地铁矿山法隧道揭露岩溶施工处理技术研究  

Research on Construction and Treatment Technology for Exposure of Karst in Metro Tunnel by Mine Method

作　　者：李辉 刘凯 陈兵[2] 刘远明[3] LI Hui;LIU Kai;CHEN Bing;LIU Yuanming(Guiyang Urban Rail Transit Group Co.,Ltd.,Guiyang Guizhou 471000,China;Southwest Jiaotong University,Chengdu Sichuan 610031,China;Guizhou University,Guiyang Guizhou 471000,China)

机构地区：[1]贵阳市城市轨道交通集团有限公司,贵州贵阳550009 [2]西南交通大学,四川成都610031 [3]贵州大学,贵州贵阳550009

出　　处：《交通节能与环保》2022年第5期169-173,186,共6页Transport Energy Conservation & Environmental Protection

基　　金：国家自然科学基金(51578461)。

摘　　要：目前,国内现有地质勘察手段并不能完全探明隧道线路周边的溶洞位置及规模,因此隧道在实际施工中仍可能开挖揭露岩溶,而岩溶的揭露往往伴有突水、突泥发生,因而受到工程及研究人员重视。本文依托贵阳地区某隧道施工揭露岩溶的工程实际,对隧道洞内塌方及上方地表塌陷等原因进行了分析,根据物探及后期现场钻孔取样确定了岩溶发育情况并针对性地设计了处理方案,经工程检验岩溶处理措施合理有效。At present,the existing domestic geological survey methods cannot fully ascertain the location and scale of the karst caves around the tunnel line. Therefore,the tunnel may still be excavated to expose the karst during actual construction,and the exposure of karst is often accompanied by water and mud inrush,which is valued by engineering and research personnel. Based on the actual construction of a tunnel in Guiyang to expose the karst,this paper analyzes the cause of the surface collapse above the tunnel,determines the development of the karst based on geophysical prospecting and later on-site drilling sampling,and designs the treatment plan accordingly. Tested by the project the karst treatment is reasonable and effective.

关 键 词：城市地铁 岩溶地层 矿山法 地表塌陷 处置措施 

分 类 号：U455.49[建筑科学—桥梁与隧道工程]