摘要
通过对综放工作面巷道煤层所处环境、松散煤体漏风流态、漏风动力等关键因素的分析 ,研究了巷道煤体漏风状况 .结果表明 ,综放工作面巷道煤体中的漏风流态为层流 ,并在此基础上推导出巷道松散煤体渗透系数的表达式、漏风强度、风压梯度与空隙率之间的关系式及总体漏风强度表达式 ,从而为进一步完善巷道煤体自燃理论及防治技术研究提供了一定的理论基础 ,具有一定的现实意义 .
By means of analyzing several key elements, include fluid state of leakage, permeation power and surroundings of gate coal seam in fully mechanized long wall top coal caving mining face, exploring leakage law in loose coal of gate in this paper. The research results show the state of air leakage through loose coal of gate is laminar flow, expression formula of permeation coefficient and total intensity of gate coal as well as relationship formula about intensity of air leakage, pressure gredient and porousness were derived. Parts of basic work were fulfilled for further perfecting spontaneous combustion theory and control technology.
出处
《煤炭学报》
EI
CAS
CSCD
北大核心
2000年第6期619-623,共5页
Journal of China Coal Society
基金
国家"九五"重点科技攻关项目!(97-13)
关键词
巷道
综放工作面
漏风
多孔介质
煤自然
煤体
gate
fully mechanized long wall top coal caving mining face
air leakage
porous media
