Underwater line intervention caisson for maintenance operations comprises sealing means on surfaces in contact with submerged vertical wall and lower protruding part engaging dock bottom

摘要

The intervention caisson comprises sealing means (4) located on the caisson surfaces in contact with the submerged vertical wall. There is a lower protruding part (2) relative to the caisson lateral edges which engages the bottom of a dock (3). The caisson comprises a filling valve (5) accessible from an access ladder (7).