基于隧道岩溶突涌水风险评价的线位比选研究——以宜涪铁路鹤峰-宣恩段为例  

Study on Line Location Comparison Based on Risk Assessment of Karst Water Inrush in Tunnel——A Case Study of Hefeng-Xuan'en Section of Yifu Railway

作　　者：邓苏琴 黄琨 赵恒 何欣慧 彭亦农 黄宏韬 安祥龙 谭家华[2] DENG Suqin;HUANG Kun;ZHAO Heng;HE Xinhui;PENG Yinong;HUANG Hongtao;AN Xianglong;TAN Jiahua(School of Environmenta I Studies,China University of Geosciences(Wuhan),Wuhan 430078,China;China Railway No.4 Survey and Design Group Co.,Ltd.,Wuhan 430063,China)

机构地区：[1]中国地质大学(武汉)环境学院,湖北武汉430078 [2]中铁第四勘察设计院集团有限公司,湖北武汉430063

出　　处：《安全与环境工程》2023年第2期68-78,共11页Safety and Environmental Engineering

摘　　要：隧道岩溶突涌水风险是山区铁路选线阶段的重要考虑因素。以宜涪铁路鹤峰-宣恩段为例,在区域1∶1万岩溶水文地质调查的基础上,分析了该铁路段各线位方案相关的岩溶水系统特征,根据岩溶水系统特征与隧道工程的位置关系开展了隧道岩溶突涌水风险评价,并从隧道岩溶突涌水风险的影响因素出发,选取隧道穿越强岩溶含水层段占比、最大压力水头和累计最大涌水量3个定量指标,运用层次分析法和变系数法构建隧道岩溶突涌水风险综合评价指标体系,对该铁路段北、中、南3个线位方案进行了岩溶水文地质条件比选。结果表明:南线方案岩溶水文地质条件相对较好,隧道岩溶突涌水风险最低。The risk of tunnel karst water inrush is an important consideration in the railway route selection stage in mountainous areas.Taking Hefeng Xuan'en section of Yifu railway as an example,based on the regional 1:10000 karst hydrogeological survey,this article analyzes and studies the characteristics of karst water system related to;each line scheme of this section,and carries out the risk prediction of tunnel karst water inrush according to the re-lationship between the characteristics of karst water system and tunnel engineering.Starting from the influencing factors of karst water inrush risk of the tunnel,the article selects three quantitative indexes:the proportion of the tunnel crossing the strong karst aquifer section,the maximum pressure head and the cumulative maximum water in-rush,By using the analytic hierarchy process and the variable cofficient method,the article constructs a comprehen-sive evaluation system for the risk of karst water inrush,and compares the karst hydrogeological conditions of the northern,central and southern line schemes.The results show that the karst hydrogeological conditions of the southern line scheme are relatively good,and the risk of karst water inrush in tunnel is the lowest.

关 键 词：隧道突涌水 风险评价 岩溶水害 铁路选线 岩溶水文地质条件 

分 类 号：X948[环境科学与工程—安全科学] P641[天文地球—地质矿产勘探]