中国煤炭
中國煤炭
중국매탄
China Coal
2015年
9期
101-103
,共3页
黄良%李希建%孙守义%何登华%许浪
黃良%李希建%孫守義%何登華%許浪
황량%리희건%손수의%하등화%허랑
煤层瓦斯压力%注浆测压%下行孔%三堵两段式
煤層瓦斯壓力%註漿測壓%下行孔%三堵兩段式
매층와사압력%주장측압%하행공%삼도량단식
coal seam gas pressure%gas pressure measurement by hole grouting%downward hole%two separation section by three block type
以贵州发耳煤矿7#煤层为研究对象,分析了发耳煤矿现有下行孔注浆封孔测压技术中存在的问题,提出了三堵两段式注浆封孔测压方法。该技术的应用解决了下行孔封孔测压时受孔内积水或围岩裂隙水影响封孔质量问题,现场应用取得了良好效果,为下行孔测定瓦斯压力积累了宝贵的实践经验。
以貴州髮耳煤礦7#煤層為研究對象,分析瞭髮耳煤礦現有下行孔註漿封孔測壓技術中存在的問題,提齣瞭三堵兩段式註漿封孔測壓方法。該技術的應用解決瞭下行孔封孔測壓時受孔內積水或圍巖裂隙水影響封孔質量問題,現場應用取得瞭良好效果,為下行孔測定瓦斯壓力積纍瞭寶貴的實踐經驗。
이귀주발이매광7#매층위연구대상,분석료발이매광현유하행공주장봉공측압기술중존재적문제,제출료삼도량단식주장봉공측압방법。해기술적응용해결료하행공봉공측압시수공내적수혹위암렬극수영향봉공질량문제,현장응용취득료량호효과,위하행공측정와사압력적루료보귀적실천경험。
The paper takes the No.7 coal seam of Faer Coal Mine in Guizhou as the research obj ect,the existing problems of the downward hole grouting technology for hole sealing and gas pressure measurement in the coal mine were analyzed,and the technology of gas pressure meas-urement by hole grouting with the two separation section by three block type was put forward. The application of this technology has solved the problem that the water in the hole and sur-rounding rock fissure affected the hole sealing quality in the process of downward hole sealing for gas pressure measurement and has a good effect on the field application,which accumulates valu-able practical experience for the gas pressure measurement of the downward hole.