Research Article
Analytical Study on Surface Settlement Troughs Induced by the Sequential Excavation of Adjacent and Parallel Tunnels in Layered Soils
Table 3
Information of the investigated tunnel cases.
| | Case no. | Soil profile | (m) | (kN/m3) | (kPa) | (°) | References |
| | 1 | Miscellaneous fill | 3.1 | 19.4 | 16.2 | 50 | Huang [32] | | Silty clay | 4.3 | 19.8 | 59 | 15.3 | | Sand | 3.1 | 19 | | | | Argillaceous siltstone | 10.5 | 20.5 | 125 | 32 |
| | 2 | Miscellaneous fill | 4 | 18 | 15 | 10 | Li [33] | | Round gravel | 6 | 19.8 | 25.9 | 31 | | Medium-coarse sand | 4.5 | 20.3 | 27 | 29.5 | | Gravelly sand | 9.4 | 20.2 | 29 | 30 |
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