软土基坑中水平抗力系数的比例系数反演分析  

Back analysis of proportional coeffi cient of horizontal resistance coeffi cient in soft soil foundation pit

作　　者：许福周 XU Fuzhou(Guangdong Provincial Railway Planning and Design Institute Co.,Ltd,Guangzhou 510030)

机构地区：[1]广东省铁路规划设计研究院有限公司,广州510030

出　　处：《铁道勘测与设计》2023年第4期53-57,共5页Railway Survey and Design

摘　　要：以原位试验和室内试验结果为基础,结合现场监测数据,并通过PLAXIS 3D有限元建模软件对基坑支护结构进行建模分析,对SMW工法桩基坑支护结构的变形特性及水平抗力系数的比例系数m值进行反演分析,最终得到符合该地区实际情况的土层水平抗力系数的比例系数m值。Based on the results of in-situ test and laboratory test results,combined with field monitoring data,modeling and analysis of foundation pit supporting structure by PLAXIS 3D finite element modeling software,the deformation characteristics and the proportional coefficient m value of horizontal resistance coefficient of pile foundation pit support structure by SMW method are back analyzed,finally,the proportional coefficient m value of soil layer level resistance coefficient conforming to the actual situation in this area is obtained.

关 键 词：软土 基坑 水平抗力系数 M值 有限元 反演分析 

分 类 号：TU7[建筑科学—建筑技术科学]