Research Article
Study of the Corrosion Characteristics of Tunnel Fissures in a Karst Area in Southwest China
| | Category | Density (kg/m3) | Porosity | Water pressure (Pa) | Permeability (m2) |
| | Protolith | 2680 | 7% | 1 × 105~6 × 105 | 1.5 × 10−14 | | Fracture core | 2000~2280 | 20%~35% | 7.9~790 × 10−12 |
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