综合机械化采煤工作面液压支架下行回撤技术实践

Comprehensive mechanized mining face downward retracement technology practice

张辰煤矿西三采2#/层右六综采工作面,上巷由于受采深矿压大,造成上巷断面缩小,如果按传统方式进行回撤,上巷进行恢复,不但使用大量的人力和物力,而且回撤时间长。针对以上的不足,探索一种回撤新模式以适应回撤条件的变化,采用了从上向下回撤技术,积累了一些宝贵的经验。

this paper introduces Zhang Chen coal mine west collected three 2 #/layer right six fully mechanized working face, the lane due to deep mining pressure big, cause the lane cross section shrinking, if according to the traditional way to retreat, lane on recovery, not only with a lot of manpower and material resources, and the long retreat, aiming at the shortcomings of the above, explore a new pattern to adapt to the retreat retreat conditions change, the dropping down from the technology, accumulated some precious experience.