismic Microzonation Study in Turkey2004Conference paper (Refereed)
    Abstract [en]

    The pilot areas were divided into cells by a grid system of 500 m x 500 m for estimating the effects of site conditions at a scale of 1:5000 by assigning representative soil profiles at the centre of each grid. These soil profiles were classified according to the Turkish Earthquake Code, NEHRP site classification, equivalent shear wave velocity and used for site response analyses. The zonation maps involve the division of the area into three zones as (A, B, and C). In all cases, the variations of the calculated parameters are considered separately and their frequency distributions were determined. Thus the zone A shows the most unsuitable 33 percentile, zone B the medium 34 percentile and zone C shows the most favorable 33 percentile. A suitable pa-rameter is considered to be the average spectral acceleration between 0.5-1.5 sec periods obtained from site response analysis. Even though more empirical, the spectral amplifi-cations calculated using equivalent shear wave velocities gave consistent values that appear to be realistic when compared with the selected soil profiles. Thus microzonation maps with respect to ground shaking were based on the average of spectral accelerations and spectral amplifications obtained from equivalent shear wave velocities.

  • 253. Arm, M
    Mechanical properties of residues as unbound road materials - experimental tests on MSWI bottom ash, crushed concrete and blast furnace slag. Diss2003Report (Other academic)
    Abstract [en]

    The study has concentrated on residues in unbound road layers. The materials selected were processed municipal solid waste incinerator (MSWI) bottom ash, crushed concrete and air-cooled blast furnace slag (AcBFS). The deformation on loading the possible strength development over time and the resistance to mechanical and climatic action were studied in the laboratory and in the field The results were compared with those of the conventional aggregates they could possibly replace, such as sand, gravel and crushed rock. The methods used in the laboratory were cyclic load triaxial tests, Los Angeles tests, micro-Deval tests and freeze-thaw tests. In the field, test sections with residues and reference sections with conventional aggregates in the unbound layers were monitored by means of falling weight deflectometer (FWD) measurements.

  • 254. Arm, M
    Slaggrus i väg- och anläggningsarbeten. Handbok2006Report (Other academic)
    Abstract [sv]

    (1) Projekteringsförutsättningar; (2) Redovisning i bygghandling; (3) Utförande; (4) Drift och underhåll; (5) Återbruk, deponering och överlåtelse; (6) Kvalitetskrav och kontroll; Bilagor: (1) Törringevägen - förstärkningslager i gata; (2) Malmö - förstärkningslager i parkeringsplatser; (3) Malmö - fyllning och rörgravstäckning; (4) Umeå - förstärkningslager i transportväg på deponi; (5) Uppsala - förstärkningslager i transport på deponi

  • 255. Arm, M
    et al.
    Arvidsson, H
    Höbeda, P
    Inverkan av glimmer på ett obundet vägmaterials deformationsegenskaper. Resultat från laboratorieförsök2004Report (Other academic)
  • 256. Arm, M
    et al.
    Lindeberg, J
    Helgesson, H
    Sammanställning av material och användningsområden. Underlag i Naturvårdsverkets regeringsuppdrag 'Återvinning av avfall i anläggningsarbeten'2007Report (Other academic)
    Abstract [sv]

    (1) Informationskällor; (2) Avgränsning och definitioner; (3) Resultat - inventerade mängder och användning; Bilagor: (1) Myndighetskontakter, uppgifter om material och användning; (2) Diskussion kring risker vid olika användning

  • 257. Arm, M
    et al.
    Rihm, T
    Fejes, J
    Lagerkvist, A
    Effekter av samhällets säkerhetsarbete (ESS). Beskrivning och analys av samhällets förebyggande och skadebegränsande säkerhetsåtgärder inom deponering samt kemikaliehantering utanför deponier2012Report (Other academic)
    Abstract [sv]

    (1) Begrepp och definitioner; (2) Metodik för projektarbetet; (3) Lagstiftning och regelverk; (4) Kemikaliehantering utanför deponier; (5) Deponering; (6) Identifierande brister och goda exempel / Vad kan vi lära?; (7) Kostnad-nytta bedömning; (8) Fortsatt arbete inom projektet; Bilaga: (1) Enkät om olyckor på deponier

  • 258. Arm, M
    et al.
    Tiberg, C
    Bottenaskor från kol-, torv- och biobränsleeldning i väg- och anläggningsarbeten. Handbok2010Report (Other academic)
    Abstract [sv]

    (1) Projekteringsförutsättningar; (2) Redovisning i bygghandling; (3) Utförande; (4) Drift och underhåll; (5) Återbruk, deponering och överlåtelse; (6) Kvalitetskrav och kontroll; Bilagor: Exempel på utförda objekt: (1) Hudiksvall – bio / RT-rosteraska, botten- och flygaska i transportväg på deponi; (2) Norrtälje – biorosteraska, botten- och flygaska i skogsbilväg

  • 259. Arm, Maria
    et al.
    Göransson, Gunnel
    Helgesson, Helena
    Kiilsgaard, Ramona
    Zetterlund, Miriam
    Hållbar samhällsplanering med Backcasting-SAMLA. En metodbeskrivning2019Report (Other academic)
    Abstract [sv]

    Backcasting-SAMLA är en systematisk metod för att bedöma åtgärder och planera stra-tegiskt för en hållbar utveckling. Metoden är utvecklad ur de två delarna Backcasting – en metod som kan användas för strategisk planering för en hållbar utveckling och SAMLA – ett verktyg för multikriterieanalys med hållbarhetsbedömning. Backcasting-SAMLA ger stöd för beslut om hållbara och genomförbara åtgärder vid exploateringen och ändrad markanvändning. Metoden är lämplig för komplexa frågeställningar med relativt långt tidsperspektiv och passar bra att använda vid exempelvis detaljplanearbetet, när det finns en aktuell översiktsplan. Denna beskrivning är framtagen inom forskningsprojektet Land Plan – Metoder som integrerar hållbarhet i kommunal planering. Den vänder sig främst till tjänstemän inom kommunen och resultatet blir mest värdefullt om många olika fackområden involveras. Förutom specialister inom fysisk planering behövs företrädare för frågor om miljö, natur, kultur, näringsliv och sociala aspekter m.m., liksom politiker. Den övergripande ambitionen i projektet Land Plan har varit att utveckla robusta metoder för att stödja hållbarhetsbedömningar med hänsyn till markanvändning, det vill säga med hänsyn till markens geotekniska förhållanden, föroreningsinnehåll, känslighet för effekter av klimatförändring (översvämning) och hållbar resurshantering. Dessa metoder ska även bidra till att göra beslutsprocessen mer transparent. Förutom Backcasting-SAMLA har GIS- verktyget Geokalkyl1 testats och vidareutvecklats inom projektet.

