摘要
根据采空区顶板压力分布规律和通风负压作用下采空区风流流动规律,建立采空区瓦斯涌出理论模型,分析采空区瓦斯涌出规律及其与顶板压力和通风负压的关系。提出上区段巷抽采采空区瓦斯技术方法,建立抽采情况下采空区瓦斯流动理论模型,将该方法应用于演马庄矿27091工作面采空区瓦斯抽采,根据采空区瓦斯流动理论模型和现场应用情况提出提高抽采效果的措施。
According to the roof pressure distribution law and the air flow law under the ventilation negative pressure function in the goaf,a gas emission theory model of the goaf was established.The gas emission law from the goaf and the relationship of the gas emission between the roof pressure and the ventilation negative pressure were analyzed.The paper provided the gas drainage technology method for the goaf at the upward section of the gateway.A gas flowing theory model of the goaf under the gas drainage operat...
出处
《煤炭科学技术》
CAS
北大核心
2009年第3期47-50,共4页
Coal Science and Technology
