煤
煤
매
COAL
2014年
7期
18-20
,共3页
定向长钻孔%预抽区段%效果评价
定嚮長鑽孔%預抽區段%效果評價
정향장찬공%예추구단%효과평개
directional long drilling hole%drainage section%effect evaluation
山西华润大宁煤矿为煤与瓦斯突出矿井，针对该矿3号煤层厚度大、瓦斯含量高等特点，为了消除煤层突出危险性，采取顺层定向长钻孔预抽区段煤层瓦斯的区域防突措施，通过对钻孔瓦斯浓度、区域效果检验和防突指标验证进行预抽效果分析，证明该区域防突措施有效消除了煤层突出危险性，保障了矿井的安全生产。
山西華潤大寧煤礦為煤與瓦斯突齣礦井，針對該礦3號煤層厚度大、瓦斯含量高等特點，為瞭消除煤層突齣危險性，採取順層定嚮長鑽孔預抽區段煤層瓦斯的區域防突措施，通過對鑽孔瓦斯濃度、區域效果檢驗和防突指標驗證進行預抽效果分析，證明該區域防突措施有效消除瞭煤層突齣危險性，保障瞭礦井的安全生產。
산서화윤대저매광위매여와사돌출광정，침대해광3호매층후도대、와사함량고등특점，위료소제매층돌출위험성，채취순층정향장찬공예추구단매층와사적구역방돌조시，통과대찬공와사농도、구역효과검험화방돌지표험증진행예추효과분석，증명해구역방돌조시유효소제료매층돌출위험성，보장료광정적안전생산。
Shanxi Huarun Daning Coal Mine is coal and gas prominent coal mine,it aimed large thickness of No. 3 Coal Seam,high gas content,etc,it took long bedding directional drilling drainage section coal seam in the area of gas outburst prevention measures in order to eliminate the outburst danger of coal seam,the effect of regional test and validation index of outburst prevention drainage effect analy-sis based on the borehole gas concentration,it show that the area effectively eliminate the outburst danger of coal seam outburst preven-tion measures,ensure the safety of the mine production.
