晋华宫矿小煤柱短壁机械化采煤技术探讨  

Discussion on Short Wall Mechanized Mining Technology of Small Coal Pillar in Jinhuagong Colliery

作　　者：罗浩华 Luo Haohua(Jinhuagong Colliery,Jinneng Holding Coal Industry Group,Datong,Shanxi 037000)

机构地区：[1]晋能控股煤业集团晋华宫矿,山西大同037000

出　　处：《江西煤炭科技》2022年第2期30-32,共3页Jiangxi Coal Science & Technology

摘　　要：针对晋华宫矿12号煤层小煤柱回收回采,拟定采用短壁机械化采煤法;本文重点分析、探讨了短壁采煤技术特点,并采用“注浆+加长锚杆+L型钢棚”的联合支护方式;矿压监测表明,在距离工作面3m时,巷道两帮和顶板的变形量达到最大,分别为378mm和512mm,巷道围岩基本稳定;为煤柱回收提供切实可行的解决途径。Aiming at the recovery and stoping of small pillars in No.12 coal seam of Jinhuagong Colliery,the paper proposes short wall mechanized mining,focuses on analyzing and discussing the technical characteristics of short-wall coal mining,and adopts the combined support method of“grouting,lengthening bolt,and L-shaped steel shed”,which provides practical solutions for coal pillar recovery.The mine pressure monitoring shows that when the distance from the working face is 3 m,the deformation of the two sides and the roof of the roadway reaches the maximum,which are 378 mm and 512 mm respectively,and the surrounding rock of the roadway is basically stable.

关 键 词：煤柱 短壁采煤法 机械化 注浆加固 联合支护 

分 类 号：TD823.87[矿业工程—煤矿开采]