双柳煤矿三采底抽巷区域消突措施应用及改进  

Gas outburst elimination and improvement of No.3 drainage roadway in Shuangliu Mine

作　　者：郝晋辉 Hao Jinhui(Shuangliu Mine,Fenxi Mining Industry Group,Liulin 033300,China)

机构地区：[1]汾西矿业集团双柳煤矿,山西柳林033300

出　　处：《煤炭与化工》2017年第12期133-135,共3页Coal and Chemical Industry

摘　　要：根据双柳煤矿矿井实际煤层赋存条件、地质条件等因素,在原有煤层底板布置底板岩巷施工穿层短钻孔区域防突的基础上,提出并采用了在底板岩巷内布置钻场,利用定向长钻孔钻机施工长距离穿层钻孔,在达到区域消突效果的同时,最大程度减少区域防突措施钻孔的施工工程量,改进钻孔的有效穿层钻孔区域防突措施,在经过6个月的抽采后,煤层中瓦斯含量从13.23 m^3/t降到4.8 m^3/t,瓦斯压力从2.3 MPa降到0.38 MPa,达到了消突的目的,与原来设计的采用短距离穿层消突钻孔相比,在达到煤层消突的同时大量减少了钻孔的工程量、封孔材料等费用,提高了钻孔的利用率。Combined with coal seam.occurrence and geological condition in Shuangliu Mine,long directional drilling wear layers was adopted to remove the outburst and minimize the drilling working,the technology made the gas content reduce from 13.23 m3/t to 4.8 m3/t,gas perssure from 2.3MPa to 0.38MPa after 6 months drainage mining,achieving the goal of outburst elimination,reducing the drilling works and the cost,improving the utilization of drilling.

关 键 词：穿层钻孔 区域消突 措施 改进 

分 类 号：TD713.3[矿业工程—矿井通风与安全]