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 |
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(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 |
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