铁路软弱围岩隧道施工安全风险管理技术与实践

铁路大断面软弱围岩隧道施工具有隐蔽性、施工周期长、施工技术复杂性、地层条件不可预见性、周围环境的不确定性等显著特点,加大了隧道施工安全风险管理的难度.以新建贵广铁路客运专线软弱地质围岩隧道为工程实例,重点论述了铁路大断面软弱地质围岩隧道施工安全风险的主要特点及预控措施,通过对软弱地质围岩大断面隧道施工安全潜在风险的分析...

Construction Safety Risk Management Technique and Practice of Soft Rock Railway Tunnel

Construction of a large cross section soft rock railway tunnel has the characteristics of hidden nature,long working period,complex construction technology,unpredictability of formation conditions,uncertainty of surrounding environment and other notable features,which increase the difficulty of risk management of tunnel construction.In this paper,the weak rock tunnel of passenger line of Guiguang Railway is taken as an example,the main characters and precaution measures for safety risk of construction of a large cross section soft rock railway tunnel were expounded.The precaution measures for construction safety risk control are based on analysis of potential security risk.The importance of emergency rescue system for accidents in tunnel is presented to ensure quality,safety and schedule control of tunnel construction.The conclusion from this study provides a useful reference for the future design and construction of similar projects.