摘要
矿井煤自燃不仅造成大量的煤炭资源损失,而且严重威胁煤矿的安全生产。针对厚煤层的地质特点,构建了综放工作面采空区遗煤厚度分布模拟试验系统,研究了工作面倾角对采空区遗煤分布规律的影响。结果表明对缓倾斜和急倾斜工作面,遗煤厚度从采空区高位处到低位处逐渐增大,且倾角越大增大的趋势越明显;由此确定了不同倾角条件下,采空区遗煤厚度的分布函数。
Coal spontaneous combustion not only causes a lot of coal resource loss,but also seriously threatens the safety production of coal mine.According to the geological characteristics of thick coal seam,the simulation experimental system of residual coal thickness distribution in goaf of fully mechanized caving face was constructed,and the influence of working face dip angle on the distribution law of residual coal in goaf was studied.The results showed that for gently inclined and steeply inclined working faces,the thickness of residual coal gradually increased from the high position to the low position of the goaf,and the larger the dip angle,the more obvious the increasing trend.On the basis of the results,a distribution function between residual coal thickness and dip angle of goaf was determined.
作者
李文涛
刘志文
史建设
傅琦
刘鹏
Li Wentao;Liu Zhiwen;Shi Jianshe;Fu qi;Liu Peng(Dongxia Coal Mine, Gansu Huating Coal Power Co., Ltd., Huating, Gansu 744100, China;School of Safety Engineering, China University of Mining and Technology, Xuzhou, Jiangsu 221116, China)
出处
《中国煤炭》
2020年第11期123-127,共5页
China Coal
关键词
煤自燃
急倾斜煤层
综放工作面
采空区
遗煤厚度分布
coal spontaneous combustion
steeply inclined coal seam
fully mechanized caving face
goaf
residual coal thickness distribution
