Study on Coal and Gas Outburst Prediction Method with Relative Gas Emission Characteristics in Heading Face
ZENG Jinyuan
ZOU Yunlong
MA Jinfei
Abstract：The percentage of the gas emission from the coal wall of the heading face to the gas emission from the overall heading face and their changes reflected the development status and trend of the relative gas emission in the whole heading face, and a calculation model of gas emission capability from coal wall of the heading face was established. Based on the differences of gas emission from coal wall in the events with and without gas blowout from holes in 3 typical heading roadways in an outburst coal seam,it proved the applicability of using the change of gas emission from coal wall to reflect the outburst hazard,and this thus found out a new technical way of using the dynamic characteristics of gas emission to continuously predict the outburst hazard in the heading face.
Keywords：heading facerelative gas emission of coalcoal and gas outburst predictiongas emission
Publication Date：2015-01-01
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：4( 13-15,18 )