摘要
高、突瓦斯煤层回采工作面及回风流瓦斯超限是现场瓦斯管理的一大难题 ,瓦斯涌出量 2 0m3 /min以上的工作面 ,仅靠通风解决不了瓦斯超限问题 ,有效的办法是进行瓦斯抽放。由于采场接替、抽放效果等诸多原因 ,随采随抽瓦斯方法为首选。文章对随采随抽方法及影响因素进行了分析 ,并介绍了有效的抽放方法。
The gas management of the working faces and return-ways in coal seam with high and out-bursting gas is a difficult problem. When the gas-discharge exceeds 20m3/min, the problem couldn't be solved only by ventilation. The effective measure is gas-suction. Due to some reasons of the face arrangement, the gas-suction effect, and so on, the first choice is the method of gas-suction over mining. This article discusses the effect factors in the method of gas-suction over mining and introduces the effective method.
出处
《煤矿开采》
2001年第z1期42-46,共5页
Coal Mining Technology
