粘性土地基中群桩施工产生土体内的位移场

Displacement Field Caused by Pile Installation in Clay Ground

本文用土体内空穴球形扩张模型和源-源影射的方法，根据土塑性力学的基本原理，推得了粘性土地基上单桩及群桩施工产生周围土体内各点位移的表达式。并用工程实例进行对比，初步探讨了群桩施工产生位移场的一些规律。

An analytic solution for the displacement field caused by pile installation in saturated clay ground based on the theory of soil plastic mechanics by means of cavity expansion and imaging method has been presented in this paper.The calculated results approach to those of the observation in site.Furthermore,some regularities of displacement after pile installation are also discussed.