人民长江2025，Vol.56Issue(3)：134-139,145,7.DOI:10.16232/j.cnki.1001-4179.2025.03.017
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
摘要
Abstract
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 or-der 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 dis-asters were fault or compression zone,external water pressure and catchment area per unit length of the cave;according to the geo-logical conditions of the disaster,the geological disaster risk level of the sandy dolomite tunnel was divided into four levels,ex-tremely 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,de-sign,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Key words
sandy dolomite tunnel/geological disaster risk/grading standard/disaster-pregnant geological environment/construction treatment measures/Central Yunnan Water Diversion Project分类
建筑与水利引用本文复制引用
米健,唐俊,代崇锐,董家兴,许正波..砂化白云岩隧洞地质灾害风险分级研究[J].人民长江,2025,56(3):134-139,145,7.基金项目
云南省重大科技专项计划项目(202002AF080003) （202002AF080003）
