岩土工程学报2011，Vol.33Issue(11)：1714-1725,12.
基于风险动态评估与控制的岩溶隧道施工许可机制
Construction permit mechanism of karst tunnels based on dynamic assessment and management of risk
摘要
Abstract
Jigongling Tunnel of Fanba Expressway passes through strong karst aquifer of Cambrian Shilongdong Fm,and water table is about 150~200 m above the tunnel floor.Large-scale water inrush and mud irruption are easy to happen.In order to control construction hazards,the karst development characteristics of the tunnel site are studied.The risk surroundings,factors and dynamic management for water inrush and mud irruption of the karst tunnel are analyzed.Preliminary,secondary and dynamic risk assessment models based on the comprehensive weights and the expert scoring method are established.A new management mechanism of construction risk,which is a kind of construction permit mechanism based on risk assessment of water or mud inrush,is developed and successfully carried out for the first time.This mechanism not only can be used for the risk management of karst tunnels,but also for other kinds of engineering constructions.It is successfully applied in the karst risk management of Jigongling Tunnel on the line of Fanba Expressway,and it is being employed to manage the construction risk of karst,and the large deformation of soft rock and collapse in Yichang-Badong Expressway.关键词
隧道/岩溶发育特征/施工许可机制/突水突泥/风险评估Key words
tunnel/karst development characteristics/construction permit mechanism/water inrush and mud irruption/risk assessment分类
交通工程引用本文复制引用
许振浩,李术才,李利平,陈军,石少帅..基于风险动态评估与控制的岩溶隧道施工许可机制[J].岩土工程学报,2011,33(11):1714-1725,12.基金项目
国家自然科学基金项目 （）
交通部西部交通建设科技项目 （）
山东大学研究生自主创新基金项目 （）
