隧道穿越片岩断层破碎带塌方涌水机理及处治技术  

Mechanism and Treatment Technology of Collapse and Water Inrush in Fault Zone Schist Tunnel

作　　者：王章琼[1,2] 晏鄂川 王亚军[1] WANG Zhangqiong;YAN Echuan;WANG Yajun(School of Resource and Civil Engineering,Wuhan Institute of Technology,Wuhan, Hubei 430073,China;Faculty of Engineering,China University of Geosciences(Wuhan ),Wuhan,Hubei 430074,China)

机构地区：[1]武汉工程大学资源与土木工程学院,湖北武汉430073 [2]中国地质大学(武汉)工程学院,湖北武汉430074

出　　处：《施工技术》2018年第24期5-8,共4页Construction Technology

基　　金：湖北省教育厅科学技术研究项目(B2017058);武汉工程大学科学研究基金(k201473)

摘　　要：通省隧道ZK114+399—ZK114+377段施工过程中发生塌方、涌水、突泥灾害。通过搜集地质资料、地质超前预报、现场调查等,分析认为塌方、涌水的主要原因为:隧道围岩节理裂隙发育,片岩含有黏土矿物,遇水易软化、泥化,岩体裂隙中含有承压水,隧道开挖揭穿该富水断层破碎带。在此基础上,提出排水、清渣、清淤+打设泄水孔+小导管注浆+打设钢轨+超前管棚等综合处治方案,并提出防范此类地质灾害的建议。Collapse,water inrush and gushing mud occurred during the construction of Tongsheng Tunnel at ZKll4+399--ZKl14+377segment.Through the collection of geological data,geological advance forecast,on-site investigation and so on,the main influencing factors of collapse and water inrush of Tongsheng Tunnel are considered,there are developed joint and fracture in surrounding rock,schist contains clay minerals,it is easy to cause water softening and mudding,surrounding rock contain confined water,and tunneling debunks the rich water fault fracture zone.Based on above,comprehensive treatment scheme is proposed,namely drainage,clear slag body and mud +drilling scuppers +small duct grouting + set up rail +advance pipe roof.Then,this paper presents recommendations to prevent such geological disasters.

关 键 词：隧道工程 塌方 涌水 突泥 治理 施工技术 

分 类 号：U457[建筑科学—桥梁与隧道工程]