综采工作面回采巷道矿压显现规律分析

Analysis on the Law of Mine Pressure Appearance in Remining Lane of Comprehensive

为了深入研究在工作面回采过程中巷道两侧的矿压变化规律,本文以某煤矿6208工作面为研究对象,对巷道的帮部和顶板的位移变形量、顶板的离层量以及巷道的应力值进行了现场监测,研究表明巷道的变形量和应力值与测点与工作面距离有关,在工作面距离测点65m处时,变形量和应力值均会开始突然增大,当距离达到22m时,应力值达到最大值。同时,研究得出62081巷道受采动影响比62082巷道更大。

In order to study the change of mine pressure on both sides of the roadway during the remining process, 6208 working face of a coal mine was taken as the research object. The displacement and deformation of the upper part of the roadway and the top plate were monitored on the spot. The study showed that the deformation and stress value of the roadway are related to the distance between the measuring point and the working surface. When the working surface is 65 M away from the measuring point, Both the deformation amount and the stress value will begin to increase abruptly. When the distance reaches 22M, the stress value reaches a maximum value. At the same time, it is found that the impact of mining on the 62081 roadway is greater than that of 62082 roadway.