  • 260.
    Arm, Maria
    et al.
    Swedish Geotechnical Institute.
    Wik, Ola
    Swedish Geotechnical Institute.
    Engelsen, CJ
    Erlandsson, M
    Sundqvist, JO
    Oberender, AN
    Hjelmar, O
    Wahlström, M
    Evaluation of the European recovery target for construction and demolition waste2015In: WASCON 2015 - Resource Efficiency in Construction, 9th International Conference on the Environmental and Technical Implications of Construction with Alternative Materials, Santander, Spain, 10-12 June, 2015. Book of extended abstracts, Santander: ISCOWA , 2015, p. 31-38Conference paper (Refereed)
    Abstract [en]

    The revised EU Waste Framework Directive (WFD) includes a 70 % target for recovery of construction and demolition waste (excl. energy recovery), which will be evaluated by the commission in a near future. In order to provide some of the basis for this evaluation, the Swedish Environmental Protection Agency launched a Nordic project, ENCORT-CDW, which was reported in 2014. The project aimed to study the potential change in the resource management of the main C&D waste fractions as a consequence of fulfilling the WFD target. Recovery scenarios were identified and estimations were made regarding expected savings of primary materials, impact on transports, and pollution and emissions. For wood waste, the main differences between re-use, material recycling and energy recovery were evaluated in a screening LCA. The main conclusions were that the EU recovery target does not ensure the most efficient and sustainable waste recovery in its present form: Interpretations of waste and recovery definitions affect the monitoring; The general weight-based target has to be altered to favour not only the recycling of heavyweight materials but materials where recycling implies large environmental benefits; High grade recycling should be distinguished and prioritized to ensure safe recovery. This requires improved knowledge on waste generation and handling as well as on emissions of dangerous substances.

  • 261.
    Arnold, André
    et al.
    Eidgenossische Technische Hochschule Zurich.
    Laue, Jan
    Eidgenossische Technische Hochschule Zurich.
    Influence of unloaded walls on the stress distribution under a raft foundation2009In: Proceedings of the 17th International Conference on Soil Mechanics and Geotechnical Engineering: The Academia and Practice of Geotechnical Engineering, 2009, Vol. 2, p. 1124-1127Conference paper (Refereed)
    Abstract [en]

    For the calculation of flexible rafts, the rising structure is often not taken into account on the design with the exception of the load transfer location. Mostly, a uniform stress distribution is assumed below a footing, even though this is only valid if the footing is totally flexible and is able to follow the movement of the soil at every point. The assumption of flexibility is dependent on load and stiffness of the footing while already both, the flexible raft made of concrete as well as the structure itself are influencing the stiffness of a raft. Local stiffening of the foundation, e.g. by locally increased thickness of the raft or flexural rigid connected walls, is not taken into account in the design approach. In this contribution centrifuge model tests are carried out for different raft systems to explore the development of the stress distribution under a flexible raft foundation. Focus is given to identify the influence of the stiffening effects of outside walls for structures mostly loaded via middle columns. © 2009 IOS Press.

  • 262.
    Arnold, André
    et al.
    Institute for Geotechnical Engineering, ETH Zurich.
    Laue, Jan
    Institute for Geotechnical Engineering, ETH Zürich.
    Loading behaviour of flexible reaft foundations in ull scale tests and centrifuge models2013In: / [ed] Delage et al, 2013, p. 879-882Conference paper (Refereed)
  • 263.
    Arnold, André
    et al.
    Institute for Geotechnical Engineering, ETH Zurich.
    Laue, Jan
    Institute for Geotechnical Engineering, ETH Zurich.
    Physical modelling and full scale measurements on soil-structure interaction of flexible raft foundations2010Conference paper (Refereed)
  • 264.
    Arnold, André
    et al.
    Institute for Geotechnical Engineering, ETH Zurich.
    Laue, Jan
    Luleå University of Technology, Department of Civil, Environmental and Natural Resources Engineering, Mining and Geotechnical Engineering. Institute for Geotechnical Engineering, ETH Zurich.
    Espinosa, T.
    Institute for Geotechnical Engineering, ETH Zurich.
    Springman, Sarah M.
    Institute for Geotechnical Engineering, ETH Zurich.
    Centrifuge modelling of the behaviour of flexible raft foundations on clay and sand2010In: Physical Modelling in Geotechnics: Proceedings of the 7th International Conference on Physical Modelling in Geotechnics 2010, ICPMG 2010, 2010, Vol. 1, p. 679-684Conference paper (Refereed)
    Abstract [en]

    In recent decades, foundations used for housing constructions changed from strip foundations to flexible rafts including the whole ground floor. Strip foundations were usually calculated with the assumption of an even stress distribution, and this is often applied to modern flexible raft foundations. The result of these calculations does not represent reality and may often lead to inappropriate design and unexpected structural damage. Physical model tests have been carried out to study the stress distribution on different foundation types on a variety of soils, and under various loading scenarios. A better understanding of the stress distribution between foundation and soil is possible due to normal stress measurements at the interface. For working loads, a clear difference in stress transfer between foundation and clay and sand soils could be observed while a change in depth of soil or shallow inclined bedrock has less effect on the stress distribution at the interface. © 2010 Taylor & Francis Group, London.

  • 265.
    Ask, Per
    et al.
    Linköping University, Department of Biomedical Engineering, Physiological Measurements. Linköping University, The Institute of Technology.
    Levitan, H
    Robinson, P J
    Rapoport, S I
    Peripheral nerve as an osmometer: role of the perineurium in frog sciatic nerve.1983In: American Journal of Physiology, ISSN 0002-9513, E-ISSN 2163-5773, Vol. 244, no 1, p. C75-81Article in journal (Refereed)
    Abstract [en]

    Measurements of volume and hydrostatic pressure in the frog sciatic nerve in vitro demonstrate that the nerve acts as an osmometer, in large part because the perineurium is a semipermeable membrane for water flow. Endoneurial hydrostatic pressure in nerves in isotonic Ringer exceeds bath pressure by about 7 mmHg. In Ringer made hypertonic by addition of sucrose, nerve volume and endoneurial pressure fall linearly in relation to 1/osmolality. The slope of the plot of pressure against volume provides a value for nerve compliance equal to 0.006 mm2/mmHg. Calculations based on the model of the nerve as an osmometer indicate that the nerve has an osmotically "inactive" volume equal to 0.19 mm3/mm, which is about 75% of the total volume of a nerve segment of unit length in normal Ringer. Perineurial hydraulic conductivity (Lp) equals 7.5 x 10(-13) cm3.s-1.dyn-1, a value characteristic of nonleaky epithelia. The perineurium is an elastic tissue with a constant modulus of elasticity equal to 3 x 10(6) dyn/cm2 when not markedly stretched and may limit nerve swelling under pathological conditions of nerve edema.

