The effect of shallow foundation position on their interaction with reverse faults

Waqas Ahmed, Fraser Bransby, Shuichi Nagaoka

Research output: Chapter in Book/Conference paperConference paper

Abstract

The paper reports a series of centrifuge model tests designed to study the effect of foundation position on the interaction of reverse, dip-slip faults with shallow foundations. All tests are conducted with a 15 m deep, dry sand layer and a reverse fault with dip angle 60°. Results of a 'free-field' test are first presented which allows the fault rupture propagation through the soil to be investigated when no foundation is present. Additional tests are then reported in which shallow foundations are placed at different positions relative to the fault. It is seen that interaction between the foundation and the fault often causes deviation of the fault from the free-field condition, and this may protect the foundation from damage. This has also been observed in recent case histories. In addition, the response of the foundation as characterized by its rotation is very sensitive to the exact position of the foundation - the interaction between the foundation and the fault is subtle. Design should consider carefully the position of the fault emergence with respect to shallow foundations.

Original languageEnglish
Title of host publicationProceedings of the Geotechnical Earthquake Engineering and Soil Dynamics IV Congress 2008 - Geotechnical Earthquake Engineering and Soil Dynamics, GSP 181
Edition181
DOIs
Publication statusPublished - 1 Dec 2008
Externally publishedYes
EventGeotechnical Earthquake Engineering and Soil Dynamics IV Congress 2008 - Geotechnical Earthquake Engineering and Soil Dynamics - Sacramento, CA, United States
Duration: 18 May 200822 May 2008

Conference

ConferenceGeotechnical Earthquake Engineering and Soil Dynamics IV Congress 2008 - Geotechnical Earthquake Engineering and Soil Dynamics
CountryUnited States
CitySacramento, CA
Period18/05/0822/05/08

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