摘要
以广东某区间地铁隧道下穿单层工业厂房为工程背景,在ANSYS平台建立了地铁盾构施工的三维模型,再通过有限差分软件FLAC3D对不同工况下不同开挖阶段的横、纵向地表沉降进行数值模拟计算,研究了盾构隧道开挖时的空间效应和时间效应对地表沉降及周围建筑物的影响规律。同时针对上软下硬复合地层中的沉降控制技术进行研究,可为类似工程的沉降控制提供有力参考。
Based on the tunneling under factory building in Guangdong,a three-dimensional model of subway shield was established by ANSYS.The numerical simulation of transverse and vertical ground settlement in different excavation stages under different working conditions were carried out by FLAC3D software.The spatial effects and time effects of shield tunnel excavation on the surface settlement and surrounding buildings are studied.The research on the settlement control technology in composite stratum which has the upper soft layer and lower hard layer has been studied and can provide a powerful reference for the settlement control of similar projects.
作者
李鸿博
苟青松
张志飞
马淑芝
LI Hongbo;GOU Qingsong;ZHANG Zhifei;MA Shuzhi(Civil Engineering Department,Faculty of Engineering,China University of GeosciencesWuhan 430074)
出处
《工业安全与环保》
2019年第3期12-16,48,共6页
Industrial Safety and Environmental Protection
关键词
盾构隧道
数值模拟
地表变形
沉降控制
shield tunnel
numerical simulation
surface deformation
subsidence control
