高铁压覆煤炭资源开采地表变形分析

Analysis of Surface Deformation of Coal Resource Mining under High Speed Railway

由于经济建设对交通运输体系的要求不断提高,道路网越来越密集,近几年高铁的快速发展为经济建设提供了良好的条件。铁路压煤问题成为"三下"采煤新的问题,开采这部分矿产资源成为生产中亟待解决的问题。本文通过FLAC模拟随工作面推进地表变形情况,得到地表位移和开采距离的关系,较准确地预测地表沉降规律。并以此为基础,分析了列车荷载作用下地表的变形规律,这样既有利于保证铁路工程在开采条件下的稳定,又可以充分利用地下矿产资源、解决制约煤炭产业发展后备资源不足的问题。

Due to the increasing demands of the economic construction on the transportation system and the increasing density of road network,the rapid development of high-speed railway in recent years has provided favorable conditions for economic construction.The problem of coal mining under the railway is a new problem of coal mining,and the mining of this mineral resources becomes an urgent problem to be solved in production.In this paper,the relationship between surface displacement and mining distance is obtained through FLAC simulation with the surface deformation in the working face,and the surface subsidence law is predicted more accurately.And on this basis,the paper analyzes the deformation law of surface under train load,which not only can ensure the stability of railway engineering under the mining condition,but also can make full use of underground mineral resources,solving the problem of shortage of reserve resources in coal industry development.