Time-dependent response of laterally loaded piles and pile groups embedded in transversely isotropic saturated viscoelastic soils
Time-dependent response of laterally loaded piles and pile groups embedded in transversely isotropic saturated viscoelastic soils
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DOI：
10.1016/j.compgeo.2020.103815
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发表时间：
2020-12-01
影响因子：
5.3
通讯作者：
Cheng, Yi Chong
中科院分区：
文献类型：
--
作者：
Ai, Zhi Yong;Zhao, Yong Zhi;Cheng, Yi Chong
本文研究了横观各向同性饱和粘弹性地基中水平受载单桩和群桩的时变响应。将边界元法与梁理论耦合求解水平荷载作用下的单桩问题。在群桩分析中，考虑了桩与桩之间的相互作用，通过叠加桩土界面上的边界力影响，得到了各桩引起的广义位移。分析中考虑了桩顶荷载从承台到桩顶的分布。通过算例验证了本文方法的有效性，并分析了横向各向同性、粘弹性参数、柔度系数、长细比和桩间距等关键参数对水平受荷桩和群桩计算结果的影响。
This paper investigates the time-dependent response of laterally loaded single piles and pile groups embedded in transversely isotropic saturated viscoelastic soils. The solution for single piles subjected to lateral loads is solved by the coupling of the boundary element method and the Timoshenko beam theory. In the analysis of the pile group, the interaction between piles is taken into account and the generalized displacements caused by all piles are obtained by superimposing the influences of boundary forces on the soil-pile interfaces. The load distribution from the pile cap to pile tops is involved in the analysis. The presented method of laterally loaded piles and pile groups is verified through several examples, and the influences of some key parameters including transverse isotropy, the viscoelastic parameters, the flexibility coefficient, the slenderness ratio and the pile spacing are investigated by numerical examples.