Research Article
Engineering Classification of Jointed Rock Mass Based on Connectional Expectation: A Case Study for Songta Dam Site, China
Table 6
The pairwise comparison matrix for the evaluation index of rock mass quality.
| Evaluation index | Rock strength | Joint spacing | RQD | Roughness | Aperture | Weathering | Groundwater | Dip difference |
| Rock strength | 1 | 1 | 2 | 3 | 3 | 3 | 2 | 1 | Joint spacing | 1 | 1 | 1 | 2 | 2 | 2 | 2 | 1 | RQD | 1/2 | 1 | 1 | 2 | 3 | 3 | 2 | 1 | Roughness | 1/3 | 1/2 | 1/2 | 1 | 1 | 1 | 1/2 | 1/2 | Aperture | 1/3 | 1/2 | 1/3 | 1 | 1 | 1 | 1 | 1/3 | Weathering | 1/3 | 1/2 | 1/3 | 1 | 1 | 1 | 1 | 1/2 | Groundwater | 1/2 | 1/2 | 1/2 | 2 | 1 | 1 | 1 | 1/2 | Dip difference | 1 | 1 | 1 | 2 | 3 | 2 | 2 | 1 |
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