Change search
ReferencesLink to record
Permanent link

Direct link
A 3DEC numerical analysis of the interaction between uneven rock surface and shotcrete lining: Validation of physical model and evaluation of influence of unevenness on the support effect of shotcrete
Luleå University of Technology, Department of Civil, Environmental and Natural Resources Engineering, Mining and Geotechnical Engineering.
2013 (English)Report (Other academic)
Abstract [en]

Although shotcrete (sprayed concrete) has been widely used as rock support in mines and in civil engineering projects, the complex interaction between shotcrete and rock has not been studied well. The main reason is that the performance of shotcrete is influenced by a number of important parameters.Experiences from previous research and past projects show that the unevenness of rock surface has a large impact on the number of failures at the interface and in the lining. Furthermore, the behaviour of the lining is sensitive to small amplitudes of the surface roughness. Although people have done some experimental and numerical analysis, the influence of the complex unevenness of three dimensional shaped surfaces on the shotcrete – rock interaction has not been well studied.The project here focuses on the influence of the surface unevenness of a circular opening on the support effect of shotcrete. The work was done by using a 3D numerical simulation (3DEC) and was conducted in two stages. In stage 1, the numerical model was validated by comparing with physical model tests by Chang (1994). In stage 2, based on the well validated numerical model, the influence of unevenness on the support effect of shotcrete was further investigated.

Place, publisher, year, edition, pages
Luleå: Luleå tekniska universitet, 2013. , 55 p.
Research report / Luleå University of Technology, ISSN 1402-1528
Keyword [en]
Numerical analysis, uneven rock surface, shotcrete, interaction, 3DEC, Civil engineering and architecture - Geoengineering and mining engineering
Keyword [sv]
Samhällsbyggnadsteknik och arkitektur - Geoteknik och gruvteknik
Research subject
Mining and Rock Engineering
URN: urn:nbn:se:ltu:diva-22572Local ID: 35bdbb29-f16d-431a-8350-defe53e26afeISBN: 978-91-7439-580-8 (PDF)OAI: diva2:995621
Godkänd; 2013; 20121221 (pinzha)Available from: 2016-09-29 Created: 2016-09-29Bibliographically approved

Open Access in DiVA

fulltext(22918 kB)0 downloads
File information
File name FULLTEXT01.pdfFile size 22918 kBChecksum SHA-512
Type fulltextMimetype application/pdf

Search in DiVA

By author/editor
Zhang, Ping
By organisation
Mining and Geotechnical Engineering

Search outside of DiVA

GoogleGoogle Scholar
The number of downloads is the sum of all downloads of full texts. It may include eg previous versions that are now no longer available

ReferencesLink to record
Permanent link

Direct link