大倾角煤层综放工作面“降坡段”布置方式

Layout of "Descending Slope Section" for Fully Mechanized Top Coal Caving Mining face in High Inclined Seam

大倾角煤层开采过程中设备防滑、防倒是重中之重。针对新疆主焦煤公司2130平硐25112工作面的具体情况,在理论分析与实践经验相结合基础上,工作面采用"顶板—降坡段—底板"布置方式,缓解了工作面上段支架下滑失稳对下段支架的冲力和挤压,减少了工作面下部采空区冒落空间,使冒落矸石充填段上移,为安全高效生产创造了有利的条件。

To prevent the equipment sliding and fell down during the coal mining operation in the high inclined seam would be the priority of the importance.According to the certain conditions of No.25112 coal mining face in No.2130 Drift Mine of Xinjiang Coking Coal Group,base on the theoretical analysis and practical experiences combination,the coal mining face with the layout of the ＂roof-descending slope section-floor＂ could release the impact and squeeze to the powered supports in the low section of the coal mining face when the powered supports sliding and stability lost in the top section of the coal mining face and could reduce the roof falling space in the low section of goaf of the coal mining face in order to make the fell roof rock backfilled section up forward and to provide the favorable conditions for the safety and high efficient production.