Seismic soil-pile-structure interaction based on large shaking table tests

被引:0
|
作者
Tokimatsu, K. [1 ]
Suzuki, H. [1 ]
机构
[1] Tokyo Inst Technol, Tokyo 152, Japan
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中图分类号
P5 [地质学];
学科分类号
0709 ; 081803 ;
摘要
Field performance of various pile foundations that experienced the recent earthquakes are summarized together with the effects of ground displacement as well as those of inertial force of superstructures on pile damage in non-liquefiable and liquefiable deposits. Large shaking table tests conducted on soil-pile-structure models with dry and saturated sands for examining and quantifying the effects of inertial and kinematic forces are demonstrated, in addition to the effects of earth pressure acting on the embedded foundation and of horizontal subgrade reaction of piles. Pseudo-static analysis for estimating pile stress in liquefiable and non-liquefiable sand is presented in which inertial and kinematic effects observed in large shaking table tests are incorporated and the effectiveness of the method has been demonstrated through the comparison of observed and computed pile stresses in the shaking table tests. Sensitivity analysis is also made to differentiate crucial factors affecting pile stress in a liquefied soil.
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页码:77 / 104
页数:28
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