Analysis of the Gas Pressure Recovery Curve of the Upper Inclination Piezometer Hole in the Coal Seams

摘要：

The measurement of coal gas pressure is one of the important work of the gas prevention.However, due to the complexity of coal geological conditions and limitations of technology exploration, making the piezometer hole completely a-void the coal seam water area is hard to do, the water in the hole seriously affect the recovery of gas pressure.In order to accurately determine the original coal seam gas pressure , in this paper, a model of homogeneous radial steady flow is cited , the gas and water flow pattern and pressure distribution three - dimensional space around the piezometer holes is clarified.And this paer analyzes the impact on the gas pressure recovery about water pressure.Practice has proved that gas pressure distribution curve is the hyperbolic shape, pressure distribution curve is the linear , in accordance with the actual site.

关键词： piezometer hole gas pressure resuming curve flow of radial direction

作者: Tian Kunyun Wang Gongzhong Cen Peishan

作者单位: School of Resoure and Safiy Engineering,China University of Mining and Technology (Beijing) ,Beijing Department of Safty Science&Engineering,henan institute of engineering,zhengzhou,451191,china zhengzhou Coal Industry (Group) Co. Ltd Chaohua Coal Mine zhengzhou,452385,China

会议类型: 国际会议

会议名称: the 4th International Symposium on Mine Safety (2012) 第四届国际矿山安全学术研讨会(2012)

会议地点: 阜新

会议语种:英文

页码: 58-61

在线出版日期: 2012-08-04（万方平台首次上网日期，不代表论文的发表时间）