Study of characteristics of coal gas radiation in acoustic field
Abstract：In order to study the law of stress evolution of coal contained gas and characteristics of gas radiation in acoustic field, a self-developed coal gas desorption set was used to build physical model of coal gas radiation in acoustic field. The total stress of coal body, gas pressure and velocity of gas radiation in the process of coal gas radia- tion in acoustic field were monitored. Experimental results show that the total stress of coal body decrease with time ac- cording to logarithmic law in acoustic field. Experiments also show that the mechanical damage effect and periodic vi- bration effects of acoustic waves can promote coal gas desorption and radiation.
Keywords：coal gasacoustic fieldradiationdesorption
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：4( 264-267 )