摘要
根据不连沟煤矿F6102面开采强度大、煤层自燃倾向等级高,研究其采空区自燃"三带"的分布规律,并结合顶板失稳特征分析二者之间的关系。采用束管监测采空区气体分布,得出了采空区自燃"三带"的分布规律。根据矿压观测与关键层理论分析,分析了顶板破断形成的结构及失稳形式,采用RFPA2D模拟了采空区底板支承压力分布规律,划分了采空区压力横三区;分析了各区渗流特点,通过对比发现浅埋采空区自燃"三带"与压力横三区有较好的对应关系。
Researched on the ＂Three-Zone＂ of spontaneous combustion of gob based on enlargement of the mining intensity and high spontaneous combustion tendency in the F6102 fully-mechanized face of Buliangou mine, the relationship between it and roof instability is analyzed. Used strap tube technology to monitor gas distribution in gob, the distribution law of ＂Three-Zone＂ of spontaneous combustion of gob is obtained. Analyzed the roof struc- ture and its buckling form based on mineral pressure observation and key strata theory, and used RFPA2D to simu- late the abutment pressure distribution in gob, the ＂Three-Zone＂ of horizontal pressure and analyzed its seepage characteristics are obtained. Found that the ＂Three-Zone＂ of spontaneous combustion and ＂Three-Zone＂ of hori- zontal pressure have favorable corresponding relation.
出处
《科学技术与工程》
北大核心
2013年第16期4647-4650,共4页
Science Technology and Engineering
关键词
综放采空区
自燃“三带”
关键层理论
支承压力
gob of fully-mechanized face ＂Three-Zone＂ of spontaneous combustion key strata theory
abutment pressure
