岩土力学Issue(5)：1375-1382,8.
浅埋隧道塌方地质灾害成因及风险控制
Causes of geological hazards and risk control of collapse in shallow tunnels
摘要
Abstract
Collapse is one of the typical common geological hazards during the construction of shallow tunnels. Real-time control conducted using dynamic evaluation model and risk aversion is an effective way to ensure the safety of tunnel construction and can be fallen into the following procedures: ①Based on the geological conditions in and out of the tunnel, the risk factors of collapse are analyzed and a fuzzy analytic hierarchy process (FAHP) model of risk assessment for tunnel collapse is proposed. Static evaluation of collapse is then conducted using the risk environment and the proposed model. ②The risk environment is updated based on the actual geological conditions. Furthermore, dynamic evaluation is carried out according to the risk environment, meteoric water, excavation method, support measures and monitoring measurement. ③A risk aversion method is proposed using the results of dynamic evaluation. The purpose of risk reduction can be realized through the optimization of construction scheme. The presented approach has been successfully applied to the construction of Duanjiawu tunnel to avoid collapse, which can provide references to the risk assessment of other similar engineering cases.关键词
浅埋隧道/地质灾害成因/风险分析/动态评估/风险控制Key words
shallow tunnel/causes of geological hazards/risk analysis/dynamic evaluation/risk control分类
交通工程引用本文复制引用
周宗青,李术才,李利平,隋斌,石少帅,张乾青..浅埋隧道塌方地质灾害成因及风险控制[J].岩土力学,2013,(5):1375-1382,8.基金项目
国家重点基础研究发展计划(973)项目(No.2013CB036000)；国家自然科学基金重点资助项目(No.51139004)；中国矿业大学深部岩土力学与地下工程国家重点实验室开放基金项目(No. SKLGDUEK1105)；国家自然科学基金项目(No.51009085)；山东大学研究生自主创新基金项目(No. yzc12137)。 （973）
