COBH MAIN DRAINAGE SCHEME
Project Description:
The Cobh main drainage project included 4 no. marine combined services outfalls discharging into Cork Harbour. The HDPE outfall pipes varied in size between 250 to 900mm in diameter, extending between 13 to 250m from landside. Bespoke structural and buoyancy design solutions were required at each outfall, to meet unique and complex geotechnical, tidal current, erosion, wave action, and sedimentation design parameters.
LCE undertook the lead civil and structural design role for all marine outfalls.
Scope Description:
Liaising with Cork Harbour Master
Site investigation scoping and procurement
Pipe design
Detailed FEA settlement analysis in 7m of very soft silt
Pipeline ballast and stability design to DNV and PDS010
Seabed evolution assessment
Hydrodynamic load assessment (Wave & Current)
Rock armour revetment/scour protection design to CIRIA guidance
Design of a bespoke 35ton floating concrete structure to support the outfall diffusers 250m into Cobh harbour
PROJECT DATA
Client:
Sorensen Civil Engineering Ltd.
(For Irish Water)
Project Location:
Cobh, Co. Cork
Project Duration:
2020-2021