摘要
以深圳地铁7号线红岭北站—笋岗站区间工程为背景,通过建立三维数值模型并结合经验计算公式,研究了盾构隧道施工引起的地表沉降以及后期施工隧道对先期施工隧道的影响。基于实际工程中存在的5种工况,对比分析隧道在不同空间角度和净距下地表沉降的变化规律以及后期施工隧道对先期施工隧道的影响规律。研究结果可为今后类似工程提供一定的参考和借鉴。
Based on the tunnel construction between North Hongling Station and Sungang Station on Shenzhen Metro Line 7,a 3D numerical simulation model is established, and the em- pirical formulas are used to study the ground surface settlement caused by shield tunnel construction and the impact of the pre and post tunnel constructions. Based on 5 types of practical circumstances,the change rules of ground surface settlement and the impact rules of later tunnelling on early ttmnelling under different space angles and clear distances are compared. The main conclusion of the research could be used as a reference for similar projects in the future.
出处
《城市轨道交通研究》
北大核心
2016年第12期27-31,35,共6页
Urban Mass Transit
基金
浙江省科技计划项目(2014C33054)
关键词
地铁
叠交隧道
地表沉降
数值模拟
metro
overlapped tunnel
ground surface settlement
numerical simulation
