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通过室内实验模拟研究不同材料对封孔时密封性的影响,采用快硬水泥封黏液、黏液封瓦斯的主动式封孔方法,不但延长了黏液封孔段的长度,而且使煤层瓦斯测压更加可靠准确,从而提高封孔的密封性。
The effects of different materials on the sealing performance of sealing were studied by indoor experiment simulation. The active sealing method using quick-hardening cement sealing liquid and mucus sealing gas not only prolonged the length of mucus sealing section, but also made the gas pressure in coal seam even more Reliable and accurate, so as to improve the seal sealing.