Experimental Study on Sedimentary Rock’s Dynamic Characteristics under Creep State Using a New Type of Testing Equipment

Table 3

Experimental data of rock specimen’s cumulative disturbance deformation.

Impact loading	Strain ()	Perturbation at stress level 1		Perturbation at stress level 2		Perturbation at stress level 3		Perturbation at stress level 4		Perturbation at stress level 5		Perturbation at stress level 6
		1st	2nd	1st	2nd	1st	2nd	1st	2nd	1st	2nd	—
5 kg		3810	3928	4185	4298	4564	4700	4780	4934	5487	5866	6625
		97	99	102	111	116	135	131	133	175	163	304
		54.9%	56.6%	60.3%	61.9%	65.7%	67.7%	68.8%	71%	79%	84.5%	95.4%
10 kg		3750	3890	4105	4250	4412	4604	4830	5085	5409	5799	6267
		108	113	128	130	142	150	173	184	238	252	348
		55.3%	57.4%	60.5%	62.7%	65.1%	67.9%	71.2%	75.0%	79.8%	85.5%	92.4%

: rock’s creep value before the perturbation; : cumulative disturbance deformation.