针对注浆封孔法测定煤层瓦斯压力在实际操作中存在的问题,从可靠性、实用性与经济性出发,提出一种改进的马丽散-注浆封孔新工艺对煤层瓦斯压力进行测定。在实际运用中表明该封孔方法具有良好的效果。
In view of grouting hole sealing problems existing for the coal seam gas pressure measuring in the actual operation,an improved polyurethane-grouting hole sealing new technology for the coal seam gas pressure measuring is put forward.In the practical application,the results showed that the hole sealing method has good effect.