不等长放顶煤工作面快速伸长技术实践

Practice of rapid extension of unequal length top caving face

走向长壁放顶煤工作面,常因断层等地质构造的影响,在回采过程中需进行工作面伸长回采。长春兴煤业101首采放顶煤工作面采用安装部分支架、前后部运输机中部槽等伸长工作面长度的施工工艺,工期短,保证工作面正常回采,提高了资源回收率,对不等长放顶煤工作面伸长进行有效探索。

Due to the impact of geological structures such as faults, in the mining process, the strike longwall top coal caving face need to extend, using the construction technology that installed some supports, and extend the front and the rear conveyor middle slot of the first 101 top caving face in Changchun Xing coal, shortened the construction period, ensured the normal mining working face, and improved the recovery rate of resources.