Improvement and Perfection of Active-mode Gas Pressure Determination in Coal Seam

摘要：

On the base of wide investigation on problems of present active gas pressure determination instrument in coal seam, improvement and perfection of this instrument are carried out on aspects of borehole sealing material, mechanical structure, pressure determination system, data acquisition and analysis. Based on well-proportioned design method, gum elastic end seal material with well-sealing nature and high strength is developed. On aspect of mechanical structure, the pole connecting fore stand and end sealing equipment of pressure determination instrument is changed into tube connection mode, and this tube can also be used as the container of solid-liquid sealing medium. In consideration of deficiencies of present pressure determination system, the delivery mode of three-phase foam is altered, and an pressure value of rapid compensation for gas charging is added to adjust three-phase foam pressure. In order to perfect data acquisition and analysis, an automatic acquisition, visualization, and analysis system of gas pressure parameter is developed. Practical applications show that the improved and perfected gas pressure determination instrument has advantages of high success rate, quick operation, laborsaving and convenient data acquisition and analysis, and it has wide application domain on gas pressure determination work.

关键词： active mode instrument of gas pressure determination in coal seam improvement and perfection three-phase foam pressure value of rapid compensation for gas charging

作者: MA Shangquan CHEN Xuexi Liang Wei Liang Yulong

作者单位: Department of Safety, North China Institute of Science and Technology, Beijing 101601, China Department of Safety, North China Institute of Science and Technology, Beijing 101601, China;Institu

会议类型: 国际会议

会议名称: The 2007 International Symposium on Safety Science and Technology(2007采矿科学与安全技术国际学术会议)

会议地点: 河南焦作

会议语种:英文

页码: 917-921

在线出版日期: 2007-04-17（万方平台首次上网日期，不代表论文的发表时间）