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What is Observation Approach in Excavation Design about?
Excessive wall deflection during deep excavation can cause damage to nearby foundations and underground utilities through induced movements and surface settlement cracking. Lowering the groundwater table increases consolidation settlement in soft clay soils due to higher effective stress. Observational approach during deep excavation involves checking design adequacy, anticipating problems, modifying design if needed, optimizing design, making contingency plans, and avoiding delays.
- Author
- Hoang An Tran
- Language
- EN