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采动卸压区地面钻井抽采诱导煤自燃研究现状与分析
发布人:网站管理员 发布时间:2023/4/18 点击次数:24次
  

采动卸压区地面钻井抽采诱导煤自燃研究现状与分析
成玮,王浩
(华北科技学院安全工程学院,河北廊坊065201)
摘要: 分析了地面钻井抽采瓦斯过程对采动区“三带”分布影响的研究现状,从瓦斯对煤自燃的影响、地面钻井分
布位置以及地面钻井抽采负压三个方面阐述了地面钻井对采动区煤自燃的影响,表明了一定浓度的瓦斯对煤自燃可以产
生抑制作用,煤在低浓度瓦斯环境下放热量和放热速度降低,瓦斯会对煤中与煤自燃有关的官能团的产生起到抑制作
用。地面钻井是通过增大采空区一定区域的漏风量来影响采空区“三带”的分布。地面钻井的分布位置对于采空区“三
带”分布的影响大于抽采负压对“三带”分布的影响。总结研究成果,分析研究中存在的不足和需改进之处,提出之后
研究的大致方向,以期为相关工作提供参考。
关键词: 地面钻井;瓦斯抽采;煤自燃;三带
中图分类号: TD712      文献标志码: A      文章编号: 2095-0802-(2023)04-0045-03
Research Status and Analysis of Coal Spontaneous Combustion Induced by Surface Drilling in
Mining-induced Pressure Relief Area
CHENG Wei, WANG Hao
(School of Safety Engineering, North China Institute of Science and Technology, Langfang 065201, Hebei, China)
Abstract: This paper analyzed the research status of the influence of surface drilling on the distribution of "three zones" in the
mining area in the process of gas extraction, expounded the influence of surface drilling on coal spontaneous combustion in the
mining area from three aspects: the influence of gas on coal spontaneous combustion, the distribution position of surface drilling
and the negative pressure of surface drilling extraction, and showed that a certain concentration of gas can inhibit coal
spontaneous combustion. In the low concentration gas environment, the heat release and heat release rate of coal decrease, and
gas will inhibit the generation of functional groups related to spontaneous combustion of coal. Surface drilling affects the
distribution of "three zones" in goaf by increasing the air leakage in a certain area of goaf. The influence of surface drilling
location on the "three zones" distribution of goaf is greater than that of pumping negative pressure. Summarize the research
results, analyze the shortcomings and possible improvements in the research, and put forward the general direction of future
research to provide reference for related work. Summarize the research results, analyze the shortcomings and possible
improvements in the research, and propose the general direction of the future research to provide reference for related work.

Key words: surface drilling; gas drainage; coal spontaneous combustion; three zones