石太线路基边坡危岩落石整治方案研究

石太线危岩落石病害地段经常有危石坠落至线路,严重威胁行车安全。通过综合比较各种整治危岩落石的工程措施,最终确定因地制宜的安设高强度金属柔性防护网进行病害整治。并通过对一处典型病害工点进行三维激光扫描、落石轨迹模拟分析、落石最大速度和动能计算等研究,详细阐述金属柔性防护网的合理选型以及防护方案确定的方法。

Research on Treatment Scheme of Perilous Rocks and Falling Rocks for Protecting Subgrade Slope of Shijiazhuang-Taiyuan Railway

In the perilous rocks and falling rocks zones along Shijiazhuang-Taiyuan Railway,there are often perilous rocks falling to the railway line,posing a threat to the operation safety of railway. For thisreason,by comparison with various treatment measures of perilous rocks and falling rocks,and by adjusting measures to local condition,the flexible metal safety netting system( SNS) was employed to resist the falling rocks. Furthermore,in combination with the research for a typical rock-falling worksite on several issues such as three-dimensional laser scanning,simulation analysis of falling rock's trace, calculation of maximum velocity and kinetic energy of falling rocks,etc.,the paper illustrated how to reasonably select the SNS and how to determine the protection scheme.