煤矿开采
煤礦開採
매광개채
COAL MINING TECHNOLOGY
2014年
4期
136-138
,共3页
有机封孔材料%瓦斯%钻孔封孔
有機封孔材料%瓦斯%鑽孔封孔
유궤봉공재료%와사%찬공봉공
organic hole-sealing material%methane%bore-hole sealing
针对谢一矿B11 b煤层瓦斯含量高，顶板透气性差，煤层结构复杂，瓦斯排放困难的问题，提出采用一种新型的有机材料注浆封孔的措施。根据现场的实际情况和该有机封孔材料的特性，选取了合理的封孔工艺。通过该有机封孔材料封孔，钻场的瓦斯抽采浓度为85.1％，明显高于使用传统水泥封孔的钻场浓度。
針對謝一礦B11 b煤層瓦斯含量高，頂闆透氣性差，煤層結構複雜，瓦斯排放睏難的問題，提齣採用一種新型的有機材料註漿封孔的措施。根據現場的實際情況和該有機封孔材料的特性，選取瞭閤理的封孔工藝。通過該有機封孔材料封孔，鑽場的瓦斯抽採濃度為85.1％，明顯高于使用傳統水泥封孔的鑽場濃度。
침대사일광B11 b매층와사함량고，정판투기성차，매층결구복잡，와사배방곤난적문제，제출채용일충신형적유궤재료주장봉공적조시。근거현장적실제정황화해유궤봉공재료적특성，선취료합리적봉공공예。통과해유궤봉공재료봉공，찬장적와사추채농도위85.1％，명현고우사용전통수니봉공적찬장농도。
In order to solve methane drainage difficult problem induced by high methane content , bad roof permeability and complex coal-seam structure of B11b Coal-seam in Xieyi Colliery , applying new-style organic hole-sealing material was put forward .Rational bore-hole sealing technique was selected on the basis of field condition and organic hole -sealing material characteristic .By applying the organic hole-sealing material , methane drainage concentration of bore-hole field reached 85.1%, which was obviously higher than that of bore-hole sealed with traditional cement .
