低瓦斯矿井高产高效工作面瓦斯地面抽采技术
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摘要
为保障塔山煤矿安全高效开采,基于对工作面瓦斯来源、涌出特点及矿压规律的研究,表明塔山煤矿为低瓦斯矿井,但工作面绝对瓦斯涌出量随煤炭产量的增加而增加,为典型的高强度开采条件下瓦斯涌出矿井。根据"O"形圈理论、采矿"上三带"理论及矿压规律,创新提出一种低瓦斯矿井高产高效工作面瓦斯地面抽采技术,即施工地面垂直采动井组解决回风巷、上隅角及采空区瓦斯治理问题。结果表明:该技术使得回风巷瓦斯浓度降低至0.8%以下,上隅角瓦斯浓度降低至0.4%以下,同时实现了对采空区瓦斯的有效抽采。
To ensure high output and efficiency mining of Tashan coal mine,based on characters of working face methane and pressure principle,Tashan coal mine is low methane mine,but absolute methane emission of working face increased with coal production increased,so it is typical methane emission coal mine under high intensity mining.According ‘O' circle theory,'upper three belts' theory and pressure principle,and then coalbed methane surface drainage technology of high output and efficiency working face of low methane coal mine was put forward,gas control and prevention of air return way,upper corner and gob methane control could be solved by surface vertical mining well group.The results showed that methane concentration of air return roadway and upper corner reduced below 0.8% and 0.4%,and also gob methane effectively drainage was realized.
To ensure high output and efficiency mining of Tashan coal mine,based on characters of working face methane and pressure principle,Tashan coal mine is low methane mine,but absolute methane emission of working face increased with coal production increased,so it is typical methane emission coal mine under high intensity mining.According ‘O' circle theory,'upper three belts' theory and pressure principle,and then coalbed methane surface drainage technology of high output and efficiency working face of low methane coal mine was put forward,gas control and prevention of air return way,upper corner and gob methane control could be solved by surface vertical mining well group.The results showed that methane concentration of air return roadway and upper corner reduced below 0.8% and 0.4%,and also gob methane effectively drainage was realized.
引文
[1]孙祺,杨胜强,程涛,等.综放工作面初采期瓦斯治理的综合措施[J].煤矿安全,2011,42(3):79-82.
[2]李保东.高产高效工作面瓦斯综合治理技术研究现状[J].煤矿安全,2011,42(5):120-122.
[3]吕绍林.两种类型高产高效工作面瓦斯涌出特征[J].煤炭科学技术,1997(4):21-23.
[4]雷云,周明磊,王海东,等.三进两回通风系统采空区瓦斯运移规律及其治理研究[J].中国煤炭,2012,38(10):101-104.
[5]张兴华,李德洋,尚作铁,等.高产高效工作面的瓦斯涌出量预测方法及其应用[J].煤矿安全,2001,32(4):35-37.
[6]钱鸣高,许家林.覆岩采动裂隙分布的“O”形圈特征研究[J].煤炭学报,1998(5):466-469.
[7]李宗翔,衣刚,武建国,等.基于“O”型冒落及耗氧非均匀采空区自燃分布特征[J].煤炭学报,2012,37(3):484-489.
[8]秦伟.地面钻井抽采老采空区瓦斯的理论与应用研究[D].徐州:中国矿业大学,2013.
[9]阚占和,佟军,魏保民,等.采空区高位钻孔瓦斯抽放技术应用与分析[J].中国矿业,2009,18(11):100-103.
[10]胡千庭,孙海涛.煤矿采动区地面井逐级优化设计方法[J].煤炭学报,2014,39(9):1907-1913.
[11]钱鸣高,石平五,许家林.矿山压力与岩层控制[M].徐州:中国矿业大学出版社,2012.
[12]许家林,孟广石.应用上覆岩层采动裂隙“O”形圈特征抽放采空区瓦斯[J].煤矿安全,1995(7):2-4.
[13]袁亮,郭华,李平,等.大直径地面钻井采空区采动区瓦斯抽采理论与技术[J].煤炭学报,2013,38(1):1-8.
[14]方仲春,周为军,谢斌.钻场钻孔施工定位新技术应用[J].能源技术与管理,2019(1):41-42,159.
[15]任振兴.综采工作面上隅角瓦斯抽采技术研究[J].能源与节能,2019(2):134-135.
[16]侯国培,郭昆明,岳茂庄.高位定向长钻孔瓦斯抽采技术应用[J].煤炭工程,2019,51(1):64-67.
[2]李保东.高产高效工作面瓦斯综合治理技术研究现状[J].煤矿安全,2011,42(5):120-122.
[3]吕绍林.两种类型高产高效工作面瓦斯涌出特征[J].煤炭科学技术,1997(4):21-23.
[4]雷云,周明磊,王海东,等.三进两回通风系统采空区瓦斯运移规律及其治理研究[J].中国煤炭,2012,38(10):101-104.
[5]张兴华,李德洋,尚作铁,等.高产高效工作面的瓦斯涌出量预测方法及其应用[J].煤矿安全,2001,32(4):35-37.
[6]钱鸣高,许家林.覆岩采动裂隙分布的“O”形圈特征研究[J].煤炭学报,1998(5):466-469.
[7]李宗翔,衣刚,武建国,等.基于“O”型冒落及耗氧非均匀采空区自燃分布特征[J].煤炭学报,2012,37(3):484-489.
[8]秦伟.地面钻井抽采老采空区瓦斯的理论与应用研究[D].徐州:中国矿业大学,2013.
[9]阚占和,佟军,魏保民,等.采空区高位钻孔瓦斯抽放技术应用与分析[J].中国矿业,2009,18(11):100-103.
[10]胡千庭,孙海涛.煤矿采动区地面井逐级优化设计方法[J].煤炭学报,2014,39(9):1907-1913.
[11]钱鸣高,石平五,许家林.矿山压力与岩层控制[M].徐州:中国矿业大学出版社,2012.
[12]许家林,孟广石.应用上覆岩层采动裂隙“O”形圈特征抽放采空区瓦斯[J].煤矿安全,1995(7):2-4.
[13]袁亮,郭华,李平,等.大直径地面钻井采空区采动区瓦斯抽采理论与技术[J].煤炭学报,2013,38(1):1-8.
[14]方仲春,周为军,谢斌.钻场钻孔施工定位新技术应用[J].能源技术与管理,2019(1):41-42,159.
[15]任振兴.综采工作面上隅角瓦斯抽采技术研究[J].能源与节能,2019(2):134-135.
[16]侯国培,郭昆明,岳茂庄.高位定向长钻孔瓦斯抽采技术应用[J].煤炭工程,2019,51(1):64-67.