  • 266.
    Askarinejad, Amin
    et al.
    Institute for Geotechnical Engineering, Swiss Federal Institute of Technology, ETH Zurich.
    Laue, Jan
    Luleå University of Technology, Department of Civil, Environmental and Natural Resources Engineering, Mining and Geotechnical Engineering. Institute for Geotechnical Engineering, Swiss Federal Institute of Technology, ETH Zurich.
    Springman, Sarah M.
    Institute for Geotechnical Engineering, Swiss Federal Institute of Technology, ETH Zurich.
    Effect of bedrock shape and drainage properties on the stability of slopes2014In: Physical Modelling in Geotechnics - Proceedings of the 8th International Conference on Physical Modelling in Geotechnics 2014, ICPMG 2014, 2014, Vol. 2, p. 1211-1217Conference paper (Refereed)
    Abstract [en]

    Rainfall induced slope failures were investigated in a series of centrifuge tests on slopes underlain by different bedrock profiles. These tests were designed to interpret observations made during two full scale landslide triggering experiments, focusing on the effect of hydro-mechanical interactions between a soil layer and bedrock during rainfall events. A climate chamber was designed and constructed for the ETH Zurich geotechnical drum centrifuge (Springman et al. 2001). Two different bedrock profiles were tested. The bedrock was parallel to the slope surface as the benchmark, whereas a convex form was placed at the toe of the slope in the alternative, which has potential to act as a supporting buttress. The changes in the pore pressures at the interface of the soil and bedrock were measured. Moreover, the surface movements were monitored by means of cameras installed in the climate chamber. The hydraulic and mechanical responses of the slopes suggested that a convex form of bedrock at the toe might have a "buttressing" effect to the upper parts of the slope due to arching. Moreover, this stabilising effect would be more pronounced if an efficient drainage system was in place behind the buttress to drain locally high pore pressures. © 2014 Taylor & Francis Group.

  • 267.
    Askarinejad, Amin
    et al.
    Institute for Geotechnical Engineering, ETH Zürich.
    Laue, Jan
    Institute for Geotechnical Engineering, ETH Zurich.
    Zweidler, Adrian
    Institute for Geotechnical Engineering, Eidgenossische Technische Hochschule Zurich.
    Iten, M.
    Institute for Geotechnical Engineering, ETH Zurich.
    Bleiker, E.
    Institute for Geotechnical Engineering, ETH Zurich.
    Buschor, H.
    Institute for Geotechnical Engineering, ETH Zurich.
    Springman, Sarah M.
    Institute for Geotechnical Engineering, ETH Zurich.
    Physical modelling of rainfall induced landslides undercontrolled climatic conditions2012Conference paper (Refereed)
    Abstract [en]

    A series of small scale physical modelling tests are performed in a geotechnical drumcentrifuge in order to investigate the triggering mechanisms of landslides due to rainfall. They areconducted under controlled conditions of rainfall intensity and duration, ambient relative humidity, wind,and temperature. These tests have been designed to study the possible failure mechanisms proposed for afull scale landslide experiment. Accordingly, different shapes and hydraulic properties of the bedrock, interms of drainage and exfiltration, are provided for the model. A three dimensional close rangephotogrammetric technique is used to track the movements and monitor the volumetric changes of theground during the cycles of wetting and drying. The slope elevation is filmed during and following therainfall events using a high speed camera and the deformation vectors and strains are elaborated using thePIV method. Details of the design of the climate chamber are discussed in this paper.

  • 268.
    Asplind, Moa
    KTH, School of Architecture and the Built Environment (ABE), Civil and Architectural Engineering, Soil and Rock Mechanics.
    Pore water pressure and settlements generated from water driven DTH-drilling: - A field study2017Independent thesis Advanced level (degree of Master (Two Years)), 300 HE creditsStudent thesis
    Abstract [en]

    Foundation work can cause damage to adjacent buildings and infrastructure. Drilling is performed in sensitive areas in urban projects and where the ground conditions are difficult. It is important to be aware of the installation effects from drilling. Pneumatic drilling is commonly used in production but hydraulic drilling is advised in sensitive areas. Hydraulic drilling is believed to cause less disturbance in the ground, although there are no available field studies regarding the installation effects induced by water driven drilling.By measuring the pore water pressure and the settlements during the installation of a RD-pile wall the magnitude and extent of the installation effects induced by water powered DTH drilling is investigated in fill material and esker material. The results indicate settlements close to the installed piles in both materials, larger in the esker material. The pore pressure shows both increases and decreases in the esker material, the decreases implies the Venturi effect is present in water driven drilling. The pore water pressure changes are larger at the measurement point furthest away from drilling in the fill material but the settlements are the smallest there. The largest increases of the pore pressure are seen when the hammer flushes water out into the formation and not during drilling.

  • 269.
    Auchar, Muhammad
    et al.
    Luleå University of Technology, Department of Civil, Environmental and Natural Resources Engineering, Mining and Geotechnical Engineering.
    Mattsson, Hans
    Luleå University of Technology, Department of Civil, Environmental and Natural Resources Engineering, Mining and Geotechnical Engineering.
    Knutsson, Sven
    Luleå University of Technology, Department of Civil, Environmental and Natural Resources Engineering, Mining and Geotechnical Engineering.
    Numerical modelling for stability of tailings dams2013Conference paper (Other academic)
    Abstract [en]

    A tailings dam is a large embankment structure that is constructed to store the waste from the mining industry. Stability problems may occur in a tailings dam due to factors such as quick rate of raising, internal erosion and liquefaction. The failure of a tailings dam may cause loss of human life and environmental degradation. Tailings Dams must not only be stable during the time the tailings storage facility is in operation, but also long time after the mine is closed. In Sweden, the licensing authorities demand that the tailings dams should be stable up to the next glaciation age, which is interpreted to be 1000 years or more. This goal requires extensive knowledge in order to be able to design the tailings dams so that they can be stable for such a long time. At the Division of Mining and Geotechnical Engineering at Luleå University of Technology, research has been conducted on the stability of tailings dams, using the finite element method which is considered to be suitable for modelling the complex geometry and the material properties of tailings dams. A case study is presented which describes the application of the finite element method in evaluating the stability of a tailings dam.

