带压注浆封孔工艺在测定煤层瓦斯压力中的应用  

Application of Technique of Grunting and Sealing with Pressure in Measuring Methane Pressure in Coal-seam

作　　者：公衍伟[1,2] 解庆雪[1,2] 邓素华[1,2] 

机构地区：[1]贵州省煤矿设计研究院,贵州贵阳550000 [2]贵州省矿山安全科学研究院,贵州贵阳550000

出　　处：《煤矿开采》2013年第2期85-87,共3页Coal Mining Technology

基　　金：西南(贵州)煤矿瓦斯重大灾害防治关键技术研究(黔科合重大专项字[2008]6012)

摘　　要：基于目前各种不同封孔测压方法的工艺和效果及其现场的实际测压过程,分析对比了不同封孔方法的优缺点以及适应条件,并在传统水泥砂浆封孔工艺的基础上提出了带压注浆封孔法测定瓦斯压力,通过理论分析与现场对比实验得出:带压注浆封孔工艺相对于传统的水泥砂浆封孔工艺能够更好地有效封堵裂隙,缩短了瓦斯压力达到稳定状态的时间,瓦斯压力更加接近煤层原始瓦斯压力,对于复杂地质条件下的瓦斯压力测定效果更加明显。Relative Merits and adaptability of different borehole sealing methods were analyzed by introducing current different borehole-sealing pressure-measuring methods and their effect. The method of grunting and sealing with pressure for measuring methane pressure was put forward on the basis of traditional borehole sealing technique with cement mortar. Theoretical analysis and on-the-spot test showed that the technique of grunting and sealing with pressure could more effectively seal fissure than traditional sealing technique with cement mortar, and shorten stable time of methane pressure which was nearer original methane pressure. Methane pressure measuring effect of this method was distinct for complex geological conditions.

关 键 词：带压注浆法 瓦斯压力 测定方法 

分 类 号：TD712[矿业工程—矿井通风与安全]