摘要
煤层注水是煤矿矿井预防冲击地压的首选措施。本文将煤层注水中水渗流问题视为有动界面运动的渗流力学问题,针对厚煤层,薄煤层两种情况,分别用径向流,平面平行流导出了提前注水时间和流量的计算公式,为煤层注水预防冲击地压的工艺参数选择提供了科学依据和理论指导。
Water injection into coal seams is the first-selected measure to prevent rock outburst from taking place. The water seepage is regarded as the seepage flow problem with moving surface in this paper. For thick and thin coal seams, the formula of water-injection time and flowing quantity is obtained by using radial and surface parallel flowing, which will provide scientific basis and theory for water injection into coal seams.
出处
《地质灾害与环境保护》
2004年第2期86-88,92,共4页
Journal of Geological Hazards and Environment Preservation
关键词
煤层注水
水渗流
冲击地压
径向流
动界面
rock outburst
water injection in coal seams
redial flow
surface parallel flow
moving surface
