摘要
应用自主研制的电荷感应系统,在三轴压缩条件下研究不同围压和孔隙压力对含瓦斯煤在破坏过程中电荷感应信号的影响规律。试验结果表明:在围压一定情况下,随着孔隙压力的升高,电荷感应信号减弱,孔隙压力对煤样压缩破裂产生的电荷感应信号起到弱化作用;在孔隙压力一定的情况下,随着围压的升高,电荷感应信号增强,围压对煤样压缩破裂产生的电荷感应信号起到强化的作用。
With the self-developed charge-induced equipment, the experimental researched effects of different confining pressure and pore pressure on charge signal during deformation and fracture of coal containing gas under triaxial compression. The results show that as the pore pressure increases, the charge induction signal weakened when the confining pressure is a certain value. The pore pressure plays a weak effect role in the charge induction signal produced during the coal sample deformation and fracture process. As confining pressure increases, the charge induction signal enhanced when the pore pressure is a certain value. The confining pressure plays an enhancement effect role in the charge induction signal produced during the coal samples deformation and fracture orocess.
出处
《煤炭学报》
EI
CAS
CSCD
北大核心
2012年第6期918-922,共5页
Journal of China Coal Society
关键词
含瓦斯煤
三轴压缩
力电感应
围压
孔隙压力
coal containing gas
triaxial compression
mechanical-charge induction
confining pressure
pore pressure
