基于Monte Carlo法的深基坑支护结构可靠度研究  

Reliability Research for Supporting Structures of Deep Foundation Pit Based on Monte Carlo Method

作　　者：万志辉[1] 刘红艳[1] 步艳洁 张旭[1] 

机构地区：[1]辽宁工业大学土木建筑工程学院,辽宁锦州121001

出　　处：《华东交通大学学报》2015年第1期71-77,共7页Journal of East China Jiaotong University

摘　　要：对某隧道基坑工程的施工监测数据进行了分析,得出了基坑开挖施工过程中,桩-内撑支护结构中桩体的水平位移随开挖深度的变化规律。提出了该种结构可靠度指标并编制了基于Monte Carlo法的深基坑支护结构桩体水平位移可靠度分析程序。对实例工程的四个施工工况分别进行了计算,结果表明:可靠度分析计算结果与实例监测结果一致,符合性好。On a certain tunnel construction monitoring data of foundation pit engineering is analyzed, it is concluded that, in the process of excavation of the pile-stay within a horizontal displacement of supporting of pile a with the change rule of the excavation depth. This kind of structure reliability index is presented and is established based on the Monte Calor method for pile retaining structure of deep foundation pit horizontal displacement reliability analysis program. For the working condition of four construction of engineering cases are calculated respectively, the results show that the reliability calculation results agree with monitoring results, and good conformity.

关 键 词：深基坑 支护结构 监测数据 MONTE Carlo法 可靠度分析 

分 类 号：TU473.2[建筑科学—结构工程]