宜万线隧道口边仰坡隐患分析及整治建议

Analysis and countermeasures on tunnel slope hazards on Yichang-Wanzhou railway line

宜万铁路开通运营以来发生过多次边坡溜塌、危岩落石、岩溶陷穴、隧道渗漏水等病害。对宜万线K1203+561红瓦屋隧道口边仰坡的隐患特征、病害成因进行了分析,分析认为自然风化、雨水冲刷及环境影响是造成红瓦屋隧道口边仰坡隐患的主要因素。针对隧道口边仰坡隐患提出了整治方案,现对此方案的可行性进行研讨,希望对宜万铁路以后的日常运营维护能够提供有益的参考价值。

Since the operation of Yichang-Wanzhou railway,various diseases have happened including slope collapse,unstable rock and rock-fall,karst sinkhole,tunnel leakage etc..The paper analyzes the hazards features and diseases causes of red titled house tunnel slope at the section of K1203+561 of Yichang-Wanzhou railway line,analyzes its major tunnel slope hazards factors from aspects of natural weathering,rain drop erosion and environmental influence,and puts forward corresponding countermeasures,and discusses its feasibility,with a view to provide beneficial value for normal operation and maintenance of Yichang-Wanzhou railway.