Research Article
Shaking Table Tests for Seismic Response of Oblique Overlapped Tunnel
Table 3
Orthogonal design of similar material ratios.
| Mechanical parameters | Material ratio | E (GPa) | ρ (kg∗m−3) | C (kPa) | ϕ (°) |
| 1. Cement: coarse sand: soil: water = 1 : 15 : 5 : 2 | 0.32 | 2420 | 11.26 | 39.61 | 2. Cement: coarse sand: soil: water = 2 : 15 : 5 : 2 | 0.23 | 2440 | 23.95 | 42.64 | 3. Cement: coarse sand: soil: water = 1 : 12 : 5 : 2 | 0.10 | 2260 | 24.42 | 35.85 | 4. Cement: coarse sand: soil: water = 0.5 : 12 : 5 : 2 | 0.14 | 2270 | 10.47 | 34.80 | 5. Cement: coarse sand: soil: water = 0.5 : 10 : 5 : 2 | 0.19 | 2350 | 11.76 | 36.09 | Prototype (grade IV surrounding rock) | 1.3–6 | 2000–2300 | 200–700 | 27–39 |
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