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Effect of bearing capacity on designing foundations in Iraq using STAAD Pro- v8i
Luleå University of Technology, Department of Civil, Environmental and Natural Resources Engineering, Mining and Geotechnical Engineering.
Luleå University of Technology, Department of Civil, Environmental and Natural Resources Engineering, Mining and Geotechnical Engineering.ORCID iD: 0000-0002-6790-2653
Luleå University of Technology, Department of Civil, Environmental and Natural Resources Engineering, Mining and Geotechnical Engineering.ORCID iD: 0000-0002-1365-8552
2014 (English)In: Engineering, ISSN 1947-3931, E-ISSN 1947-394X, Vol. 2014, no 6, 292-303 p.Article in journal (Refereed) Published
Abstract [en]

Most of Iraqi soil is classified as Quaternary deposits, especially in the Mesopotamian plain and tributaries of the River Tigris. Soil varies from north to south of Iraq. These differences in soil af-fected the process to select the suitable type of foundation. This research is to study the effect of bearing capacity on shallow foundations in different regions of Iraq. Seventy nine samples were collected from 23 boreholes at three different locations (Mosul at the North, Baghdad at the middle and Basrah at the south of Iraq). The samples were collected at varying depth between 1 to 24m. They were subjected to the following testes: Atterberg limits, sieve and hydrometers, consolidation, direct shear, unconfined compression and the filed (SPT test). The values of the bearing capacity parameters (ϕ and c) were obtained from the above tests. The results obtained were used in the application of the general equation of the bearing capacity. Then, the model of a building was designed (two floors, with mat foundation type) using STAAD Pro software. The average values of bearing capacity in each region were applied in the program (Mosul= 177KPa, Baghdad= 125KPa and Basrah= 84KPa). In addition, the worst bearing capacity values were also used for the three regions (Mosul = 77KPa, Baghdad= 68 KPa and Basrah= 24KPa). The results obtained from the average and worst bearing capacity indicated that for Mosul, we could use shallow foundation (spread and mat used if there was basement) for different areas and for buildings with many sto-ries. For Baghdad region, shallow foundation was more suitable for building not higher than five stories. Finally, for Basrah region, shallow foundations were an appropriate selection, but for most areas deep foundation was the right choice.

Place, publisher, year, edition, pages
2014. Vol. 2014, no 6, 292-303 p.
National Category
Geotechnical Engineering
Research subject
Soil Mechanics
Identifiers
URN: urn:nbn:se:ltu:diva-3492DOI: 10.4236/eng.2014.66033Local ID: 15264240-e01e-4c78-bd4e-e3f0d0f07a88OAI: oai:DiVA.org:ltu-3492DiVA: diva2:976350
Note
Validerad; 2014; 20140422 (nadhir)Available from: 2016-09-29 Created: 2016-09-29 Last updated: 2017-11-24Bibliographically approved

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Al-Taie, EntidharAl-Ansari, NadhirKnutsson, Sven

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