Abstract
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.
Original language | English (US) |
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Pages (from-to) | 69-78 |
Number of pages | 10 |
Journal | Geotechnical Special Publication |
Volume | 2020-February |
Issue number | GSP 318 |
DOIs | |
State | Published - 2020 |
Event | Geo-Congress 2020: Geotechnical Earthquake Engineering and Special Topics - Minneapolis, United States Duration: Feb 25 2020 → Feb 28 2020 |
ASJC Scopus subject areas
- Civil and Structural Engineering
- Architecture
- Building and Construction
- Geotechnical Engineering and Engineering Geology