| 新大地煤矿本煤层瓦斯超前卸压抽采试验研究 |
| |
| 引用本文： | 吴仁伦,许家林,秦伟,王中伟,张海平,田林祥.新大地煤矿本煤层瓦斯超前卸压抽采试验研究[J].中国煤炭,2010,36(4). |
| |
| 作者姓名： | 吴仁伦 许家林 秦伟 王中伟 张海平 田林祥 |
| |
| 作者单位： | 1. 中国矿业大学煤炭资源与安全开采国家重点实验室,江苏省徐州市,221008;中国矿业大学矿业工程学院,江苏省徐州市,221116
2. 中国矿业大学矿业工程学院,江苏省徐州市,221116 |
| |
| 基金项目： | 国家自然科学基金重点项目(50834005); 项目名称为“煤炭与煤层气双能源开采基础理论与方法研究”,“煤炭资源与安全开采”国家重点实验室(中国矿业大学)自主科研课题(SKLCRSM08X05) |
| |
| 摘 要： | 对新大地煤矿15101综放工作面利用工作面超前支承压力作用提高低透气性煤层瓦斯抽采效果进行了现场实测研究,结果表明:本煤层瓦斯抽采效果受工作面超前支承压力的影响十分明显,根据本煤层瓦斯抽采钻孔所处位置,其抽采效果可以大致分为4个时期:原始抽采期(工作面前方50 m以外)、抽采减弱期(工作面前方50~20 m)、抽采增长期(工作面前方20~7.38 m)及抽采衰减期(工作面前方7.38 m以内)。其中,抽采增长期和抽采衰减期钻孔瓦斯抽采纯量分别为原始抽采期的7.03倍和6.19倍,是本煤层瓦斯卸压抽采的最佳时期,该时期内钻孔抽采量占本煤层瓦斯抽采总量的57.83%。
|
| 关 键 词： | 低透气性煤层 超前支承压力 卸压瓦斯抽采 煤与瓦斯共采 |
Experiment on advance pressure relief gas extraction in coal seams being mined in Xindadi Coal Mine |
| |
| Wu Renlun,Xu Jialin,Qin Wei,Wang Zhongwei,Zhang Haiping,Tian Linxiang.Experiment on advance pressure relief gas extraction in coal seams being mined in Xindadi Coal Mine[J].China Coal,2010,36(4). |
| |
| Authors: | Wu Renlun Xu Jialin Qin Wei Wang Zhongwei Zhang Haiping Tian Linxiang |
| |
| Affiliation: | Wu Renlun1,2,Xu Jialin1,Qin Wei1,Wang Zhongwei1,Zhang Haiping2,Tian Linxiang2(1.State Key Laboratory of Coal Resources , Mine safety,China University of Mining , Technology,Xuzhou 221008,China,2.School of Mining Engineering,Xuzhou,221116,China) |
| |
| Abstract: | Based on field measurement,the effects of advanced abutment pressure on high-efficient gas extraction from low permeability working seam are researched at #15101 top coal caving longwall face of Xindadi Coal Mine.The results show that the influence of advanced abutment pressure on gas extraction effects in coal seam currently mined is very obvious.Gas extraction effects are roughly divided into four sections in line with the positions of gas extraction boreholes,i.e.primitive section(50m in advance of the w... |
| |
| Keywords: | low permeability coal seam advanced abutment pressure pressure relief gas extraction co-extraction of coal and gas |
| 本文献已被 CNKI 万方数据 等数据库收录！ |
|
