作　　者： ; ; ;

机构地区： 太原理工大学矿业工程学院采矿工艺研究所

出　　处： 《煤炭技术》 2014年第5期138-141,共4页

摘　　要： 以漳村煤矿23采区西下山进风巷道为研究背景,分析了顶板厚度对巷道稳定性的影响因素,并采用FLAC3D数值模拟方法,研究对比不同顶板厚度条件下巷道底鼓量、顶板下沉量、两帮移近量等围岩的破坏情况,发现顶板厚度与巷道变形成正比例关系,与巷道稳定性成反比例关系。同时对比了直接顶和老顶在影响巷道稳定性方面的差别,发现较之老顶,直接顶在影响巷道变形方面更为重要。 Based on 23 panel west down intake airway of Zhangcun Coal Mine, and shows the factors of the effect of roof thickness on the roadway stability, by means of FLAC3 Dnumerical simulation to study and compare to the destruction of the surrounding rock under the conditions of different thickness of top plate, including the size of the floor heave, the roof and the sidewall convergent, the research shows that the thickness of top plate is proportional to the deformation of roadway and it's inversely proportional to the stability of surrounding rock. Comparing the difference in effect of the immediate roof and main roof on the roadway stability, the research shows the direct roof is more important to roadway deformation effect.

关 键 词： 顶板厚度 巷道变形 数值模拟

领　　域： [矿业工程]