Research Article
Experimental Study on 3D Roughness and Shear Failure Mechanism of Rock Mass Discontinuity
Table 3
Areas of natural rough rock joint surface models before and after the experiment.
| | Discontinuity | Area of the upper discontinuity (mm2) | Area of the lower discontinuity (mm2) | | Before test | After test | Change ratio | Before test | After test | Change ratio |
| | A1 | 2091.36 | 2022.53 | 3.29% | 2072.69 | 2018.78 | 2.60% | | A2 | 2013.01 | 2013.01 | 0.00% | 2156.83 | 2015.93 | 6.53% | | A3 | 2028.24 | 2034.52 | ā0.31% | 2178.09 | 2031.96 | 6.71% | | A4 | 2149.91 | 1987.12 | 7.57% | 2153.99 | 1984.53 | 7.87% | | A5 | 2037.10 | 2033.22 | 0.19% | 2030.56 | 2005.09 | 1.25% | | A6 | 2240.31 | 2107.97 | 5.91% | 2165.84 | 2114.88 | 2.35% | | A7 | 2075.97 | 2048.28 | 1.33% | 2146.45 | 2043.26 | 4.81% | | A8 | 2065.07 | 2033.19 | 1.54% | 2064.80 | 2035.32 | 1.43% |
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