砂化白云岩隧洞地质灾害风险分级研究  

Study on risk classification of geological hazards in sandy dolomite tunnel

作　　者：米健 唐俊 代崇锐 董家兴[4] 许正波 MI Jian;TANG Jun;DAI Chongrui;DONG Jiaxing;XU Zhengbo(Yunnan Institute of Water&Hydropower Engineering Investigation,Design and Research,Kunming 650021,China;Central Yunnan Water Diversion Construction Administration Bureau,Kunming 650000,China;China Railway ERJU 1st Engineering Co.,Ltd.,Guiyang 550002,China;Faculty of Electric Power Engineering,Kunming University of Science and Technology,Kunming 650500,China;China Railway Tunnel Stock Co.,Ltd.,Zhengzhou 450003,China)

机构地区：[1]云南省水利水电勘测设计研究院,云南昆明650021 [2]云南省滇中引水工程有限公司,云南昆明650000 [3]中铁二局第一工程有限公司,贵州贵阳550002 [4]昆明理工大学电力工程学院,云南昆明650500 [5]中铁隧道股份有限公司,河南郑州450003

出　　处：《人民长江》2025年第3期134-139,145,共7页Yangtze River

基　　金：云南省重大科技专项计划项目(202002AF080003)。

摘　　要：砂化白云岩隧洞施工过程中,地质灾害频发,尤其是富水砂化白云岩隧洞施工安全风险高,严重影响了工期和投资。为了研究砂化白云岩隧洞地质灾害风险与地质环境的内在联系,以滇中引水工程玉溪段为例,采用统计分析法对砂化白云岩隧洞地质灾害案例进行了深入研究。结果表明:砂化白云岩隧洞地质灾害类型有塌方、涌突水及涌水涌砂3类;地质灾害影响因素主要为断层或挤压带、外水压力以及单位洞长集水面积等;依据孕灾地质条件,可将砂化白云岩隧洞地质灾害风险等级划分为极高、高、中等及一般4级。研究成果可为砂化白云岩隧洞选择施工处理措施以及布置隧洞线方案提供技术支撑,为砂化白云岩隧洞勘察设计、施工、管理提供参考。Geological disasters occur frequently in construction of sandy dolomite tunnels,in particular,the construction safety risk of water-rich sandy dolomite tunnels is high,which seriously restricted construction period and increased investment.In order to study the internal relationship between geological disaster risk and geological environment of sandy dolomite tunnels,taking Yuxi section of the Central Yunnan Water Diversion Project as an example,the geological disaster cases of sandy dolomite tunnels were deeply studied by statistical analysis method.The results showed that there were three types of geological disasters in the sandy dolomite tunnel,including collapse,water inrush and water and sand gushing;the main influencing factors of geological disasters were fault or compression zone,external water pressure and catchment area per unit length of the cave;according to the geological conditions of the disaster,the geological disaster risk level of the sandy dolomite tunnel was divided into four levels,extremely high,high,medium and general.The research results can provide technical support for selection of construction treatment measures and the arrangement of tunnel line schemes for sandy dolomite tunnels,and provide reference for the investigation,design,construction and management of sandy dolomite tunnels.

关 键 词：砂化白云岩隧洞 地质灾害风险 分级标准 孕灾地质条件 施工处理措施 滇中引水工程 

分 类 号：TV554[水利工程—水利水电工程] P694[天文地球—地质学]