Research Article
Study on the Floating of Large Diameter Underwater Shield Tunnel Caused by Synchronous Grouting
Table 2
Calculation parameters of surrounding strata.
(a) Silty clay |
| Unit weight
| Cohesion
(kPa) | Internal friction
angle (°) | Hydraulic conductivity (m/d) | Poisson’s ratio | Static lateral pressure
coefficient | Foundation coefficient (MPa/m) | Elastic modulus (MPa) |
| | 18 | 31.7 | 9.6 | 0.05 | 0.3 | 0.43 | 20.2 | 5.17 |
|
|
(b) Silty fine sand |
| Unit weight
| Cohesion
(kPa) | Internal friction
angle (°) | Hydraulic conductivity (m/d) | Poisson’s ratio | Static lateral pressure
coefficient | Foundation coefficient (MPa/m) | Elastic modulus (MPa) |
| | 19 | / | 24 | 8 | 0.31 | 0.45 | 13 | 8 |
|
|