  • 270.
    Auchar Zardari, Muhammad
    et al.
    Quaid-e-Awam University of Engineering Science and Technology: Nawabshah, Pakistan.
    Mattsson, Hans
    Luleå University of Technology, Department of Civil, Environmental and Natural Resources Engineering, Mining and Geotechnical Engineering.
    Knutsson, Sven
    Luleå University of Technology, Department of Civil, Environmental and Natural Resources Engineering, Mining and Geotechnical Engineering.
    Khalid, Muhammad S.
    Department of Urban Management, Kyoto University, Kyoto, Japan.
    Ask, Maria
    Luleå University of Technology, Department of Civil, Environmental and Natural Resources Engineering, Geosciences and Environmental Engineering.
    Lund, Björn
    Department of Earth Sciences, Uppsala University, Uppsala, Sweden.
    Numerical Analyses of Earthquake Induced Liquefaction and Deformation Behaviour of an Upstream Tailings Dam2017In: Advances in Materials Science and Engineering, ISSN 1687-8434, E-ISSN 1687-8442, Vol. 2017, article id 5389308Article in journal (Refereed)
    Abstract [en]

    Much of the seismic activity of northern Sweden consists of micro-earthquakes occurring near postglacial faults. However, larger magnitude earthquakes do occur in Sweden, and earthquake statistics indicate that a magnitude 5 event is likely to occur once every century. This paper presents dynamic analyses of the effects of larger earthquakes on an upstream tailings dam at the Aitik copper mine in northern Sweden. The analyses were performed to evaluate the potential for liquefaction and to assess stability of the dam under two specific earthquakes: a commonly occurring magnitude 3.6 event and a more extreme earthquake of magnitude 5.8. The dynamic analyses were carried out with the finite element program PLAXIS using a recently implemented constitutive model called UBCSAND. The results indicate that the magnitude 5.8 earthquake would likely induce liquefaction in a limited zone located below the ground surface near the embankment dikes. It is interpreted that stability of the dam may not be affected due to the limited extent of the liquefied zone. Both types of earthquakes are predicted to induce tolerable magnitudes of displacements. The results of the postseismic slope stability analysis, performed for a state after a seismic event, suggest that the dam is stable during both the earthquakes

  • 271.
    Axelsson, Kennet
    Luleå tekniska universitet.
    Anisotropic work hardening: experiments, theories and finite element application1976Report (Other academic)
  • 272.
    Axelsson, Kennet
    Luleå tekniska universitet.
    Constitutive properties and modelling of silty soils1989In: Proceedings of the twelfth International Conference on Soil Mechanics and Foundation Engineering = Comptes Rendus du Douzième Congrès International de mécanique des Sols et des Travaux de Fondations / Vol. 1, Rotterdam: Balkema Publishers, A.A. / Taylor & Francis The Netherlands , 1989, p. 687-690Conference paper (Refereed)
    Abstract [en]

    brief description of the characteristics of silty soils is presented. Results are given from undrained triaxial tests on Swedish silts, which show contractant behaviour at small strains whereas the behaviour becomes dilatant close to the critical state. The undrained effective stress path then changes direction at the critical state line which will be followed while the shear strain increases. A simple constitutive model was adopted to predict the transitional behaviour. The model, which is based on the Cam-Clay concept, includes shear hardening in addition to volumetric hardening. Comparisons of predicted and experimental results in the undrained case show a very good agreement, in particular with respect to the transitional behaviour represented by a ``hook'' in the effective stress path.

  • 273.
    Axelsson, Kennet
    Luleå tekniska universitet.
    Kallortsteknikforskning i geoteknik vid University of Alberta och National Research Council of Canada: intryck från studiebesök i januari 19871987Report (Other academic)
  • 274.
    Axelsson, Kennet
    et al.
    Luleå tekniska universitet.
    Knutsson, Sven
    Luleå University of Technology, Department of Civil, Environmental and Natural Resources Engineering, Mining and Geotechnical Engineering.
    Nyström, B.
    Luleå tekniska universitet.
    Sheng, Daichao
    Luleå tekniska universitet.
    On a finite element model for freezing and thawing soil1989In: Poac 89: 10th International Conference on Port and Ocean Engineering under Artic Conditions, Luleå, Sweden, 12-16 June 1989 / [ed] Lennart Å. Fransson; Kennet B. Axelsson, Luleå: Högskolan i Luleå , 1989, Vol. 1, p. 342-353Conference paper (Refereed)
  • 275.
    Axelsson, Kennet
    et al.
    Professor emeritus i byggnadskonstruktion vid Uppsala universitet.
    Mattsson, Hans
    Luleå University of Technology, Department of Civil, Environmental and Natural Resources Engineering, Mining and Geotechnical Engineering.
    Geoteknik2016Book (Refereed)
    Abstract [sv]

    Geoteknik behandlar jordmaterials mekaniska och tekniska egenskaper, kunskaper som är av betydelse för utförandet av en säker och stabil grundläggning av byggnader och anläggningar. Ämnet stödjer sig på kvartärgeologin, d.v.s. de lösa jordarternas geologi, samt på mekaniken och främst då deformerbara fasta kroppars mekanik. Geoteknik är ett semiempiriskt ämne, d.v.s. provning och erfarenhet ligger också till grund för de metoder som tillämpas.Boken är uppdelad i fyra huvuddelar. I del A ges en introduktion till ämnet samt en återblick på byggnadsgeologin (kvartärgeologin). I del B behandlas jordmaterialläran, d.v.s. jords kemiska och fysikaliska egenskaper vad gäller beståndsdelar, klassificering och strukturell uppbyggnad. Del C behandlar jordmekaniken, d.v.s. mekaniska och hållfasthetstekniska egenskaper hos jord. I del D tillämpas de inhämtade kunskaperna på viktiga geotekniska problemområden såsom bestämning av spännings­tillstånd i jordprofiler, beräkning av byggnaders och anläggningars sättning och geotekniska bärförmåga samt bestämning av jordtryck mot stödkonstruktioner och av jordslänters stabilitet.Geoteknik vänder sig i första hand till studenter på de tekniska hög­s­kolornas program för väg- och vattenbyggnad och samhällsbyggnad samt på högskolornas byggingenjörsprogram.

