Development and Application of a New Integrated Gas Pressure Measuring Device by Hole Sealing
WANG Lian
WEN Liangbing
GUO Chenye
TIAN Hong
HUANG Gu
Abstract：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.
Keywords：coal-seam gas pressuremeasurementintegration of gas pressure measurement by hole sealing
Publication Date：2014-01-01
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：3( 47-49 )