Study on stress and strain and characteristics of acoustic emission in the process of rock failure

Through the characteristics of the acoustic emission parameters and the characteristics of time process in rock stress test, it explored the characteristics of time in the whole process of rock deformation until failure, found the relations of rocks stress strain and energy parameters of acoustic emission between stress and time in the whole process of rock failure. Through the relations of the comparative we can find that, the rate of acoustic emission and the energy parameters of acoustic emission have direct relations in the process of loading different rocks, but the size of the stress have not direct relations with the rate of acoustic emission and the energy parameters of acoustic emission. Finally find the rule of the change between the curve of stress-strain and the characteristics of acoustic emission in different rocks through the granite and limestone compression test.