摘要
岩溶地区地质条件复杂,在隧道施工过程中易发生涌水、涌泥、塌方等灾害。针对地质勘探、监控量测、超前地质预报、超前钻探、地下水监测等单项技术在岩溶灾害风险预测方面的不足,根据溶洞与开挖面的位置关系、补给水源、岩溶发育程度及规模、埋深、围岩级别这5个主要的致灾因子,提出岩溶隧道灾害风险预测模型。对5个致灾因素监测结果进行分析,得出灾害风险等级,并据此提出防灾预案和拟定工程措施,以提高岩溶隧道施工安全性。
Karst area has complicated geologic conditions, during tunnel construction, there may often bedisasters like water burst, mud burst or cave in, etc. , Considering the shortcomings of single technology,such as geologic survey, monitoring/measuring, advance geologic prediction, advance drilling, underwatersupervision, in Karst disaster prediction, this paper suggests the Karst tunnel disaster prediction model basedon 5 major disaster factors of position relationship between Karst cave and excavation face, supplementarywater resources, Karst development degree and scale, buried depth and surrounding rock level. Aftermonitoring and analyzing the 5 disaster factors, we obtained the disaster risk degree and suggest anti -disaster solution and construction measures, to meliorate the safety in Karst tunnel construction.
出处
《公路交通技术》
2016年第4期124-127,共4页
Technology of Highway and Transport
关键词
隧道
岩溶
灾害预测
风险
tunnel
Karst
disaster prediction
risk
