|本期目录/Table of Contents|

[1]李尧斌,朱丹.钻孔抽采瓦斯量影响因素分析与工程实践[J].中国安全生产科学技术,2014,10(11):124-127.[doi:10.11731/j.issn.1673-193x.2014.11.021]
　LI Yao-bin,ZHU Dan.Study on influence factors of drilling gas drainage and engineering practice[J].JOURNAL OF SAFETY SCIENCE AND TECHNOLOGY,2014,10(11):124-127.[doi:10.11731/j.issn.1673-193x.2014.11.021]
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钻孔抽采瓦斯量影响因素分析与工程实践
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《中国安全生产科学技术》[ISSN:1673-193X/CN:11-5335/TB]

卷:
10
期数:
2014年11期
页码:
124-127
栏目:
职业安全卫生管理与技术
出版日期:
2014-11-30

文章信息/Info

Title:
Study on influence factors of drilling gas drainage and engineering practice
作者:
李尧斌1; 2; 朱丹 3
(1. 安徽理工大学 能源与安全学院，安徽淮南232001； 2.安徽理工大学 煤矿安全高效开采省部共建教育部重点实验室， 安徽淮南232001； 3.江西省煤田地质勘查研究院，江西南昌330001)
Author(s):
LI Yao-bin1; 2;  ZHU Dan3
(1.School of Energy and Safety, Anhui University of Science and Technology, Huainan Anhui 232001,China； 2. Key Laboratory of Safety and High-efficiency Coal Mining, Ministry of Education(Anhui University of Science and Technology), Huainan Anhui 232001, China；3.Coal Geology Prospecting Institute of Jiangxi Province, Nanchang Jiangxi 330001, China)
关键词:
钻孔; 抽采瓦斯量; 瓦斯流动
Keywords:
drilling;  gas drainage quantity;  gas flow
分类号:
X936
DOI:
10.11731/j.issn.1673-193x.2014.11.021
文献标志码:
A
摘要:
为了提高钻孔抽采瓦斯量，基于煤层瓦斯流动和层次分析法等理论，研究了钻孔抽采瓦斯量的影响因素及各影响因素重要度，同时现场考察了透气性系数变化对钻孔瓦斯抽采量的影响。结果表明：钻孔抽采瓦斯量影响因素有煤层透气性系数、煤层原始瓦斯压力、煤层厚度、抽采钻孔孔径和抽采时间等，其中煤层透气性系数是对其起决定影响作用的参数；重要度上煤层透气性系数对钻孔瓦斯抽采量的影响是抽采负压和钻孔半径的7.1倍；被保护层的透气性系数增大可大幅度提高了钻孔抽采瓦斯量
Abstract:
In order to improve the gas drainage quantity of drilling，the influence factors on gas drainage quantity of drilling and the important degree of them were studied based on the theories of gas flow in coal seams and analytic hierarchy process. Meanwhile, the influence on gas drainage quantity by the change of permeability coefficient in coal seam was studied. The results showed that: the influence factors on gas drainage quantity of drilling include the permeability coefficient, the original gas pressure of coal seam, the thickness of coal seam, borehole diameter, and extraction time, etc. Among the influence factors, the coal seam permeability coefficient is the decisive influence parameters. About the important degree, the influence by the permeability coefficient of coal seam is 7.1 times of the drainage negative pressure and the borehole radius, and the increase of permeability coefficient in protected coal seam can greatly increase the gas drainage quantity of drilling.

参考文献/References:

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备注/Memo

备注/Memo:
国家自然科学基金项目(51004003，50974004)；安徽省教育厅自然科学基金重点项目(KJ2010A091)；淮南市指导性科技计划项目（2013A4001，2011B34）；淮南矿业（集团）有限责任公司和安徽理工大学合作项目“瓦斯含量法预测突出危险期及检验效果技术装备研究”
更新日期/Last Update: 2014-11-30