Behavior of pile foundation due to excavation-induced lateral soil movement
ZHANG Chen-rong1, 2, HUANG Mao-song1, 2
(1. Department of Geotechnical Engineering, Tongji University, Shanghai 200092, China; 2. Key Laboratory of Geotechnical and Underground Engineering of Ministry of Education, Shanghai 200092, China)
Abstract： The excavation-induced lateral soil movement may adversely affect any nearby pile foundation systems. A two-stage method is used to determine the additional bending moments and deflections on pile foundations. Firstly, the free field soil movement is used as the input to acquire the lateral differential governing equation of a single pile based on the Winkler subgrade model and deformation compatibility condition. Then, the shielding effect due to pile-soil-pile interaction is considered by the simplified Mindlin’s equation. The pile group governing equations are obtained at last and are solved by the finite difference method. Comparisons are made between the observed behaviors of centrifugal model tests and those computed by the proposed method.
张陈蓉, 黄茂松, . 基坑开挖引起的邻近建筑物桩基变形受力响应[J]. 岩土工程学报, 2012, 34(suppl): 565-570.
ZHANG Chen-rong, HUANG Mao-song, . Behavior of pile foundation due to excavation-induced lateral soil movement. Chinese J. Geot. Eng., 2012, 34(suppl): 565-570.
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