摘要
浅埋深大采高工作面采空区漏风严重,为了准确划分采空区煤自燃危险区域,确定了划分采空区自燃"三带"参数指标;通过N15201工作面自燃"三带"现场观测并与数值模拟相结合,对N15201工作面自燃"三带"进行了划分;依据实验室煤样检验结果和自燃"三带"划分结果,得到防止N15201工作面采空区自燃的极限推进度。
The air leakage in the gob area of the shallow-buried deep and large mining high working face is serious, in order to accurately divide the dangerous areas of coal spontaneous combustion in goaf of working face, the parameters index of dividing spontaneous combustion ＂three zone＂ in goaf were determined. The spontaneous combustion ＂three zones＂ in the N15201 workface was observed and numerical simulation results were considered, the spontaneous combustion ＂three zones＂ of N15201 workface was divided. Based on the results of laboratory coal sample test and spontaneous combustion ＂three zones＂ dividing, minimum coal mining speed of preventing spontaneous combustion in N15201 workface was gotten.
作者
陈明河
CHEN Ming-he(Anhui University of Science and Technology,Huainan 232001,China;Chongqing Research Institute,China Coal Technology and Engineering Group Corporation,Chongqing 400037,China)
出处
《煤炭技术》
CAS
2018年第9期166-168,共3页
Coal Technology
基金
国家自然科学基金(51574279)
重庆市基础与前沿研究计划杰青资助项目(cstc2013jcyjjq9001)
关键词
浅埋深
自燃
三带
数值模拟
shallow-buried
spontaneous combustion
three-zone
numerical simulation
