基于MIDAS GTS分析地铁运行振动对地铁车站沉降影响  

Analysis of the influence of train vibration on the settlement of metro station based on MIDAS GTS

作　　者：古丽革乃·依力哈木 周美均 郑欣欣 梅钢[1] Gulgina·Yilihamu;Zhou Meijun;Zheng Xinxin;Mei Gang(College of Engineering and Technology,China University of Geosciences,Beijing 100083,China)

机构地区：[1]中国地质大学(北京)工程技术学院

出　　处：《山西建筑》2019年第11期104-106,共3页Shanxi Architecture

基　　金：国家自然科学基金青年科学基金项目(编号:11602235);大学生创新性试验计划项目(编号:201811415113)~~

摘　　要：为探明地铁运行振动对地层的影响,以北京的地铁站为例,建立地铁站的结构三维模型及其所在地层的地质三维模型,在此基础上利用有限元分析软件在时域内对地铁区间隧道及其周围土体这一结构复合系统进行动力分析,得出各个控制点由地铁振动引起的位移分量值等。以此来研究地铁在运行过程中可能产生的安全问题,比如地铁长期运行产生的振动会不会引起地层沉降及开裂等问题。此方法模拟了列车的振动效应,探究了地铁振动对地层的影响及其响应,为保证地铁在后期使用的安全性的控制问题,保证地铁长期安全运行提供了一定的理论支撑,有重要的工程意义和社会意义。To discover the impact of the vibration of the subway to the formation of the strata,in the case of Beijing’s subway station,to establish a three-dimensional model of the subway station and the geological 3D model of its location,the finite element analysis software has been used to analyze the structure of the subway system in the time zone and to analyze the structure of the structure of the surrounding earth,and to get the displacement component values of each control point caused by subway vibration. This is to study the safety issues that the subway can produce during the course of running,like whether the vibration from the long run of the subway can cause the problem of the formation of sedimentation and cracking. This method simulates the vibration effect of trains,explores the influence of subway vibration on strata and its response,and provides certain theoretical support for ensuring the safety control of subway in the later period and the long-term safe operation of subway,which has important engineering significance and social significance.

关 键 词：空间有限元模型 地铁运行 地层 

分 类 号：U231.4[交通运输工程—道路与铁道工程]