CAJ | 학술논문

依托自行研发的含瓦斯煤热-流-固-力耦合吸附/解吸实验系统，测定了不同围压和孔隙压力组合条件下，煤样加载破坏过程中不同加载阶段的瓦斯解吸量，并对实验数据进行了拟合，分析了轴压、围压和孔隙压力对含瓦斯原煤解吸规律的影响。结果表明：在煤样整个加载破坏过程中，受载原煤瓦斯解吸量呈现先减小后增加的“V”型变化趋势，且最小出现在屈服强度阶段，最大出现在脆性破坏阶段；受载原煤瓦斯解吸量随围压的增大而减小，随吸附平衡压力的增大而增大。
의탁자행연발적함와사매열-류-고-력우합흡부/해흡실험계통，측정료불동위압화공극압력조합조건하，매양가재파배과정중불동가재계단적와사해흡량，병대실험수거진행료의합，분석료축압、위압화공극압력대함와사원매해흡규률적영향。결과표명：재매양정개가재파배과정중，수재원매와사해흡량정현선감소후증가적“V”형변화추세，차최소출현재굴복강도계단，최대출현재취성파배계단；수재원매와사해흡량수위압적증대이감소，수흡부평형압력적증대이증대。
In order to study the desorption law of loaded gas-filled raw coal, relying on own developed gasfilled coal heat-flow-solid-mechanical coupled adsorption-desorption experiment system, experiment determined the gas desorption quantity of different loading stage under different confining pressure and pore pressure, the experimental data were fitted, the influence of axial compression, confining pressure and pore pressure on gas desorption of raw coal was analyzed . The results showed that the gas desorption quantity decreases and then increases with the increase of axial compression, showing a “V” shaped variation, the minimum appeared in the stage of yield strength, maximum in brittle failure stage; the gas desorption decreases with the increase of confining pressure, with the increase of adsorption equilibrium pressure, gas desorption quantity increase as a quadratic function.