摘要
随着轨道交通建设的发展,已建地铁车站对规划线路区间隧道下穿的预留有多种形式。文章结合成都不同的车站预留下穿条件和下穿方式进行研究与探讨,对直径8.3m盾构隧道下穿既有运营车站的监测值进行归纳总结,对车站预留下穿条件进行分析,并提出合理化建议,为后续隧道下穿既有运营车站的安全控制及车站预留规划隧道下穿条件提供参考。
With the development of rail transit construction,there are various forms of reservation for tunnel underpass in planned line sections at existing metro stations.This article studies and explores the reserved underpass conditions and underpass methods for different stations in Chengdu.Summarize the monitoring values of the 8.3m diameter shield tunnel passing through existing metro stations.Analyze the reserved underpass conditions at the station and propose reasonable suggestions.Provide reference for the safety control of tunnel underpass through existing operating stations and the reserved planning of tunnel underpass conditions for stations in the future.
作者
张庆
ZHANG Qing(China Railway Eryuan Engineering Group Co.,Ltd.,Chengdu 610031,China)
关键词
隧道工程
下穿地铁车站
车站预留隧道下穿条件
车站内力重分布
既有线沉降
tunnel engineering
underpass metro stations
reserved tunnel underpass conditions at stations
redistribution of station internal forces
settlement of existing lines
