基于层次分析法的铁路岩溶隧道突水风险评价  

Evaluation of Water-inrush Risks of Karst Tunnel with Analytic Hierarchy Process

作　　者：沈祥明[1] 刘坡拉[1] 汪继锋[1] 

机构地区：[1]中铁第四勘察设计院集团有限公司,武汉430063

出　　处：《铁道工程学报》2010年第12期56-63,共8页Journal of Railway Engineering Society

摘　　要：研究目的:基于层次分析法的铁路岩溶隧道突水风险评价,是将岩溶隧道突水风险因素定量化,通过数学运算计算出各风险因素相对于突水风险评估总目标的排序权重,并比较各风险因素之间权重大小,用于评价不同水文地质条件的岩溶隧道或岩溶隧道不同地段突水的风险性。研究结论:应用层次分析法对铁路岩溶隧道突水风险进行评价,解决了因人而异、人的主观性带来的偏差。以宜万铁路齐岳山隧道为例,论证了隧道得胜场地下河槽谷段及进口山地斜坡段分别为突水风险极高、高度地段,基本符合该隧道掘进过程中突水状况。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 inferior 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.

关 键 词：岩溶隧道 突水 风险 层次分析 评价 

分 类 号：U456.33[建筑科学—桥梁与隧道工程]