高地应力条件下双护盾TBM隧道管片衬砌施工技术  

Construction Technology of Double Shield TBM Tunnel Segment Lining under High Ground Stress Conditions

作　　者：周菊兰 陈行 黄旭 ZHOU Julan;CHEN Hang;HUANG Xu(Sinohydro Bureau 10 Co.,Ltd.,Chengdu Sichuan 610036)

机构地区：[1]中国水利水电第十工程局有限公司,四川成都610036

出　　处：《四川水力发电》2023年第S02期62-64,90,共4页Sichuan Hydropower

摘　　要：随着隧道工程建设逐渐向地形地质条件复杂的西部山区延伸转移,高海拔、高埋深、高地应力的超长隧道大量涌现。鉴于目前使用的常规双护盾TBM施工衬砌管片多为借鉴软岩盾构法生产,其所承受的压力计算主要来自于浅埋覆盖层的自重。而在复杂的高地应力地质条件下,现有的管片衬砌支护体系可能会导致管片的破损、开裂、错台等质量问题出现。因此,迫切需要对常规管片及其施工工艺进行改进和加强,以适应高地应力条件下双护盾TBM隧道管片的衬砌施工。本文阐述了对高地应力条件下双护盾TBM隧道管片衬砌施工技术进行的研究。With the gradual extension and transfer of tunnel construction to the western mountainous areas with complex topography and geological conditions,a large number of ultra-long tunnels with high altitude,high burial depth,and high crustal stress have emerged.In view of the fact that the conventional lining segments of double shield TBM construction is mostly based on the soft rock shield method,and the pressure it bears mainly comes from the self-weight of the shallow buried overburden layer.Under complex high-stress geological conditions,the existing segment lining support system may lead to quality issues such as damage,cracking,misalignment,etc..Therefore,it is necessary to improve and strengthen the conventional segments and its construction technology to adapt to construction of the double shield TBM tunnel segment lining under high ground stress conditions.This article describes the research on the construction technology of double-shield TBM tunnel segment lining under high ground stress conditions.

关 键 词：高地应力 TBM 管片 衬砌 施工技术 西藏某隧道 

分 类 号：U45[建筑科学—桥梁与隧道工程] U455[交通运输工程—道路与铁道工程] U454U451