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Numerical Analysis of Soil Liquefaction Using Centrifuge Tests of a Level Site Subjected to Biaxial Shaking
This study investigated the dynamic response and liquefaction of saturated-sand level deposits subjected to biaxial shaking using a number of centrifuge tests. Loose sandy soil deposits were built in a 2D laminar container and subjected to a series of biaxial base excitations that approximate in a fairly realistic fashion the conditions of a site subjected to earthquake shaking. A dense array of accelerometers and pore pressure sensors were used to monitor the deposit response. The recorded accelerations and pore pressures were used along with non-parametric identification procedures to estimate the corresponding dynamic shear stress-strain histories. In turn, these histories were employed to assess the effects of non-proportional loading on soil contraction and dilation mechanisms. The predicted response of the soil using the calculated parameters was in good agreement with the recorded one.
Numerical Analysis of Soil Liquefaction Using Centrifuge Tests of a Level Site Subjected to Biaxial Shaking
This study investigated the dynamic response and liquefaction of saturated-sand level deposits subjected to biaxial shaking using a number of centrifuge tests. Loose sandy soil deposits were built in a 2D laminar container and subjected to a series of biaxial base excitations that approximate in a fairly realistic fashion the conditions of a site subjected to earthquake shaking. A dense array of accelerometers and pore pressure sensors were used to monitor the deposit response. The recorded accelerations and pore pressures were used along with non-parametric identification procedures to estimate the corresponding dynamic shear stress-strain histories. In turn, these histories were employed to assess the effects of non-proportional loading on soil contraction and dilation mechanisms. The predicted response of the soil using the calculated parameters was in good agreement with the recorded one.
Numerical Analysis of Soil Liquefaction Using Centrifuge Tests of a Level Site Subjected to Biaxial Shaking
Shafee, Omar El (author) / Zeghal, Mourad (author) / Abdoun, Tarek (author)
Geo-Congress 2020 ; 2020 ; Minneapolis, Minnesota
Geo-Congress 2020 ; 69-78
2020-02-21
Conference paper
Electronic Resource
English
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