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[1]赵发军,陈学习,刘彦伟.损失瓦斯量与煤的破坏类型关系研究[J].中国安全生产科学技术,2016,12(10):30-36.[doi:10.11731/j.issn.1673-193x.2016.10.005]
　ZHAO Fajun,CHEN Xuexi,LIU Yanwei.Study on relationship between gas loss quantity and destruction types of coal[J].JOURNAL OF SAFETY SCIENCE AND TECHNOLOGY,2016,12(10):30-36.[doi:10.11731/j.issn.1673-193x.2016.10.005]
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损失瓦斯量与煤的破坏类型关系研究
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《中国安全生产科学技术》[ISSN:1673-193X/CN:11-5335/TB]

卷:
12
期数:
2016年10期
页码:
30-36
栏目:
学术论著
出版日期:
2016-10-30

文章信息/Info

Title:
Study on relationship between gas loss quantity and destruction types of coal
作者:
赵发军1; 3; 陈学习2;  刘彦伟1; 3
(1．河南理工大学 安全科学与工程学院，河南 焦作 454000；2. 华北科技学院，河 北 廊坊065201； 3. 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)
Author(s):
ZHAO Fajun1; 3;  CHEN Xuexi2;  LIU Yanwei1; 3
1. School of Safety Science and Engineering, Henan Polytechnic University, Jiaozuo Henan 454000, China; 2. North China Institute of Science and Technology, Langfang Hebei 065201, China; 3. State Key Laboratory Cultivation Base for Gas Geology and Gas Control, Jiaozuo Henan 454000, China
关键词:
损失瓦斯量; 孔隙结构; 煤的类型;  扩散系数
Keywords:
gas loss quantity;  pore structure;  coal type;  diffusion coefficient
分类号:
X936
DOI:
10.11731/j.issn.1673-193x.2016.10.005
文献标志码:
A
摘要:
损失瓦斯量是准确获取煤层瓦斯含量的基础数据。通过实验室测定和不同损失量计算模型的对比分析，表明采用 传统的t法和幂函数法获取损失瓦斯量时，Ⅱ类、Ⅲ类和Ⅳ类煤符合性较好，误差小于20%，I类煤和Ⅴ类煤的损失瓦斯 量误差为25%~31%；煤中孔隙结构的差异是误差产生的原因，I类煤中原生孔隙占多数，Ⅴ类煤的孔隙受构造影响最大， 其它类型煤的孔隙结构介于I类煤和Ⅴ类煤之间；对于I类煤和Ⅴ类煤，采用表征原生孔隙和构造孔隙双孔隙特征的模型 获得的损失瓦斯量误差低于10%。研究结论对煤层瓦斯含量测定具有重要意义。
Abstract:
The gas loss quantity is the basic data to accurately obtain the gas content in coal seam. Through laboratory tests and comparative analysis on different calculation models of gas loss quantity, it showed that when adopting the traditional t method and power-function method to obtain the gas loss quantity, the conformance of class II, III and IV coal were better, with the error less than 20%, while the errors of gas loss quantity for class I and V coal were 25%-31%. The errors were caused by the difference of pore structure in coal. The primary pores were in the majority for class I coal, and the structure had the greatest influence on the pores of class V coal, while the pore structure of other classes coal lay between class I coal and class V coal. The errors of gas loss quantity obtained by the model with representation of dual pore characteristics about primary pore and structure pore were less than 10% for class I coal and class V coal. The results are of great significance for the measurement of gas content in coal seam.

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备注/Memo

备注/Memo:
河北省矿井灾害防治重点实验室开放基金项目(KJZH2014K05)；国家自然科学基金项目(51374095， 51404099)
更新日期/Last Update: 2016-11-30