Scope of works
Cefas requires the provision of specialist marine geotechnical services to support two vibracoring surveys within the Irish Sea Firth of Clyde or North Sea. The Supplier is required to achieve sediment cores each with a target penetration of up to 3 m from pre-planned stations for the delivery of our environmental sampling programme. The Supplier is required to provide a 3 metre vibrocorer, complete with spares, coring consumables (coring liners etc) core splitting and core cutting equipment, and suitable individuals to undertake operations of the vibrocorer on a 24 hrs period (2 x 12 hrs shifts back-to-back) alongside deck crew. The Supplier’s personnel will be accommodated onboard the RV Cefas Endeavour for the duration of the survey. Cefas will provide suitable onboard cabin accommodation, bedding and welfare facilities, together with meals and refreshments as part of the vessel’s normal catering provision. The RV Cefas Endeavour has en-suite accommodation for scientific and technical personnel. The Supplier should therefore not include separate accommodation or subsistence costs for periods spent onboard the vessel. Any specific dietary requirements should be notified to Cefas in advance of mobilisation. The Supplier will remain responsible for all travel and associated costs required to mobilise and demobilise its personnel and equipment to/from the agreed port, unless otherwise stated. This should be reflected in the quote provided. The survey is scheduled for approximately ten to twelve days between the 1st to the 16th of November with the flexibility of +/- 5 days each side, with the availability to mobilise and demobilise equipment either in Lowestoft or a Port on the Southwest coast. The port will be confirmed by Cefas as soon as possible. Suppliers must be prepared to mobilise and demobilise from either location. Suppliers must provide evidence of valid and appropriate offshore survival training and medical certification, including BOSIET or STCW95 and a UK Offshore Operators Association-approved medical, or suitable equivalents. Original hard copies of all required certification and documentation will be required for inspection upon request at the time of vessel mobilisation. Please note general arrangement drawings of the RV Cefas Endeavour can be supplied upon Contract award for operational logistics if required. Requirement: The Supplier will liaise with Cefas before mobilisation to confirm the operational requirements, vessel interfaces, equipment layout, power supply, lifting arrangements, programme and health and safety requirements. A mobilisation plan shall be prepared and agreed by both parties in advance of installation. The Supplier will provide a fully maintained and function-tested 3 m high-powered vibrocorer spread, including its control system, constant-tension winch, core barrels, workshop container, essential spares and associated ancillary equipment. The proposed system shall be suitable for operations in water depths of approximately 150 m. The vibrocorer spread shall be delivered to the nominated mobilisation port and installed aboard the RV Cefas Endeavour. Following installation, the Supplier will complete appropriate equipment inspections, function tests and deployment checks, including a wet test where practicable. The Supplier will provide suitably trained and experienced equipment technicians to install, operate, maintain and demobilise the vibrocoring equipment. The base provision shall comprise of four technicians for operations of up to 24 hours per day (two technicians per 12-hour shift). The two technicians will be supported by RV Cefas Endeavour crew for the safe deployment and recovery of equipment. At each survey location, the vessel shall establish a safe and stable working position before the vibrocorer is deployed to the seabed using the vessel’s suitable crane or A-frame and lifting winch. Cefas shall provide the station position and water-depth information for each deployment.
- Type
- Request for quotation
- Tender
- Sector
- Healthcare & Medical
- Procedure
- Below threshold - open competition
- Classification
- Not published at source
- Original notice
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