煤体再造技术在工作面过空巷中的应用

Application of Coal Body Reconstruction Technology in Working Face Crossing Gob

本文以同忻矿三盘区8201工作面地质条件为背景,针对工作面存在过空巷的问题,提出将末煤和粉煤灰进行合理配比的煤体再造技术,对工作面空巷进行充填,确保工作面能够安全回采。实践表明:再造煤体的抗压强度与煤相当,且能够保证工作面安全快速通过空巷,消除了过空巷期间顶板、气体隐患。为其他类似条件下工作面过空巷提供的借鉴经验,具有较高的推广价值。

Taking the geological conditions of 8201 working face in No.3 panel of Tongxin mine as the background,aiming at the problem of crossing gob in the working face,this paper puts forward the coal body reconstruction technolo⁃gy,after the reasonable ratio of fine coal and Coal Ash,the goaf of the working face is filled to ensure the safe mining.The practice shows that the compressive strength of the reconstituted coal body is equivalent to that of coal,and can ensure safe and rapid passage through the roadway,eliminate the potential safety hazards of roof and gas during crossing the gob,and provide reference experience for working face crossing the gob under similar conditions,which has high populariza⁃tion value.