Abstract:Research purposes: The evaluation of water—inrush risk of railway karst tunnel with the analytic hierarchy process is to quantify the factors of water—inrush risks,work out relatively superior or illf:erior ordering weight through the calculation of various risk factors relate to the total goal of water—inrush risk evaluation,and compare the weight among the various factors to evaluate the water—-inrush risks of karst tunnel under different hydrogeological conditions or in different sections of karst tunnel.
Research conclusions:The evaluation of water——inrush risks of karst tunnel with the analytic hierarchy process can overcome the deviations caused by man"s subjectivity.This evaluation method was used for evaluation of the water—inrush risks of the underground river channel in Deshengchang and the slope in entry area of Qiyue Mountain Tunnel of Yichang—Wanzhou Railway.It was concluded the water—inrush risks of these areas were high and the evaluated results basically corresponded to the water—inrush conditions during the tunnelling.
The Fourth Survey and Design Group Co,Ltd of China Railway.Research &Development Report OH Investigation and Synthetic Regulation Technology of Deep Karst Tunnel[R].Wuhan:The Fourth Survey And Design Group Co,Ltd of China Railway,2010.
[4]韩行瑞.岩溶隧道涌水及其专家评判系统[J].中国岩溶,2004(3):214—217.
Han Xingrui.Water—inrush&Professional Judgement System of Kasrst Tunnel[J].China Karst,2004(3):214-217.
The Fourth Survey and Design Group Co,Ltd of China Railway. General Report Oll Special Geology Investigation of Large and Long Karst Tunnel from Yiehang To Wanzhou[R].Wuhan:The Fourth Survey and Design Group Co,Ltd of China Railway,2004.
Special Press of Ministry of Geology and Mineral Resources of P.R.China.Researches on Evaluation and Exploit of Luota Karst&Water Resources[R].Research Group OH Luota Karst Geology.Beijing: Geology Press,1984.
Du Yuben,etc.Research on Jiezipo Syneline Karst Water System and Hazard of Wataer—gushing—and—bursting in Tunnel[J].Journal of Railway Engineerring Society,2009(12):60-64.