急倾斜矿井区段煤柱的回收技术  

Recovery technology of pillar in steep mining face

作　　者：戈立言[1] 刘章华[1] 

机构地区：[1]国投新集能源股份有限公司新集三矿,安徽淮南232100

出　　处：《煤炭技术》2000年第4期16-17,共2页Coal Technology

摘　　要：新集三矿属急倾斜矿井 ,在回收区段隔离煤柱中应用松动爆破技术 ,达到了预期效果 ,提高了采区回采率 ,减少了煤炭损失 ,并为同类型矿井提供了经验。Xinji No.3 Coal Mine is a steep mine.It has reached pre-results by isolating the pillar with loosen blast technology in recovery area The recovery rate is lifted and coal loss is reduced.It is an example for the same mine.

关 键 词：区段煤柱 回收 松动煤破 急倾斜矿井 爆破参数 

分 类 号：TD823.87[矿业工程—煤矿开采] TD823.213[矿业工程—矿山开采]