摘要
煤层注水已经成为煤矿开采中经常采用的一项驱气技术。根据流体力学和多孔介质渗流力学的基本原理,建立实验模型,结合一些数学方法,推导出煤层注水时间的解析解。然后通过大量的实验数据,根据给定的边界条件拟合出响应的曲线,寻找出煤层注水中不同压力的注水半径和注水时间的关系,以及注水时间和压力的关系,为煤层注水提供重要依据。
The coal seam water infusion is a technique that can drive the gas out of the coal seam. According to the basic principle of hydrodynamics and the seepage mechanics with pores, the experimental model is established and the analytic solution about the topping up time is deduced. Then on the basis of many experimental data, the paper fits a response curve which is decided by the boundary condition, At last the relations of the effusion time, the effusion radius and pressure intensity is found, which bring important reference to water injection into coal seam.
出处
《煤矿开采》
2005年第5期6-8,24,共4页
Coal Mining Technology
关键词
煤层注水理论
水气驱替
渗流
Theory of Water Injection into Coal Seam
Diving and Replacement of Water and Gas among Coal Seam
Seepage
