Dewatering: CAISSONS
Excavation from within the permanent structure.
If the site is on land, the structure is built in place.
If the site is offshore, the structure is floated into position.
- To reduce the frictional resistance between the caisson and the surrounding ground:
- Add weight
- Bentonite clay slurry is injected at the soil-structure interface.
- Jetting is used in cohesionless soils.