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The influence of different stress states on soil liquefaction under a building
Institute for Geotechnical Engineering, Department of Civil, Environmental and Geomatic Engineering, ETH Zurich.
Institute for Geotechnical Engineering, Department of Civil, Environmental and Geomatic Engineering, ETH Zurich.ORCID iD: 0000-0003-1935-1743
2007 (English)Conference paper, Published paper (Refereed)
Abstract [en]

Liquefaction of soil depends on the state and type of soil, loading function and the initial stress state ofa soil element prior to a dynamic event. Most studies focus on an initial stress state from the free fieldwhile assuming σ2 = σ3. Therefore, this stress state can be studied in a triaxial apparatus. With ahollow cylinder apparatus, it is possible to apply any possible combination of σ1, σ2 and σ3 in the soilprior to testing and thus enables the reproduction of boundary conditions e.g. as given for different soilelements under a building.Underneath a building different initial stress states need to be taken into account to judge the safetyand the behavior of the building during and after an earthquake. The focus in this contribution is tostudy the influence of these stress states. For a typical building the initial stress states were chosen atthree locations in a depth of 5 m. Experiments with fine sand are carried out under these initial stressstates with combined cyclic shear and axial loading. The results are presented and discussed in termsof the influence of stress state on liquefaction susceptibility and potential failures modes of a buildingtype to be considered in soil structure interaction.

Place, publisher, year, edition, pages
2007.
National Category
Geotechnical Engineering
Research subject
Soil Mechanics
Identifiers
URN: urn:nbn:se:ltu:diva-68728OAI: oai:DiVA.org:ltu-68728DiVA, id: diva2:1205740
Conference
4th International Conference on Earthquake Geotechnical Engineering, Saloniki, June 25-28, 2007
Available from: 2018-05-15 Created: 2018-05-15 Last updated: 2018-05-15Bibliographically approved

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Laue, Jan
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CiteExportLink to record
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  • apa
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