Research Article
Calculation Method for the Critical Thickness of a Karst Cave Roof at the Bottom of a Socketed Pile
Table 2
Mix proportion and mechanical properties of the similar material.
| | Similar material | Unit weight (kN/m3) | Uniaxial compressive strength (MPa) | Mass ratio of cement, sand and water | Gypsum content (%) |
| | Socketed pile | 21.3 | 1.02 | 1 : 5.2 : 1.5 | 2 | | Overlying soil | 19.6 | 0.06 | 1 : 15 : 1.5 | 1 | | Underlying bedrock | 20.3 | 0.25 | 1 : 8 : 1.5 | 1 |
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