To non?linear elastic deformation of soil during the excavation of pit foundation,this paper proposes nonlinear elastic model with Duncan?Chang model to stimulate construction process;

• 针对基坑开挖过程中土体的非线性弹性变形,本文采用邓肯-张模型进行反演计算,用非线性弹性有限元法模拟基坑的开挖过程。