基于荷载结构法的冻结壁内力与变形研究  

Research on internal force and deformation of frozen wall based on Load structure method

作　　者：张帅伟 李顺群 程学磊[3] 张丙坤 杨长松 邢鹤遥 ZHANG Shuaiwei;LI Shunqun;CHENG Xuelei;ZHANG Bingkun;YANG Changsong;XING Heyao(School of Civil Engineering,Tianjin Chengjian University,Tianjin 300384,China;Key Laboratory of Soft Soil Characteristics and Engineering Environment,Tianjin Chengjian University,Tianjin 300384,China;School of Civil Engineering,Zhongyuan University of Technology,Zhengzhou 450007,China;China Energy Construction Urban Construction Group Company Limited,Tianjin 300384,China;Tianjin Branch,China Construction Eighth Engineering Division Com pany Limited,Tianjin 300452,China)

机构地区：[1]天津城建大学土木工程学院,天津300384 [2]天津城建大学天津市软土特性与工程环境重点实验室,天津300384 [3]中原工学院建筑工程学院,河南郑州450007 [4]中国电建市政建设集团有限公司,天津300384 [5]中国建筑第八工程局有限公司天津分公司,天津300452

出　　处：《建井技术》2024年第2期90-94,共5页Mine Construction Technology

基　　金：国家自然科学基金(41877251);天津市重点研发计划科技支撑重点项目(19YFZCSF00820);天津市研究生科研创新项目资助(No.2022SKYZ329)。

摘　　要：为研究冻结壁的承载能力与安全性,以天津某地铁出入口为例,基于荷载结构法建立了在围岩压力作用下的三维数值模型并进行了计算,分析在围岩荷载作用下冻结壁的内力与变形。结果表明:冻结壁在围岩压力作用下,上部跨中位置出现了应力集中分布,最大应力为0.518 MPa,最大位移变形为7.284 mm。In order to study the bearing capacity and safety of the frozen wall,taking the entrance and exit of a subway in Tianjin as an example,a three-dimensional numerical model under the pressure of the surrounding rock was established based on the load structure method and calculated,and the internal force and deformation of the frozen wall under the load of the surrounding rock were analyzed.The results showed that under the action of the pressure of the surrounding rock,the stress concentration of the upper span of the frozen wall was concentrated,the maximum stress was 0.518 MPa,and the maximum displacement deformation was 7.284 mm.

关 键 词：冻结法 荷载结构法 内力计算 三维数值模拟 

分 类 号：U231[交通运输工程—道路与铁道工程] TD265.3[矿业工程—矿井建设]