车辆载重对煤矿采空区残余下沉系数的影响

Analysis of the Residual Subsidence Factor under Vehicle Loads in Mine Subsidence Area

本文以焦作某采空区地层结构特征为例,采用数值模拟方法,分析不同车辆载重对采空区路面再沉降值的影响。然后根据不同车辆载重下路面最大沉降值计算该采空区残余下沉系数,进而拟合出车辆载重与残余下沉系数之间的关系曲线。本文分析结果对煤矿采空区残余变形值的预计及载重车辆采空区安全行驶具有重要的指导意义。

Taking the stratum structure characteristics of a goaf in Jiaozuo as an example,this paper analyzed the in⁃fluence of different vehicle loads on the re-settlement value of goaf pavement by using numerical simulation method.Then the residual subsidence coefficient of the goaf was calculated according to the maximum settlement value of the pavement under different vehicle loads,and then the relationship curve between vehicle load and residual settlement coefficient was fitted.The analysis results of this paper have important guiding significance for the prediction of resid⁃ual deformation value of coal mine goaf and safe driving of heavy vehicles in goaf.