|本期目录/Table of Contents|

[1]杨明,张帆.煤层倾角对采空区流场及瓦斯分布的影响研究[J].中国安全生产科学技术,2014,10(11):34-40.[doi:10.11731/j.issn.1673-193x.2014.11.006]
　YANG Ming,ZHANG Fan.Study on influence of coal seam dip angle to the air flow field and gas distribution in goaf[J].JOURNAL OF SAFETY SCIENCE AND TECHNOLOGY,2014,10(11):34-40.[doi:10.11731/j.issn.1673-193x.2014.11.006]
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煤层倾角对采空区流场及瓦斯分布的影响研究
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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:
34-40
栏目:
学术论著
出版日期:
2014-11-30

文章信息/Info

Title:
Study on influence of coal seam dip angle to the air flow field and gas distribution in goaf
作者:
杨明1; 2; 3; 张帆2
（1.河南省瓦斯地质与瓦斯治理重点实验室——省部共建国家重点实验室培育基地，河南焦作454000;2.河南理工大学 安全科学与工程学院，河南焦作454000； 3. 煤炭安全生产河南省协同创新中心, 河南焦作454000）
Author(s):
YANG Ming1; 2; 3;  ZHANG Fan2
（1.State Key Laboratory Cultivation Base for Gas Geology and Gas Control, Jiaozuo Henan 454000, China; 2.School of Safety Science and Engineering, Henan Polytechnic University, Jiaozuo Henan 454000, China; 3. The Collaborative Innovation Center of coal safety production of Henan Province, Jiaozuo Henan 454000, China）
关键词:
矿山安全; 煤层倾角; 采空区流场; 漏风; 瓦斯分布
Keywords:
mine safety;  coal seam dip angle;  flow field in goaf;  air leakage;  gas distribution
分类号:
X936；TD721
DOI:
10.11731/j.issn.1673-193x.2014.11.006
文献标志码:
A
摘要:
为获得不同煤层倾角条件下的采空区流场及瓦斯分布变化规律，以平煤六矿22310工作面为原型，通过建立采空区数学物理模型并设置边界条件，数值模拟了工作面采空区气体压力、漏风和瓦斯分布情况，并与该工作面现场实测通风参数对比，对模型可靠性进行验证。在已建立模型的基础上，模拟了煤层倾角分别为5.75°、35.75°、65.75°时的采空区气体压力、漏风和瓦斯分布，对比分析了三种煤层倾角下的采空区流场及瓦斯分布变化规律。结果表明：随着煤层倾角增加，采空区气体压力降低，压力梯度升高；工作面漏风量变化微小，漏风分布规律不变；采空区瓦斯浓度和采空区瓦斯总量降低。
Abstract:
To obtain the distribution characteristics of the flow field and gas in goaf for different coal seam dip angle, by establishing the mathematical physical model of goaf and setting the boundary conditions, the distribution of air pressure, air leakage and gas in the working face and goaf were numerically simulated based on the 22310 working face in NO.6 coal mine of PingMei group, and the simulation results were compared with the field measurements of ventilation parameters in this working face to prove the reliability of the mathematical physics model. Then, the distribution characteristics of air pressure, air leakage and gas in goaf were simulated and analyzed with the dip angle of coal seam being 5.75°,35.75°and 65.75° respectively based on the mathematical physics model. By comparing the change rules about the distribution of flow field and gas in goaf, the result showed that, when the dip angle of coal seam increases, the air pressure in goaf decreases and the pressure gradient in goaf increases; the change of air leakage quantity in working face is very small and the distribution laws of air leakage keep steady; the gas concentration and the content of gas in goaf decreases.

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（51174079）；国家重点基础研究发展计划 “973” 项目(2012CB723103)；教育部长江学者和创新团队发展计划创新团队项目（IRT1235)；河南省瓦斯地质与瓦斯治理重点实验室——省部共建国家重点实验室培育基地开放基金（WS2012A07）
更新日期/Last Update: 2014-11-30