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利用自主研制的电荷感应仪,建立单轴压缩条件下煤岩电荷感应试验系统和温度对煤岩电荷感应影响试验系统对煤岩电荷感应进行研究。得出煤岩温度升高能形成热电子发射,使煤岩产生电荷,但煤岩破裂过程中产生的主要电荷不是热电子发射产生的。根据电荷-能量联系定律,提出了煤岩变形破裂过程中产生的电荷信号是因煤岩能量释放而产生的观点。认为煤岩产生电荷量可作为煤岩释放能量的量度。煤岩释放能量越多,产生电荷越多,即测得煤岩电荷信号越强,说明煤岩释放能量越多。还解释了煤岩强度越大,破裂时产生电荷量也越多的现象,解释了不同性质煤岩体,破裂过程中释放能量相同而产生电荷信号不同的现象。可为进一步的研究提供参考。
Based on the self-developed charge sensor, the coal-rock charge induction system under uniaxial compression and the system of influence of temperature on coal-rock charge induction are established. It is concluded that the temperature rise of coal and rock can form the hot electron emission and make the coal and rock produce electric charge. However, the main charge generated during the rupture of coal and rock is not generated by the hot electron emission. According to the law of charge - energy contact, it is proposed that the charge signal generated in the process of deformation and fracture of coal and rock is generated from the energy release of coal and rock. It is believed that the amount of charge produced by coal and rock can be used as a measure of the energy released by coal and rock. The more energy coal has released, the more electric charges will be generated, that is, the stronger the coal-rock charge signal, the more energy it releases. It also explains the phenomenon that the larger the intensity of coal and the more electric charge generated during rupture, the different phenomenon of charged signals caused by the same energy released during rupture is explained. Can provide reference for further research.