卸荷应力路径下基坑土体变形的有限元模拟  

Finite Element Simulation of Foundation's Deformation Under Unloading Stress Path

作　　者：陈泽世[1] 何世秀[1] 朱志政[1] 庄心善[1] 

机构地区：[1]湖北工业大学土木工程与建筑学院,武汉430068

出　　处：《土工基础》2010年第3期59-60,68,共3页Soil Engineering and Foundation

摘　　要：模拟基坑开挖周边土体应力状态,在真三轴仪上进行了相关应力路径试验,摸索土体变形特征;针对其变形特性,采用有限元程序,对土体变形进行了数值模拟,其结果较接近实际。By simulation the soil＇s stress state around the foundation during excavation,the related stress path tests has been carried out on the true triaxial apparatus,in which the soil＇s deformation characteristics is studied.According to its characteristics,the soil＇s deformation is simulated by FEM and results are approached to the engineering.

关 键 词：卸荷 应力路径 土体变形 有限元模拟 

分 类 号：TU472[建筑科学—结构工程]