  • 276.
    Axelsson, Kennet
    et al.
    Luleå tekniska universitet.
    Runesson, K.
    Chalmers University of Technology.
    Sture, S.
    University of Colorado, Boulder.
    Yu, Y,
    Luleå tekniska universitet.
    Alawji, H.
    University of Colorado, Boulder.
    Characteristics and integration of undrained response of silty soils1989In: Numerical models in geomechanics: [the proceedings of the 3rd International Symposium on Numerical Models in Geomechanics held on 8 - 11 May 1989, Niagara Falls, Canada / [ed] S. Pietruszczak; Gyanendra Nath Pande, London: Elsevier, 1989, p. 195-203Conference paper (Refereed)
    Abstract [en]

    Constitutive behaviour of silt is discussed with emphasis on undrained response. Triaxial undrained tests performed on silt shows contractant behaviour at small strains but dilatant behaviour at higher strains, whereafter the soil fails. A constitutive model for silt based on elastoplacticity is proposed and numerically investigated

  • 277.
    Axelsson, Kennet
    et al.
    Luleå tekniska universitet.
    Rydén, C-G
    Luleå tekniska universitet.
    Experimental determination of pore pressure development in a thawing soil: contribution to the 9th International Conference on Port and Ocean Engineering under Artic Conditions - POAC 871987Report (Other academic)
  • 278.
    Axelsson, Kennet
    et al.
    Luleå tekniska universitet.
    Yu, Yao
    Luleå tekniska universitet.
    Johansson, L.
    Finite element analysis of an excavated slope1992In: Landslides: proceedings of the international symposium / 10-14 February 1992 / Christchurh / [ed] David H. Bell, Rotterdam: Balkema Publishers, A.A. / Taylor & Francis The Netherlands , 1992, Vol. 6, p. 295-300Conference paper (Refereed)
  • 279.
    Axelsson, Kennet
    et al.
    Luleå tekniska universitet.
    Yu, Yao
    Luleå tekniska universitet.
    Runesson, Kenneth
    Chalmers University of Technology.
    Constitutive modelling of Swedish fine grained soils1991In: Deformation of soils and displacements of structures: X ECSMFE, Balkema Publishers, A.A. / Taylor & Francis The Netherlands , 1991, Vol. Vol. 1, p. 183-187Conference paper (Refereed)
  • 280.
    Axelsson, Kennet
    et al.
    Luleå tekniska universitet.
    Yu, Yao
    Luleå tekniska universitet.
    Runesson, Kenneth
    Chalmers University of Technology, Department of Structural Mechanics.
    Klisinski, M.
    Chalmers University of Technology, Department of Structural Mechanics.
    Determination of constitutive parameters for soils based on optimization1991In: Computer methods and advances in geomechanics: proceedings of the Seventh International Conference on Computer Methods and Advances in Geomechanics, Cairns, 6-10 May 1991 / [ed] G. Beer, Rotterdam: Balkema Publishers, A.A. / Taylor & Francis The Netherlands , 1991, p. 569-574Conference paper (Refereed)
    Abstract [en]

    Optimization-based methods for the determination of constitutive parameters of material models are evaluated. Rosenbrock's and Levenberg-Marquardt's algorithms are considered in particular. Based on experimental data for Swedish silt, two plasticity models are calibrated and their performances are compared

  • 281.
    Axelsson, Kenneth
    Luleå tekniska universitet.
    On distortional plastic hardening1978Report (Other academic)
  • 282. Axelsson, Morgan
    et al.
    Larsson, Stefan
    KTH, School of Architecture and the Built Environment (ABE), Civil and Architectural Engineering, Soil and Rock Mechanics.
    Column penetration tests for lime-cement columns in deep mixing - experiences in Sweden2003In: Geotechnical Special Publication, ISSN 0895-0563, Vol. 120, p. 681-694Article in journal (Refereed)
    Abstract [en]

    In this paper column penetration tests for lime-cement columns in deep soil mixing are reviewed. In principle, column penetration tests and reversed column penetration tests are considered. Improved test techniques are presented and discussed based on tests from two test sites in Sweden. The investigations indicate that the reversed column penetration test is the most suitable method for the primary quality test with reference to the uniformity and continuity of the columns. The probe should, however, be installed by the lime-cement column machine short after the manufacturing of the column to avoid disturbances in the mixing process and to enable a random test selection.

  • 283. Axelström, K
    et al.
    Back, PE
    Carling, M
    Platsspecifika riktvärden för f d impregneringsanläggningar. Förstudie2001Report (Other academic)
    Abstract [sv]

    (1) Metodik för riskbedömning av förorenad mark; (2) Impregneringsplatser – bakgrund; (3) Viktiga faktorer vid riskbedömning; (4) Kravspecifikation på platsspecifik riskbedömningsmodell; (5) Tillämpning; (6) Inventering av riskbedömningsmodeller; (7) Testfall; (8) Förslag till fortsättning

  • 284.
    Baby, Sultana Nasrin
    et al.
    Royal Melbourne Institute of Technology, RMIT University, Melbourne, Australia.
    Arrowsmith, Colin
    Royal Melbourne Institute of Technology, RMIT University, Melbourne, Australia.
    Al-Ansari, Nadhir
    Luleå University of Technology, Department of Civil, Environmental and Natural Resources Engineering, Mining and Geotechnical Engineering.
    Application of GIS for Mapping Rainwater-Harvesting Potential: Case Study Wollert, Victoria: Application of GIS for Mapping Rainwater-Harvesting Potential: Case Study Wollert, Victoria2019In: Engineering, ISSN 1947-3931, E-ISSN 1947-394X, Vol. 11, no 1, p. 14-21Article in journal (Refereed)
    Abstract [en]

    Water is a basic normal asset for supporting the condition of life. Accessible water assets are feeling the squeeze because of expanding demand. Soon wa- ter,  which  we  have  epended  upon  to  be  accessible  and  an  unconditional present of nature will turn into a rare roduct. Protection and conservation of water assets are desperately required. In many parts of Victoria, water supply to communities is limited. Rainwater harvesting systems can provide water ator near the point of demand. The systems can be owner and utility operated and  managed.  Rainwater  collected  using  existing  structures,  i.e.  rooftops, parking lots, playgrounds, parks, ponds, floodplains etc., has few negative en- vironmental impacts compared to other technologies for water resources de- velopment. Rainwater is relatively clean and the quality is usually acceptablefor many purposes with little or even no treatment. The physical and chemi- cal properties of rainwater are usually superior to sources of groundwater that may have been subjected to contamination. The present study was intended to measure the rooftop rainwater harvesting potential using GIS techniques. The GIS examination utilized in this investigation was basically an efficient assess- ment  of  rooftop  water  collecting  in  the  chose  Wollert  which  is  a  suburb  in Melbourne, Victoria. With the use of GIS it was conceivable to appraise the ag- gregate sum of water harvestable at the household level. It is very tedious work to assess the catchments available for rooftop rainwater harvesting. Here the roof surfaces are the catchments and GIS is employed to calculate the area of various  types  of  roofs  and  their  potential  for  planning  for  the  area  under study.  As  a  result  Eucalypt  Estate  Wollert  has  huge  potential  and  can  makeabove 179.11 litres water available per person per day throughout the year.

