富水岩溶地区隧道涌水预测与施工处置技术研究  

STUDY ON PREDICTION AND CONSTRUCTION DISPOSAL TECHNOLOGY OF TUNNEL WATER-INRUSH IN WATER-RICH KARST AREA

作　　者：杨洪[1] 田娇[1] 欧阳淋旭 欧雪峰 张学民[3] 曾晓辉[3] YANG Hong;TIAN Jiao;OUYANG Lin-xu;OU Xue-feng;ZHANG Xue-min;ZENG Xiao-hui(Guizhou Transportation Planning Survey and Design Institute Co.,Ltd.,550001,Guiyang,China;School of Civil Engineering Changsha University of Science&Technology,410114,Changsha,China;School of Civil Engineering,Central South University,410075,Changsha,China)

机构地区：[1]贵州省交通规划勘察设计研究院股份有限公司,贵阳550001 [2]长沙理工大学土木工程学院,长沙410114 [3]中南大学土木工程学院,长沙410075

出　　处：《建筑技术》2024年第9期1090-1093,共4页Architecture Technology

基　　金：贵州省交通运输厅科技项目(2024-121-043,2017-121-027)。

摘　　要：针对贵州某隧道施工过程中遭遇一处连通地下暗河的大型溶洞引起隧道内大规模涌水的灾害进行研究,结合水文地质情况对涌水量进行预测和分析后,现场先对岩溶水进行初步释压,后采用水泥砂浆分步回填隧道上伏溶腔以封堵岩溶出水口;进一步采用集水管引排岩溶水的方式对剩余地下水进行二次加强处理,同时将集水管与隧道外侧的泄水洞相连,二者构成一套完整的引排水系统的处治手段。采用堵排相结合的原则有效地达到涌水处置目的,确保了隧道的安全施工,可为类似地层的隧道施工提供有益的借鉴。In view of the large-scale water gushing disaster caused by a large karst cave connected with an underground river during the construction of a tunnel in Guizhou province,after predicting and analyzing the water inflow in combination with hydrogeological conditions,the karst water was initially released,and then cement mortar was used to backfill the upper cavity of the tunnel step by step to block the karst water outlet.Further,the collecting pipe is used to divert karst water to strengthen the secondary treatment of the remaining groundwater,and the collecting pipe is connected with the drainage cavern outside the tunnel,which constitutes a complete set of treatment means of drainage system.The principle of combining plugging and drainage can effectively achieve the purpose of water gushing disposal and ensure the safety of tunnel construction,which can provide beneficial reference for similar stratum tunnel construction.

关 键 词：隧道工程 富水岩溶 涌水量预测 溶洞溶腔 

分 类 号：U455[建筑科学—桥梁与隧道工程]