摘要
将采煤工作面瓦斯来源划分为煤壁、采落煤和采空区３部分，并给出了各部分瓦斯涌出量的计算公式．研究了回采过程、煤层群不同的开采顺序以及厚煤层分层开采时的瓦斯涌出规律，论述了中国煤矿采煤工作面采用不同的通风系统、脉冲通风以及瓦斯抽放等控制瓦斯涌出的原理与技术的新成果，介绍了瓦斯涌出量达１５０ｍ ３／ｍ ｉｎ 的综采放顶煤工作面瓦斯控制技术实例．
The sources of gas emission at a coal face were divided into three parts: the coal wall, the mined coal and the goaf, and the formulas of calculating the quantity of gas emission in each part were given. The pattern of gas emission was studied for mining process, different mining sequence for group of coal seams and slice mining for thick coal seams. And the new achievements of control principle and technique were discussed for gas emission by using different ventilation systems, pulsing ventilation and gas drainage at coal face in China. Finally, the control practice of gas emission at sub level coal face with a gas emission quantity of 150 m 3/min was introduced.
出处
《中国矿业大学学报》
EI
CAS
CSCD
北大核心
2000年第1期9-14,共6页
Journal of China University of Mining & Technology
基金
国家自然科学基金!59874027
国家"九五"重点科技攻关项目!96-223-01-05-04
关键词
采煤工作面
瓦斯涌出规律
控制技术
通风系统
coal face
pattern of gas emission
technique of control
ventilation system
pulsing ventilation
gas drainage