  • 285.
    Baby, Sultana Nasrin
    et al.
    School of Mathematical and Geospatial Sciences, Royal Melbourne Institute of Technology, RMIT University, Melbourne, Australia.
    Arrowsmith, Colin
    School of Mathematical and Geospatial Sciences, Royal Melbourne Institute of Technology, RMIT University, Melbourne, Australia.
    Al-Ansari, Nadhir
    Luleå University of Technology, Department of Civil, Environmental and Natural Resources Engineering, Mining and Geotechnical Engineering.
    Abbas, Nahlah
    School of Engineering and Technology, Central Queensland University, Melbourne, Australia.
    Spatial Decision Support System for CoastalZone Management under a ChangingClimate in Victoria, Australia2018In: Engineering, ISSN 1947-3931, E-ISSN 1947-394X, Vol. 10, no 10, p. 637-642, article id 87732Article in journal (Refereed)
    Abstract [en]

    The ultimate aim of using spatial  datasets and  spatial  data modelling is  fo- cused on enabling a sustainable environment by bringing the public policies into  practice.  The  consequence  will  be  sustainable  spatially  aware  strategic planning for  all  levels  of  Australian government.  Geographical  Information Systems (GIS) are the platform that can serve this aim provided that model, current process and spatial datasets are fit for purpose. To bring public policy into practice a broad range of knowledge from different disciplines is needed. Most decision making processes are pressured in terms of time and driving forces and also the process is beyond the knowledge of individuals in the var- ious  disciplines.  There  is  a  need  for  immediate  uptake  models  and  tools which are relevant to the target subject that will facilitate this decision making process. This paper focuses on realizing the utility in spatial data and spatial data handling in order to help climate change adaptation programs at local government level. Web-based mapping tools can assist planners prepare for the changing climate conditions in Bass Coast Shire Council. The GIS team has gathered data from various climate research organizations to understand projections of what different climate scenarios might look like over the next 100-year period. From this website demo it is hoped that the user will under- stand  how  the  tool  works,  background  information  on  different  GIS  plat- forms, access to interactive mapping, online geospatial analysis tools, videos, open source resource, sea level tools, modelling, 3D visualization and direct download access to various planning and natural resource data sets relating to environment  management.  Some  results  from  our  elevation  data  analysesthrough these Web map visualization tools are provided.

  • 286. Back, PE
    Sampling strategies and data worth analysis for contaminated land. A literature review2001Report (Other academic)
  • 287. Back, PE
    et al.
    Enell, A
    Fransson, M
    Hermansson, S
    Rosén, L
    Volchko, Y
    Wiberg, K
    Åberg, A
    Markmiljöns skyddsvärde. En härledning med utgångspunkt i miljöetik och lagstiftning2016Report (Other academic)
    Abstract [sv]

    (1) Värdegrund för skydd av markmiljön; (2) Härledning av markmiljöns skyddsvärde; (3) Diskussion om värdegrunden; (4) Slutsatser och fortsatt arbete: Bilaga: (1) Naturens skyddsvärde - Juridik och policy

  • 288. Back, PE
    et al.
    Rosén, B
    Riskanalys av områden där järnvägstrafik berör vattentäkter och andra vattenresurser. Metodutveckling2001Report (Other academic)
    Abstract [sv]

    (1) Metodik för riskanalys; (2) Gruppering av farligt gods ur spridningssynpunkt; (3) Sannolikhet för olycka och utläckage av farligt gods; (4) Sannolikhetsberäkningar för ytvattentäkter; (5) Beräkning av konsekvenskostnader; (6) Beräkning av risk; (7) Praktiska råd för beräkningarna; (8) Riskvärdering; Bilagor: (1) Hydrogeologiska typmiljöer; (2) Felträd - skadat tätskikt

  • 289.
    Bagherbandi, Mohammad
    KTH, School of Architecture and the Built Environment (ABE), Urban Planning and Environment, Geodesy and Satellite Positioning. University of Gävle, Sweden.
    Deformation monitoring using different least squares adjustment methods: A simulated study2016In: KSCE Journal of Civil Engineering, ISSN 1226-7988, E-ISSN 1976-3808, Vol. 20, no 2, p. 855-862Article in journal (Refereed)
    Abstract [en]

    This study aims to investigate the ability of different least squares adjustment techniques for detecting deformation. A simulated geodetic netwo rk is used for this purpose. The observations are collected using the Total Station instrument in three epochs and different least squares adjustment methods are used to analyze the simulated network. The applied methods are adjustment-byelement, using variance-covariance components and Tikhonov regularization. For numerical computation, we utilized exist geodetic network around the simulated network and the deformation (changes in the simulated network) imposes to the object using a simulator in each epoch. The obtained results demonstrate that more accurate outcome for detection of small deformation is possible by estimating variance-covariance components. The difference of the estimated and the simulated deformations in the best scenario, i.e., applying variance-covariance components, is 0.2 and 0.1 mm in x and y directions. In comparison with adjustment by element and Tikhonov regularization methods the differences are 1.1 and 0.1 in x direction and 1.4 and 1.1 mm in y direction, respectively. In addition, it is also possible to model the deformation and therefore it can be seen that how the calculated displacement will affect the result of deformation modelling. It has been demonstrated that determining reasonable variance-covariance components is very important to estimate realistic deformation model and monitoring the geodetic networks.

