人民长江2024，Vol.55Issue(6)：182-187,6.DOI:10.16232/j.cnki.1001-4179.2024.06.025
敞开式TBM开挖隧洞围岩变形安全评价方法及应用
Research on safety evaluation method for surrounding rock deformation of open TBM excavation tunnel and application
摘要
Abstract
When excavating a tunnel by TBM encounters geological disasters,such as large deformation,it usually poses risks such as jamming or limit intrusion.The research on safety evaluation of surrounding rock deformation during TBM excavation has an important practical significance in reducing the risk of jamming or limit intrusion.This paper analyzed the deformation charac-teristics of open TBM excavation tunnels,and established safety evaluation indicators and methods for deformation of open TBM excavation tunnels.By using three-dimensional numerical simulation and on-site monitoring of deformation,the deformation of surrounding rock in the shield zone and after the shield can be obtained,so we can achieve safety discrimination of deformation in open TBM excavation tunnels.Engineering applications in Xianglushan tunnel in Central Yunnan Water Diversion Project show that the proposed method can effectively identify the safety of deformation under different support schemes,thereby providing a ba-sis for real-time adjustment of support schemes during open TBM tunnel construction.关键词
TBM/围岩变形/安全评价/卡机/侵限/香炉山隧洞/滇中引水工程Key words
TBM/surrounding rock deformation/safety evaluation/TBM jamming/limit intrusion/Xianglushan tunnel/Cen-tral Yunnan Water Diversion Project分类
建筑与水利引用本文复制引用
刘登学,孔勇斌,寇甲兵,黄书岭,张雨霆..敞开式TBM开挖隧洞围岩变形安全评价方法及应用[J].人民长江,2024,55(6):182-187,6.基金项目
云南省重大科技专项计划项目(202002AF080003) （202002AF080003）
长江科学院创新团队资助项目(CKSF2021715/YT) （CKSF2021715/YT）
中央级公益性科研院所基本科研业务费项目(CKSF2021457/YT) （CKSF2021457/YT）
