深部双翼开采大巷维护分析

Maintenance Analysis of Deep Double-wing Mining Roadway

随着中国煤矿进入深部开采时代,矿井的地应力明显增加,煤层开采对岩层的扰动也增大,这会使得巷道因承受较大的动载作用而出现变形加剧的情况。为了提高煤层开采的效率,很多煤矿的工作面采用双翼布置方式。在深部条件下,双翼开采会使得巷道的变形加剧,影响巷道的寿命。为此,需要对双翼开采时的大巷进行维护。分析了双翼开采条件下大巷变形的特点,并结合实际情况探讨了大巷的维护措施,可以为深部双翼开采大巷的维护提供一定的参考。

With China's coal mines entering the era of deep mining,the ground stress of the mine increases significantly,and the disturbance of coal mining to the strata also increases,which will make the roadway deformation intensified due to the greater dynamic load.In order to improve the efficiency of coal mining,the working face of many coal mines adopts double-wing arrangement form.In the deep condition,the deformation of roadway will be aggravated by double-wing mining,which will affect the life of roadway.Therefore,it is necessary to maintain the main roadway in the double-wing mining.This paper analyzed the characteristics of roadway deformation under the condition of double-wing mining,and probed into the maintenance measures of roadway combined with the actual situation,which can provide some reference for the maintenance of deep double-wing mining roadway.