基于AHP的岩溶隧道涌水专家评判系统在德江隧道建设中的应用  

Application of AHP-Based Expert Evaluation System of Karst Tunnel Water Inflow in Dejiang Tunnel

作　　者：马白虎 方永桥 雷宗勇 靳俊奇 杜毓超 

机构地区：[1]贵州省公路开发有限责任公司,贵州 贵阳 [2]贵州路桥集团有限公司,贵州 贵阳 [3]山东大学岩土与结构工程研究中心,山东 济南

出　　处：《地球科学前沿（汉斯）》2023年第1期1-9,共9页Advances in Geosciences

摘　　要：基于AHP的岩溶隧道涌水专家评判系统,是研究隧道岩溶涌水风险最直接有效的方法,尤其是应用在南方岩溶地区的越岭隧道,可相对直观地了解地下水系统与隧道硐身的空间位置关系,掌握隧道与地下岩溶管道间的水力联系程度,从而判断隧道涌水的风险。本文利用“基于AHP的岩溶隧道涌水专家评判系统”技术,结合以往案例将隧道岩溶涌水风险等级划分为:Skarst ≤ 0.25为低风险区段;0.25 karst karst ≥ 0.50为高风险区段。并对德江隧道岩溶涌水的风险进行评估,并结合实际工程开挖情况进行对比分析,其结果为:ZK6 + 760~ZK7 + 200段、ZK9 + 100~ZK9 + 650段、ZK10 + 500~ZK12 + 170段和ZK8 + 150~ZK9 + 100段为低风险区段;ZK7 + 200~ZK8 + 150段为中等风险区段;ZK9 + 650~ZK10 + 500段为高风险区段。The AHP-based expert evaluation system of karst tunnel water inflow is the most direct and effective method to study the risk of tunnel karst water inflow, especially when it is applied to mountain-crossing tunnels in the karst area of southern China. It can intuitively illustrate the spatial relationship between the groundwater system and the tunnel body and help grasp the hydraulic connection between the tunnel and the underground karst pipelines, thus, determining the risk of tunnel water inflow. In this paper, we used the technology of “AHP-based expert evaluation system for karst tunnel water inflow” to grade the risk of karst tunnel water inflow into 3 levels, i.e., low-risk with Skarst ≤ 0.25, medium-risk with 0.25 karst karst ≥ 0.50. We further assessed the risk of karst water inflow in Dejiang Tunnel and compared with the actual excavation. The results are drawn as follows: sections of ZK6 + 760~ZK7 + 200, ZK9 + 100~ZK9 + 650, ZK10 + 500~ZK12 + 170 and ZK8 + 150~ZK9 + 100 have a low risk of water inflow;while sections of ZK7 + 200~ZK8 + 150 and ZK9 + 650~ZK10 + 500 are medium-risk and high-risk sections, respectively.

关 键 词：AHP 德江隧道 岩溶涌水 评判系统 

分 类 号：P3[天文地球—地球物理学] P5