铁路通过小型采空区的综合勘察与线路优化

在地形地质条件复杂地段,地质选线对铁路工程具有重要的意义。以某铁路线路通过一小型采空区为例,在线路无法绕避的情况下,采用综合手段对采空区进行探查。先在现场地质测绘调查的基础上针对性布置物探测线探查,再根据探查结果合理安排钻探对探查结果进一步修正。通过对资料的综合分析,详细绘制采空区范围和规模,对线路方案进行优化调整。现场施工表明综合勘察手段对线路优化具有良好效果。

Integrated Survey and Route Optimization of Railway Line Passing through Small Goaf

In the region with complex geological condition,it is important to carry out geological route selection for railway engineering.In this paper,a railway line passing through a small goaf was taken as an example.Under the condition that the line was unable to bypass the small goaf,the means of integrated survey was used to survey the goaf.First,on the basis of the initial geological mapping,the geophysical prospecting method was used with targeted prospecting lines,and then the geological drilling was arranged to perfect the information of the goaf prospected.Afterwards,through comprehensive analysis on survey data,the detailed scope and scale of the goaf was mapped out,and the route scheme was adjusted and optimized.Practice of construction shows that the means of integrated survey is useful for optimizing the route.