煤
煤
매
Coal
2015年
10期
26-27,31
,共3页
综放工作面%预抽%分形%孔间距
綜放工作麵%預抽%分形%孔間距
종방공작면%예추%분형%공간거
fully-mechanized caving%drainage%fractal%hole spacing
为保障高瓦斯矿井综放工作面安全高效回采,对综放工作面顺层预抽钻场的抽采效果进行研究.运用分形理论对裂隙发育程度进行描述,分析了沿工作面倾向不同位置的煤体内部裂隙发育程度,得出抽采效果最佳的区域;对比分析了不同钻孔间距时钻孔周围煤体的裂隙发育程度,并结合抽采要求确定5. 0 m孔间距为合理间距,并在现场进行了工业验证.
為保障高瓦斯礦井綜放工作麵安全高效迴採,對綜放工作麵順層預抽鑽場的抽採效果進行研究.運用分形理論對裂隙髮育程度進行描述,分析瞭沿工作麵傾嚮不同位置的煤體內部裂隙髮育程度,得齣抽採效果最佳的區域;對比分析瞭不同鑽孔間距時鑽孔週圍煤體的裂隙髮育程度,併結閤抽採要求確定5. 0 m孔間距為閤理間距,併在現場進行瞭工業驗證.
위보장고와사광정종방공작면안전고효회채,대종방공작면순층예추찬장적추채효과진행연구.운용분형이론대렬극발육정도진행묘술,분석료연공작면경향불동위치적매체내부렬극발육정도,득출추채효과최가적구역;대비분석료불동찬공간거시찬공주위매체적렬극발육정도,병결합추채요구학정5. 0 m공간거위합리간거,병재현장진행료공업험증.
To protect gas mine safe and efficient mining of full-mechanized caving mining face,the bedding of full-mechanized caving mining face drainage drilling field to study the effect of extraction. Description of fracture development degree is using the fractal theory, analyzed the coal face tend to different positions inside fracture development degree and the optimum of extraction effect area;compari-son and analysis the different degree of fracture of coal body around the spacing between the borehole drilling,and combined with the re-quirement of extraction from 5. 0 m for reasonable spacing,hole spacing and industrial test on the spot.
