浅埋藏近距离煤层群开采漏风规律研究

Study on Air Leakage Law of Shallow Buried and Close Distance Coal Seam Group

为了防止开采煤层的自燃威胁,并重点防治相邻上覆煤层采空区的自燃。采用SF6示踪气体定性测定漏风的测试方法,通过对神东矿区不同层间距综采工作面进行漏风的观察,研究总结煤层间距不同时的漏风规律,为开采近距离易自燃煤层群时采取相应的漏风控制措施提供依据,尽可能地降低采空区自然发火的可能性,也为今后采空区漏风控制提供科学依据和有效的防范措施。

To prevent the threat of spontaneous combustion in mining coal seam,and focus on prevention and control of spontaneous combustion in adjacent overlying coal seam goaf.In this paper,SF6 tracer gas is used to measure air leakage qualitatively.Through the observation of air leakage at different intervals of fully mechanized mining face in Shendong Mining Area,the law of air leakage at different intervals of coal seams is studied and summarized,which provides a basis for taking appropriate air leakage control measures in mining close distance spontaneous combustion coal seams,and reduces the possibility of spontaneous combustion in goaf as far as possible.The control of air leakage in goaf provides scientific basis and effective preventive measures.