SOIL-PILE STRUCTURE INTERACTION DURING EARTHQUAKES
SOIL-PILE STRUCTURE INTERACTION DURING EARTHQUAKES
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地震期间土-桩结构的相互作用
DOI：
10.1061/40744(154)28
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发表时间：
2004
期刊：
影响因子：
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通讯作者：
S. Malhotra
中科院分区：
文献类型：
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作者：
S. Malhotra
地震土-桩结构相互作用是一个复杂的过程，涉及多个同时发生的现象，有时甚至是补偿现象。为了更好地理解SSPSI，当桩支撑结构受到地震载荷时发生的物理过程首先被分类为远场效应、近场效应和惯性效应。远场效应包括孔隙压力的产生、地面变形和随后的循环退化。近场效应包括应变率效应（土-桩滑移）、循环退化和间隙-拍击机制。然后讨论每种现象对轴向t-z和横向p-y响应的影响。
Seismic soil-pile structure interaction (SSPSI) is a complex process involving several, simultaneously occurring and, sometimes compensating phenomena. To better appreciate SSPSI, the physical processes that occur when a pile supported structure is seismically loaded are first categorized into far-field effects, near field effects, and inertial effects. Far-field effects consist of pore-pressure generation, ground deformation and subsequent cyclic degradation. Near field effects include strain rate effects (soil-pile slippage), cyclic degradation, and gap-slap mechanism. The effect of each phenomenon on the axial t-z and lateral p-y response is then discussed.