Research Article
Influence Zone Division and Risk Assessment of Underwater Tunnel Adjacent Constructions
Table 1
Adjacent construction influence zone and risk classification.
| No. | Adjacent construction influence zone | Risk level | Accepted guidelines | Disposal guidelines | Control plans |
| 1 | Extensively influence zone | Level I | Unacceptable | Risk control measures must be implemented to reduce the risk, at least to a level that is either acceptable or unwilling | Risk warning and emergency response programs, or program amendments or adjustments should be prepared |
| 2 | Strong influence zone | Level II | Unwilling to accept | Risk management should be implemented to reduce risk, and the cost of risk reduction should not be higher than the risk after the risk of loss | Risk prevention and monitoring should be implemented and risk management measures should be formulated |
| 3 | Fairly Strong influence zone | Level III | Acceptable | Risk management should be implemented and risk management measures can be taken | The daily management and monitoring frequency should be increased |
| 4 | Weak influence zone | Level IV | Ignorable | Can implement risk management | Examination can be conducted daily |
| 5 | No influence zone | None | No | No need to consider the risk | General management should be checked |
|
|