Pressure vessel physical explosion hypothesis for coal and gas outburst
Abstract：The pressure vessel model is set up for the coal seam ahead of the developing face based on the abutment pressure distribution characteristics. Coal and gas outburst is considered as a physical explosion phe nomenon after identifying that the pressure vessel model meets two conditions （rapid expansion air and brittle break vessel wall） that lead to its physical explosion. Then, the signs, basic characteristics and general law of coal and gas outburst are explained based on inoculation process, energy and destroy ability of the physical ex plosion, and some other problems for example coal and gas outbursts by itself in cross cut are analyzed. Final ly, coal and gas outburst prediction indexes and the main efforts of preventing outburst are provided based on physical explosion conditions of pressure vessel. Besides, some outburst prevention measures are analyzed and evaluated simply. It is very important of putting forward pressure vessel physical explosion hypothesis for re vealing coal and ~as outburst mechanism.
Keywords：coal and gas outburstpressure vessel modelphysical explosion
Publication Date：2012-01-01
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：7( 261-267 )