Research Article
Geological Structural Surface Evaluation Model Based on Unascertained Measure
Table 1
Structural plane evaluation classification standard.
| Influencing factor indicator | Classification criteria | I grade () | II grade () | III grade () | IV grade () | V grade () |
| Uniaxial compressive strength Rc (MPa) | >150 | 150~120 | 120~80 | 80~30 | 30~0 | Rock quality designation RQD (%) | 100~90 | 90~80 | 80~60 | 60~30 | 30~0 | Rock integrity coefficient Kv | 0.75~1 | 0.55~0.75 | 0.35~0.55 | 0.15~0.35 | 0~0.15 | Joint trace length (m) | 0~0.3 | 0.3~0.5 | 0.5~0.8 | 0.8~1.2 | 1.2~1.5 | Strike (°) | 90~75 | 75~60 | 60~45 | 45~30 | 30~0 | Dip angle (°) | 0~30 | 30~45 | 45~60 | 60~75 | 75~90 | Fracture roughness coefficient JCR | 20~12 | 12~8 | 8~4 | 2~4 | 2~0 | Joint opening degree (mm) | 0~0.2 | 0.2~1.0 | 1.0~2.0 | 2.0~5.0 | >5 | Rock moisture content (%) | 0~20 | 20~30 | 30~45 | 45~65 | 65~100 |
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