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| 高瓦斯煤层群“煤与瓦斯共采”技术研究 | |
| 引用本文： | 谢生荣,武华太,赵耀江,何富连,郭海东,袁胜军.高瓦斯煤层群“煤与瓦斯共采”技术研究[J].采矿与安全工程学报,2009,26(2). |
| 作者姓名： | 谢生荣 武华太 赵耀江 何富连 郭海东 袁胜军 |
| 作者单位： | 1. 北京科技大学,土木与环境工程学院,北京,100083 2. 华晋焦煤有限责任公司,山西,离石,033315 3. 太原理工大学矿业工程学院,山西,太原,030024;中国矿业大学资源与安全工程学院,北京,100083 4. 中国矿业大学资源与安全工程学院,北京,100083 5. 太原理工大学矿业工程学院,山西,太原,030024 |
| 基金项目： | 教育部留学同国人员科研启动基金 |
| 摘 要： | 为了解决沙曲矿近距离高瓦斯煤层群开采过程中综采面上隅角和回风流中浓度超限这一难题,结合从德国引进的千米定向钻机设备,提出了高抽钻孔纽和顶板裂隙钻孔组联合抽采瓦斯技术,构建了沙曲矿"煤与瓦斯共采"技术体系.本文在项板千米钻孔抽采技术原理分析的基础上,采用UDEC4.0数值模拟软件计算得出采空区冒落带和裂隙带高度为9 m和30 m,采动裂隙"0"形圈的范围为距工作面顶板垂高10～25 m,距采空区两侧水平距离为10～35 m.研究表明,顶板千米大直径钻孔抽采技术治理瓦斯效果明显,上隅角瓦斯体积分数稳定在0.8%以下,且钻孔抽采瓦斯体积分数达55%以上,抽采量达50 m3/min以上,实现煤与瓦斯安全高效共采. |
| 关 键 词： | 高瓦斯 近距离煤层群 千米大直径钻孔 "O"形圈 煤与瓦斯共采 |
Technology of "Coal and Gas Simultaneous Extraction" for High Gassy Coal Seams Group |
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| XIE Sheng-rong,WU Hua-tai,ZHAO Yao-Jian,HE Fu-lian,GUO Hai-dong,YUAN Sheng-jun.Technology of "Coal and Gas Simultaneous Extraction" for High Gassy Coal Seams Group[J].Journal of Mining and Safety Engineering,2009,26(2). | |
| Authors: | XIE Sheng-rong WU Hua-tai ZHAO Yao-Jian HE Fu-lian GUO Hai-dong YUAN Sheng-jun |
| Affiliation: | 1.College of Civil and Environmental Engineering;University of Science and Technology Beijing;Beijing 100083;China;2.Huajin Coking Coal Co.Ltd.;Lishi;Shanxi 033315;3.College of Mining Technology;Taiyuan University of Technology;Taiyuan;Shanxi 030024;4.College of Resources & SafetyEngineering;China University of Mining & Technology;China |
| Abstract: | The gas concentration in upper corners and air return ways in fully mechanized face always exceeds limit during mining activeties in near the high gas coal seam group in Shaqu coal mine.In order to solve the problem,we proposed the combined technique of roof borehole group with fracture borehole group using 1 000 m long oriented drill equipment imported from Germany and built the technical system of "simultaneous extraction of coal and gas".Based on the theoretical analysis for 1 000 m long drainage skills,... |
| Keywords: | high gas contiguous coal seams group 1000 m long great diameter borehole "O-shaped" circle coal and gas simultaneous extraction |
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