复杂岩溶地质条件下城际铁路9 m级盾构机选型研究

Study on type selection of 9 m shield tunneling machine for intercity railway under complex karst geological conditions

摘要

在城市地下轨道交通工程建设过程中，合适的盾构设备选型是隧道施工的关键因素，设备关键部件的科学合理设计是盾构安全高效掘进的核心。深惠城际龙城站—龙岭工作井区间隧道沿线存在岩溶、复合地层、长距离硬岩等复杂地质问题，基于地层适应性、施工风险、工期造价等因素开展9 m级盾构机选型研究。结果表明，采用EPB/TBM双模式盾构是可行的，可为类似地层盾构设备选型设计提供一定的技术参考。

Abstract

In the process of urban underground rail transit engineering construction, suitable shield equipment selection is the key factor of tunnel construction, and the scientific and reasonable design of key equipment components is the core of safe and efficient shield tunneling. There are complex geological problems such as karst, composite strata and long distance hard rock along the tunnel between Shenhui Intercity Longcheng Station and Longling working well. Based on factors such as formation adaptability, construction risk, duration and cost, the type selection of 9 m shield tunneling machine is studied. The result show that EPB/TBM dual-mode shield is feasible, which could provide technical reference for similar formation shield equipment selection.

关键词

城际铁路 / 隧道工程 / 盾构法 / TBM / 岩溶 / 选型设计

Key words

intercity railway / tunnel engineering / shield method / TBM / karst / type selection design

Author summay

李忠伟(1976—), 男, 高级工程师, 硕士, 主要从事轨道交通管理工作。E-mail: [e-mail]