Risk-based construction safety management research for railway mountain tunnels with unfavorable geology
Unfavorable geology such as rock piles,large soft rock deformations,karst and water-rich faults,coal seams,high geostress,etc.have a great impact on tunnel construction safety and pose a great threat to the safety of construction personnel and increase project costs.Conducting research on risk-based construction safety management for railway mountain tunnels with challenging geological conditions is of paramount importance to ensure the safety of tunnel construction.By identifying risk control points of unfavorable geologies in railway mountain tunnel construction projects,this article combines the safety management practice used during the construction of the Zhengzhou-Chongqing high-speed railway Xiangjiawan tunnel,and takes a specific water oozing incident disposal process as a case study.In doing so,it summarizes the safety management achievements of these projects,such as the usage of over-advance forecasting and perimeter rock monitoring and measurement,hazardous gas monitoring,etc.,and utilizes over-advance geological forecasting by level-guided over-advance construction,giving full play to the role of a risk management platform.It then formulates targeted engineering measures,and studies and proposes the establishment of a safety management system,which aims to strengthen safety process controls,improve the level of informatization of safety risk management,and enhance capabilities in major risk prevention,resolution,and emergency response.
NETL
NSTL
万方数据
维普
