中梁山煤矿开采煤层属急倾斜近距离煤层群。地质构造复杂、具有煤与瓦斯突出和自然发火危险,工作面瓦斯涌出量大,煤尘飞扬严重,开采和作业环境条件都异常困难。 历年来,曾采用过倒台阶,正台阶、伪斜柔性掩护支架、水平分层、伪倾斜走向长壁矸石充填等采煤法。其中、解放层工作面主要使用垮落式倒台阶和正台阶采煤法,其余煤层今后将逐步过渡到矸石充填采煤法开采。 Coal mining in Zhongliangshan Coal Mine is a group of steeply inclined near coal seams. Geological structure is complex, with the danger of coal and gas outburst and spontaneous combustion, gas emission in the work face is large, coal dust flying serious, mining and operating environmental conditions are extremely difficult. Over the years, have adopted over the steps, positive steps, false oblique flexible shield support, the level of stratification, pseudo-inclined longwall waste rock filling and other mining methods. Among them, the working face of the Jiefangjie mainly uses the caving downstairs and the positive step mining method, and the remaining coal seams will gradually transition to the mining of waste rockfill mining method in the future.