基于卸荷及变形的主动土压力计算  

Calculation of Active Soil Pressure Based on Unloading and Deformation

作　　者：汪中卫[1] 刘国彬[1] 

机构地区：[1]同济大学地下建筑与工程系,上海200092

出　　处：《地下空间》2003年第1期22-27,共6页Underground Space

基　　金：国家自然科学基金资助项目 (10 10 2 0 15 ) ;上海市重点学科建设资助项目

摘　　要：根据基坑开挖工程的特点 ,通过采用反映土的应力历史及应力路径的卸荷模量 ,并引入反映地铁深基坑实测变形规律的经验公式 ,在此基础上进行考虑变形与卸荷等多种因素的土压力计算 。According to the characteristics of foundation pit excavation, by introducing the unloading modulus as expression of the stress history and stress path of the soil and empirical equation representing the variation of measured deformation of deep foundation in the metro, the soil pressure was calculated with considering multiple factors such as deformation and unloading etc. The results were analyzed and compared with the measured values in practice.

关 键 词：卸荷 变形 主动土压力 计算 基坑 

分 类 号：TU432[建筑科学—岩土工程]