深基坑开挖与锚杆支护FLAC^(3D)数值模拟分析  

FLAC^(3D) Numerical Simulation Analysis of Foundation Excavation and Bolting

作　　者：张卢明[1] 郑明新[1] 何敏[2] 郑玉之[2] 

机构地区：[1]华东交通大学道桥与岩土工程研究所,江西南昌330013 [2]贵州大学,贵州贵阳550003

出　　处：《华东交通大学学报》2007年第5期9-12,共4页Journal of East China Jiaotong University

基　　金：国家自然科学基金(50668002);江西省教育厅2007年度科技项目计划项目资助(赣教技字[2006]182号)

摘　　要：运用FLAC3D软件对某市影视城及商办综合楼深基坑进行了开挖与支护的模拟.计算中采用摩尔-库伦弹塑性模型.通过计算得出深基坑的竖直位移、土体水平位移、锚杆的内力、土体应力应变分布,并与实测值进行了比较,最后采用强度折减法对基坑开挖和支护的稳定性进行了评价.可为工程设计与施工提供参考.The simulation of excavation and support on the deep pit of a MTV city and commercial integrative building is conducted through the software FLAG3D and the Mohr - Coulomb model. This simulation offers the horizontal displacements of the deep excavation, vertical displacement, internal force of cable, stress and strain of soils. Finally, the stability of retaining structures is evaluated by means of the strength reduction. It is useful in the design and construction of similar projects.

关 键 词：FLAC^3D 基坑开挖与支护 稳定性 强度折减法 

分 类 号：TU470[建筑科学—结构工程]