  • 290.
    Bagherbandi, Mohammad
    et al.
    KTH, School of Architecture and the Built Environment (ABE), Urban Planning and Environment, Geodesy and Satellite Positioning.
    Bai, Y.
    Sjöberg, L. E.
    Tenzer, R.
    Abrehdary, Majid
    KTH, School of Architecture and the Built Environment (ABE), Urban Planning and Environment, Geodesy and Satellite Positioning.
    Miranda, S.
    Alcacer Sanchez, J. M.
    Effect of the lithospheric thermal state on the Moho interface: A case study in South America2017In: Journal of South American Earth Sciences, ISSN 0895-9811, E-ISSN 1873-0647, Vol. 76, p. 198-207Article in journal (Refereed)
    Abstract [en]

    Gravimetric methods applied for Moho recovery in areas with sparse and irregular distribution of seismic data often assume only a constant crustal density. Results of latest studies, however, indicate that corrections for crustal density heterogeneities could improve the gravimetric result, especially in regions with a complex geologic/tectonic structure. Moreover, the isostatic mass balance reflects also the density structure within the lithosphere. The gravimetric methods should therefore incorporate an additional correction for the lithospheric mantle as well as deeper mantle density heterogeneities. Following this principle, we solve the Vening Meinesz-Moritz (VMM) inverse problem of isostasy constrained by seismic data to determine the Moho depth of the South American tectonic plate including surrounding oceans, while taking into consideration the crustal and mantle density heterogeneities. Our numerical result confirms that contribution of sediments significantly modifies the estimation of the Moho geometry especially along the continental margins with large sediment deposits. To account for the mantle density heterogeneities we develop and apply a method in order to correct the Moho geometry for the contribution of the lithospheric thermal state (i.e., the lithospheric thermal-pressure correction). In addition, the misfit between the isostatic and seismic Moho models, attributed mainly to deep mantle density heterogeneities and other geophysical phenomena, is corrected for by applying the non-isostatic correction. The results reveal that the application of the lithospheric thermal-pressure correction improves the RMS fit of the VMM gravimetric Moho solution to the CRUST1.0 (improves ∼ 1.9 km) and GEMMA (∼1.1 km) models and the point-wise seismic data (∼0.7 km) in South America.

  • 291.
    Bagheri, Mehdi
    KTH, School of Architecture and the Built Environment (ABE), Civil and Architectural Engineering, Soil and Rock Mechanics.
    Block stability analysis using deterministic and probabilistic methods2011Doctoral thesis, comprehensive summary (Other academic)
    Abstract [en]

    This thesis presents a discussion of design tools for analysing block stability around a tunnel. First, it was determined that joint length and field stress have a significant influence on estimating block stability. The results of calculations using methods based on kinematic limit equilibrium (KLE) were compared with the results of filtered DFN-DEM, which are closer to reality. The comparison shows that none of the KLE approaches– conventional, limited joint length, limited joint length with stress and probabilistic KLE – could provide results similar to DFN-DEM. This is due to KLE’s unrealistic assumptions in estimating either volume or clamping forces.

    A simple mechanism for estimating clamping forces such as continuum mechanics or the solution proposed by Crawford-Bray leads to an overestimation of clamping forces, and thus unsafe design. The results of such approaches were compared to those of DEM, and it was determined that these simple mechanisms ignore a key stage of relaxation of clamping forces due to joint existence. The amount of relaxation is a function of many parameters, such as stiffness of the joint and surrounding rock, the joint friction angle and the block half-apical angle.

    Based on a conceptual model, the key stage was considered in a new analytical solution for symmetric blocks, and the amount of joint relaxation was quantified. The results of the new analytical solution compared to those of DEM and the model uncertainty of the new solution were quantified.

    Further numerical investigations based on local and regional stress models were performed to study initial clamping forces. Numerical analyses reveal that local stresses, which are a product of regional stress and joint stiffness, govern block stability. Models with a block assembly show that the clamping forces in a block assembly are equal to the clamping forces in a regional stress model. Therefore, considering a single block in massive rock results in lower clamping forces and thus safer design compared to a block assembly in the same condition of in-situ stress and properties.

    Furthermore, a sensitivity analysis was conducted to determine which is  the most important parameter by assessing sensitivity factors and studying the applicability of the partial coefficient method for designing block stability.

    It was determined that the governing parameter is the dispersion of the half-apical angle. For a dip angle with a high dispersion, partial factors become very large and the design value for clamping forces is close to zero. This suggests that in cases with a high dispersion of the half-apical angle, the clamping forces could be ignored in a stability analysis, unlike in cases with a lower dispersion. The costs of gathering more information about the joint dip angle could be compared to the costs of overdesign. The use of partial factors is uncertain, at least without dividing the problem into sub-classes. The application of partial factors is possible in some circumstances but not always, and a FORM analysis is preferable.

  • 292.
    Bagheri, Mehdi
    et al.
    KTH, School of Architecture and the Built Environment (ABE), Civil and Architectural Engineering, Soil and Rock Mechanics.
    Shafiezadeh, N
    Continuum Modeling of Masjed E Soleyman Power House Cavern using an Empirical Continuum Media2006In: ARMA's Golden Rocks 2006 - 50 Years of Rock Mechanics, 2006Conference paper (Refereed)
    Abstract [en]

    Numerical modeling is a useful tool to design underground openings. Masjed ESoleyman Power House Cavern is one of the largest caverns in the Middle East. Ramamurthy introduced an empirical equivalent media in 1994. Ramamurthy Equivalentmedia was applied to a Finite element analysis. Phase2D software was used to analyzecontinuum media. The displacements obtained from Equivalent continuum analysis were compared to those measured by MultiPoint Borehole Extensometers (MPBX). 

  • 293.
    Bagheri, Mehdi
    et al.
    Iran Water and Power Development Co.
    Shafiezadeh, N
    Hajihassani, H.R.
    Discontinuum and Continuum Modeling of Masjed E Soleyman Power House Cavern2006In: Proceedings of the International Symposium of the International Society for Rock Mechanics, Eurock 2006: Eurock 2006 Multiphysics Coupling and Long Term Behaviour in Rock Mechanics, 2006, p. 689-693Conference paper (Refereed)
    Abstract [en]

    Numerical modelling is a useful tool to design underground openings. Masjed E Soleyman Power House Cavern is one of the largest caverns in the Middle East. Continuum and discontinuum analyses were performed to evaluate the stability of the cavern. Phase2D and UDEC softwares were used to analyse for continuum and discontinuum media respectively. The displacements obtained from continuum and discontinuum analyses were compared to those measured by Multiple Borehole Extensometers (MPBX).

  • 294.
    Bagheri, Mehdi
    et al.
    Iran Water and Power Development Co.
    Shafiezadeh, S
    Evaluation of Rock Mass Modulus by Ramamurthy Equivalent Media - A Case Study of Masjed Soleyman Cavern2006In: Proceedings of the International Symposium on Dams in the Societies of the 21st Century, ICOLD-SPANCOLD: Dams and Reservoirs, Societies and Environment in the 21st Century, 2006, p. 731-735Conference paper (Refereed)
    Abstract [en]

    In situ rock mass modulus is one of the most important parameters for designing the underground excavations. Rock Mass modulus can be determined by rock massclassification, equivalent media approach or by performing of in-situ tests. Ramamurthyequation has been applied to the numerical code, Flac, to evaluate rock mass modulussurrounding Masjed Soleyman Power House Cavern. The results have been compared to those obtained from back analysis and equations based on rock mass classification. This comparison indicates that the rock mass modulus obtained from Ramamurthyequations is more reliable than those obtained from equations based on rock massclassification. Another advantage of the Ramamurthy equivalent media is the possibility of distinguishing the variations of modulus due to the excavating. It is suggested that by helping of a numerical code and Ramamurthy equivalent media the variation of moduluscan be observed during different stages of excavation.

