Experimental Study on Seepage Characteristics of Fractured Rock Mass under Different Stress Conditions

Table 2

Results of penetration test.

Sample number	Confining pressure/MPa	Peak stress/MPa	Peak strain%	Maximum permeability coefficient/10^-7 cm·s^-1
ST-2-1		15.2	6.2	621
ST-2-2	2	14.0	5.6	567
ST-2-3		16.1	5.9	651
ST-4-1		18.6	4.8	214
ST-4-2	4	19.3	5.2	236
ST-4-3		17.8	4.9	227
ST-6-1		31.2	5.1	152
ST-6-2	6	32.6	5.5	147
ST-6-3		33.7	6.3	161
ST-8-1		39.8	6.3	97
ST-8-2	8	41.3	5.8	94
ST-8-3		40.8	5.7	91