CAJ | 학술논문

常规封孔测压方法在测定煤层瓦斯压力时,难以准确封堵至目标位置,测定结果的准确性值得商榷。提出采用一种新型封孔测压一体化装置解决该问题,并在木孔煤矿进行了实测,结果表明,在相同的地质单元+650 m大巷施工埋深相近、倾角和方位角相同的钻孔,所测定的2号煤层的瓦斯压力值比采用填料封孔测压的常规测压法测定的值大0．45~0．56 MPa,测定结果更为准确。
상규봉공측압방법재측정매층와사압력시,난이준학봉도지목표위치,측정결과적준학성치득상각。제출채용일충신형봉공측압일체화장치해결해문제,병재목공매광진행료실측,결과표명,재상동적지질단원+650 m대항시공매심상근、경각화방위각상동적찬공,소측정적2호매층적와사압력치비채용전료봉공측압적상규측압법측정적치대0．45~0．56 MPa,측정결과경위준학。
It is difficult to accurately seal the hole to the target location and the accuracy of measuring results is questionable when the conventional gas pressure measuring method by hole sealing was used for gas pressure measurement. For solving this problem, a new integrated gas pressure measuring device by hole sealing was proposed and developed, with this device, actual measurement of gas pressure was conducted in Mukong Coal Mine, the results showed that when the hole with similar buried depth and the same dip angle and azimuth was drilled in-650m main roadway in the same geologic unit, the gas pressure of No. 2 coal seam which was measured by this new device was 0. 45-0. 56 MPa larger than that by conventional gas pressure measuring method by hole sealing with filling.