施工对地铁三号线影响模拟分析  

Simulation analysis of influence of construction on Metro Line 3

作　　者：苑艳杰 YUAN Yanjie(China Railway 18th Bureau Group Co.,Ltd.,Tianjin 300222,China)

机构地区：[1]中铁十八局集团有限公司,天津300222

出　　处：《工业安全与环保》2022年第11期22-26,共5页Industrial Safety and Environmental Protection

摘　　要：以昆明地铁5号线与3号线交叉站点的施工为背景,通过有限元软件MIDAS-GTS模拟地铁5号线车站基坑开挖及结构施工,结合安全影响评估报告,分析其施工对既有地铁3号线的影响。结果表明,在该区间地铁5号线施工过程中,既有3号线省博物馆站点主体及附属区间的位移和沉降量均处于安全控制值范围内。该模拟分析对地铁交叉线路施工的位移沉降分析具有重要的指导意义。This paper takes the construction of the intersection site of Kunming Metro Line 5 and Line 3 as the background,simulates the excavation and structural construction of the station pit of Metro Line 5 through the finite element software MIDAS-GTS,and analyzes the impact of its construction on the existing Metro Line 3 by combining with the safety impact assessment report. The results show that the displacement and settlement of the main and subsidiary intervals of the existing Line 3 provincial site are within the safety control values during the construction of Metro Line 5 in this interval. The simulation analysis has an important guiding significance for the displacement settlement analysis of the construction of the metro cross line.

关 键 词：基坑 地铁车站 区间隧道 数值模拟 

分 类 号：U231.3[交通运输工程—道路与铁道工程]