郭玉荣¹  王兆军²  邹银生¹
    （1 湖南大学土木工程学院  长沙 410082； 2 金华市城市规划设计院 321000）

[提要]  考虑基坑开挖过程中土体和支护墙的非线性相互作用特性，提出了一种合理模拟基坑施工过程的支护结构内力和变形分析的土抗力法。该方法在地基土抗力和土压力的模拟上优于现行的弹性地基梁法，使计算结果比较符合实际。
[关键词]  基坑支护  非线性  土抗力  土压力

Based on nonlinear soil-retaining structure interaction, a subgrade reaction method of analyzing force and deformation of retaining structure is proposed, which can properly simulate the construction sequence of excavation. The proposed method has been shown to capture the displacement of the retaining structure better than the method of beams on elastic foundation.
Keywords: retaining structure; foundation pit; nonlinear; subgrade reaction; earth pressure