Research on Rock Fracture Surface Morphology Characterization under Brazilian Test

Table 1

The topow and snr values of every rock specimen's three lines and three sections.

Type (512)	100~612		200~712		300~812		Remarks
Specimen name	topow	snr	topow	snr	topow	snr
A1(R)							Rotating 30 degrees and loading rate 0.01 mm/min
Left	2.1177	28.2085	2.1159	25.9393	1.5968	24.4652
Middle	1.9712	28.2180	1.4164	28.2495	1.2095	25.5551
Right	1.1781	23.9738	0.9639	25.7714	1.1781	23.9738
A2(R)
Left	2.2407	34.5297	2.5247	34.3279	2.4520	33.4213
Middle	1.7688	33.1245	1.7326	33.3074	1.9929	32.0687
Right	1.8081	35.3026	2.0011	34.5894	2.2370	33.5251
A3(R)
Left	1.3008	25.9557	1.5986	28.4603	2.0848	28.5200
Middle	1.2364	29.0886	1.8016	31.4957	2.0572	30.4524
Right	0.9757	26.4687	1.8781	29.7323	2.0301	30.5159
A1							No rotation and loading rate 0.01 mm/min
Left	3.2335	35.8754	3.4921	34.3184	2.9084	34.0172
Middle	2.8837	33.9835	2.9557	36.4159	2.3353	37.2918
Right	3.3140	33.9046	2.9990	35.7784	2.5138	38.4240
A2
Left	2.0933	33.1073	2.3662	32.2579	1.8722	32.4429
Middle	3.0269	32.2409	3.2957	30.4491	2.2001	31.3141
Right	2.9895	31.5269	3.1478	32.4344	2.8276	31.6690
A3
Left	3.2394	33.0318	2.9002	32.3656	2.5331	31.6309
Middle	3.2955	32.5780	2.9246	31.7607	2.3966	32.2033
Right	2.8644	34.1870	3.1070	31.8447	2.7851	31.3484
B1							No rotation and loading rate 0.1 mm/min
Left	5.8236	38.1822	6.8673	38.6366	6.0365	36.8738
Middle	5.6538	36.8858	6.0551	35.0675	5.2399	33.8614
Right	4.8311	37.2445	4.6722	37.3302	5.1064	34.4377
B2
Left	1.3639	30.6591	1.9368	31.6115	2.4064	33.5190
Middle	1.0666	25.6068	1.4060	29.8606	2.2827	32.0451
Right	0.5385	20.5109	1.5407	25.3466	2.7123	29.6432
B3
Left	5.2237	32.8384	5.5274	32.2433	5.6112	32.0337
Middle	4.5047	32.7908	4.8225	31.1635	4.4957	31.6812
Right	4.1084	30.3081	4.0325	30.6452	4.1887	29.8764
C1							No rotation and loading rate 1 mm/min
Left	3.6874	35.6802	3.3102	36.3793	3.4515	32.1720
Middle	3.4373	35.3418	3.9961	33.5528	2.9594	31.7523
Right	4.0881	35.7650	4.0754	35.7602	3.7765	34.4293
C2
Left	3.3973	32.1173	4.2992	33.2094	3.0814	33.8700
Middle	3.4003	33.1038	3.2635	33.7587	2.8532	33.5898
Right	3.0218	34.3600	3.1333	34.0173	2.3638	37.2279
C3
Left	5.2012	35.4596	5.3326	34.6403	5.8940	35.6516
Middle	4.2759	39.1679	5.204410	37.4150	6.1175	34.4048
Right	4.8863	36.5049	4.4451	36.4781	4.7254	32.7833