长江漫滩区长距离管线开挖对地铁隧道影响分析  

Analysis of the Impact of Long-distance Pipeline Excavation on Subway Tunnels in the YangtzeRiver Floodplain Area

作　　者：谭丽华 李旭光 TAN Li-hua;LI Xu-guang(Beijing Urban Engineering Design&Research Institute Co.,Ltd.,Nanjing 210006,China)

机构地区：[1]北京城建设计发展集团股份有限公司,南京210006

出　　处：《价值工程》2025年第9期119-121,共3页Value Engineering

摘　　要：以南京长江漫滩区与地铁盾构区间同路由平行走向且平面交叉的管线沟槽开挖为依托,结合工程地质条件、沟槽与地铁盾构隧道的空间关系等多方面因素,研究长江漫滩区复杂地层中地铁盾构隧道上方长距离管线沟槽开挖的关键设计及施工方案,并从支护结构、基坑开挖、地下水处理等方面对设计方案进行优化。同时采用有限元软件从二维、三维等方面进行沟槽施工全过程对地铁盾构隧道的影响分析,为后续类似工程的研究及设计提供参考。Based on the excavation of pipeline trenches in parallel and intersecting with the subway shield tunnel section in the Yangtze River floodplain area of Nanjing,combined with various factors such as engineering geological conditions,spatial relationship between trenches and subway shield tunnels,the key design and construction schemes for long-distance pipeline trench excavation above subway shield tunnels in complex strata of the Yangtze River floodplain area are studied,and the design schemes are optimized from the aspects of support structure,foundation pit excavation,and groundwater treatment.At the same time,we use finite element software to analyze the impact of the entire process of trench construction on subway shield tunnels from two-dimensional,three-dimensional and other aspects,providing reference for the research and design of similar projects in the future.

关 键 词：长江漫滩区 长距离管线 地铁盾构隧道 有限元 变形 

分 类 号：U231[交通运输工程—道路与铁道工程]