  • 295.
    Bahrekazemi, Mehdi
    et al.
    KTH, School of Architecture and the Built Environment (ABE), Civil and Architectural Engineering, Soil and Rock Mechanics.
    Bodare, Anders
    KTH, School of Architecture and the Built Environment (ABE), Civil and Architectural Engineering, Soil and Rock Mechanics.
    Andréasson, Bo
    Smekal, Alexander
    Mitigation of train-induced ground vibrations. Lessons from the Ledsgård project2004Conference paper (Other academic)
  • 296.
    Bahrekazemi, Mehdi
    et al.
    KTH, School of Architecture and the Built Environment (ABE), Civil and Architectural Engineering, Soil and Rock Mechanics.
    Bodare, Anders
    KTH, School of Architecture and the Built Environment (ABE), Civil and Architectural Engineering, Soil and Rock Mechanics.
    Massarsch, Rainer
    KTH, School of Architecture and the Built Environment (ABE), Civil and Architectural Engineering, Soil and Rock Mechanics.
    Vibrationsproblem vid tunnelsprängning i bebyggda områden2007In: Väg och vattenbyggaren, ISSN 0042-2177, no 4, p. 32-37Article in journal (Other (popular science, discussion, etc.))
  • 297.
    Bahrekazemi, Mehdi
    et al.
    KTH, Superseded Departments, Civil and Environmental Engineering.
    With, Christoffer
    KTH, Superseded Departments, Civil and Environmental Engineering.
    Bodare, Anders
    KTH, Superseded Departments, Civil and Environmental Engineering.
    Semi-Empirical Model for Prediction of Train Induced Ground Vibrations2004Conference paper (Refereed)
  • 298.
    Ban, Yifang
    KTH, School of Architecture and the Built Environment (ABE), Urban Planning and Environment, Geoinformatics.
    Multitemporal remote sensing: Current status, trends and challenges2016In: Remote Sensing and Digital Image Processing, 2016, p. 1-18Conference paper (Refereed)
    Abstract [en]

    Our planet is facing unprecedented environmental challenges including rapid urbanization, deforestation, pollution, loss of biodiversity, sea-level rising, melting polar ice-caps and climate change. With its synoptic view and the repeatability, remote sensing offers a powerful and effective means to observe and monitor our changing planet at local, regional and global scale. Since the launch of Landsat-1 in 1972, numerous Earth Observation satellites have been launched providing large volumes of multitemporal data acquired by multispectral, hyperspectral, passive microwave, synthetic aperture radar (SAR), and LiDAR sensors. This chapter first presents an overview of the Earth Observation sensors and trends in multitemporal observation capacity. Then the current status, challenges and opportunities of multitemporal remote sensing are discussed. Finally the synopsis of the book is provided covering a wide array of methods and techniques in processing and analysis of multitemporal remotely sensed images as well as a variety of application examples in both land and aquatic environments.

  • 299. Bardos, R Paul
    et al.
    Bone, Brian
    Andersson-Sköld, Yvonne
    Swedish Geotechnical Institute.
    Suer, Pascal
    Swedish Geotechnical Institute.
    Track, Thomas
    Wagelmans, Marlea
    Crop-based systems for sustainable risk-based land management for economically marginal damaged land2011In: Remediation Journal, ISSN 1051-5658, E-ISSN 1520-6831, Vol. 21, no 4, p. 11-33Article in journal (Refereed)
    Abstract [en]

    The increasing need for biomass for energy and feedstocks, along with the need to divert organic methane generating wastes from landfills may provide the economic leverage necessary to return this type of marginal land to functional and economic use and is strongly supported by policy at an European Union (EU) level. The use of land to produce biomass for energy production or feedstocks for manufacturing processes (such as plastics and biofuels) has, however, become increasingly contentious, with a number of environmental, economic, and social concerns raised. The REJUVENATE project has developed a decision support framework to help land managers and other decision makers identify potential concerns related to sustainability and what types of biomass re-use for marginal land might be possible, given their particular circumstances. The decision-making framework takes a holistic approach to decision making rather than viewing biomass production simply as an adjunct of a planned phytoremediation project. The framework is serviceable in Germany, Sweden, and the United Kingdom. These countries have substantive differences in their land and biomass re-use circumstances. However, all can make use of the set of common principles of crop, site, value, and project risk management set out by REJUVENATE. This implies that the framework should have wider applicability across the EU. This paper introduces the decision support framework.

  • 300.
    Barnes, David L.
    et al.
    University of Alaska, Fairbanks.
    Cosden, Elizabeth
    Fairbanks Environmental Service.
    Johnson, Bryan
    Fairbanks Environmental Service.
    Johnson, Karol
    Fairbanks Environmental Service.
    Stjärnström, Stina
    Luleå tekniska universitet.
    Johansson, Karin
    Luleå tekniska universitet.
    Filler, Dennis M.
    Shannon and Wilson, Inc..
    Operation of soil vapor extraction in cold climates2002In: Cold regions engineering: cold regions impacts on transportation and infrastructure : proceedings of the eleventh international conference, May 20-22, 2002, Anchorage, Alaska / [ed] Kelly S. Merrill, New York: American Society of Civil Engineers (ASCE), 2002, p. 956-967Conference paper (Refereed)
    Abstract [en]

    Soil Vapor Extraction has proven to be a viable method for reducing the mass of volatile compounds from soils that have been impacted by contamination. The theory, design and use of SVE systems have been fairly well documented, however the use of SVE systems in cold environments such as Alaska has not been adequately investigated to date. This paper examines the use of SVE systems in cold environments. The affect of low soil temperatures on volatile compound removal by SVE is discussed. Methods used to overcome the impact low temperatures have on the operation and effectiveness of SVE systems are examined in detail. Possible low cost strategies such as barometric pumping during winter months are presented as solutions to reducing SVE operating costs in cold regions

3456789 251 - 300 of 2336
CiteExportLink to result list
Permanent link
Cite
Citation style
  • apa
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf