地铁隧道施工与建筑物不同穿越角度的数值分析研究  

Numerical analysis of different crossing angles of subway tunnel construction and building

作　　者：谢焦焦 于广明[1] 张洋[1] 宋琨 周福强 Xie Jiaojiao Yu Guangming Zhang Yang Song Kun Zhou Fuqiang(School of Civil Engineering,Qingdao University of Technology, Qingdao 266033 ,Shangdon)

机构地区：[1]青岛理工大学土木工程学院,山东青岛266033

出　　处：《工程建设》2017年第8期28-32,共5页Engineering Construction

摘　　要：为研究地铁隧道施工不同穿越角度与上方建筑物的位置关系对建筑物沉降及其受力的影响,选取五种地铁隧道与上方建筑物不同穿越角度的工况,并利用MADIS-GTS建立隧道-建筑物三维有限元模型进行模拟。首先对比分析了不同工况对地铁隧道开挖引起建筑物沉降的影响,其次对比分析了不同工况下建筑物的受力情况。模拟结果表明:随着角度的增大,建筑物基础沉降逐渐减小;随着角度的增加,建筑物承受的最大剪力和弯矩逐渐增大。In order to study the the influence of locational relationship between subway tunnel construction at different crossing angles and building structure on building settlement and stress ,five engineering situation of subway tunnel construction and building structure at different crossing angles were selected, and a three-dimensional finite element model of tunnel-building was established to carry out simulation using MADIS - GTS. Firstly, the influence of different engineering situation on the building settlement caused by subway tunnel excavation was analyzed. Secondly, the building stress under different engineering situation was compared and analyzed. The result indicates that：As the angle increases, the settlement of building foundation decreases, and the maximum shear and bending moment of building increase gradually.

关 键 词：地铁隧道 建筑物沉降 Midas—GTS 数值模拟 内力分析 

分 类 号：U231.3[交通运输工程—道路与铁道工程] U456.3[建筑科学—桥梁与隧道工程]