Research Article
The Influence of Small Clear-Distance Tunnel Construction on Adjacent High-Voltage Transmission Tower Foundation
Table 1
Material parameters of soil and lining structure.
| | The soil or structure | Density (kg/m3) | Elasticity modulus (MPa) | Poisson’s ratio | Frictional angle (°) | Cohesion (kPa) |
| | Miscellaneous fill | 1600 | 7 | 0.35 | 19 | 22 | | Loess soil | 1680 | 8 | 0.32 | 21 | 23 | | Silt | 1730 | 10.6 | 0.31 | 22 | 26 | | Silty clay | 1780 | 12.5 | 0.29 | 21 | 27 | | Primary lining | 2500 | 32000 | 0.15 | — | — | | Secondary lining | 2500 | 36000 | 0.15 | — | — | | Concrete | 2500 | 30000 | 0.20 | — | — |
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