鸿图嶂隧道并行水库段隧道围岩导水特征及工程影响分析  

Analysis of water conductivity characteristics of tunnel surrounding rock and its engineering impact in the parallel reservoir section of Hongtuzhang tunnel

作　　者：於开炳 师晴 程小勇 李剑 Yu Kaibing;Shi Qing;Cheng Xiaoyong;Li Jian(Hubei Communications Planning and Design Institute Co.,Ltd.,Wuhan Hubei 430051,China;Guangdong Transportation Planning and Design Research Institute Co.,Ltd.,Guangzhou Guangdong 510440,China)

机构地区：[1]湖北省交通规划设计院股份有限公司,湖北武汉430051 [2]广东省交通规划设计研究院集团股份有限公司,广东广州510440

出　　处：《山西建筑》2024年第17期160-163,192,共5页Shanxi Architecture

摘　　要：水库渗漏导致的隧道突涌水问题是隧道穿越水库并行段需重点关注的水文地质问题,查明隧道围岩导水特征及其与水库之间的水力联系是评价水库对隧道工程影响的关键。以鸿图嶂隧道为例,综合采用钻探、孔内测温与连通试验相结合的方法,揭示隧道围岩裂隙含水介质类型及组成,分析了油鱼坝断裂与飞泉水库的空间关系,探讨了油鱼坝断裂及围岩裂隙含水介质的导水性能。结果表明:油鱼坝断裂为飞泉水库与鸿图嶂隧道之间的重要导水通道,在隧道建设过程中可能对隧道施工运营带来不良影响。The problem of sudden water surge in tunnels due to reservoir seepage is a hydrogeological issue that requires special attention during the tunnel’s passage through the parallel section of a reservoir.Identifying the water-conducting characteristics of the tunnel surrounding rock and its hydraulic connection with the reservoir is crucial for evaluating the impact of the reservoir on tunnel engineering.This paper takes the Hongtuzhang Tunnel as a case study and employs a comprehensive approach combining drilling,in-hole temperature measurement,and connectivity testing to reveal the types and composition of fracture aquifers in the tunnel surrounding rock.It analyzes the spatial relationship between the Youyuba Fault and Feiquan Reservoir and discusses the water-conducting properties of the Youyuba Fault and the fracture aquifers in the surrounding rock.The results indicate that the Youyuba Fault serves as an important water-conducting pathway between the Feiquan Reservoir and the Hongtuzhang Tunnel,which may have adverse effects on the construction and operation of the tunnel during its construction process.

关 键 词：断层沟通作用 鸿图嶂隧道 飞泉水库 

分 类 号：TU997[建筑科学—市政工程] U451.2[建筑科学—桥梁与隧道工程]