early contractor involvement dredging 2012 san diego rene kolman secretary general, iadc 23-10-2012
TRANSCRIPT
Early Contractor Involvement
Dredging 2012
San Diego
Rene Kolmansecretary general, IADC23-10-2012
• Traditional
• Partnering
• Alliance
Tang et al., derived from Terra et Aqua 113, 2008
Early contractor involvement
collaborative process, it aims to promote openness, trust, risk and responsibility sharing. There is an alignment of interest
• Client: once in a life time
Contractor daily business• Make use of the knowledge of the contractor• Consultant has limited experience• Reduce risk• Share benefits
Why ECI?
• Reduction prepration time 30-40%• Access to detailed cost data• Greater cost certainty• Increases innovations• Benefits of working in a team• Enables preparation of budget commentaries• Greater cost control in construction phase• Open and honest process
ECI benefits Nichols report 2007
Early contractor involvement
• Culture of dialogue• Broad understanding between ALL stakeholders• Early in process• Effective communication
Benefits of ECI, clients, 1
• State of the art knowledge present• Better understanding long term consequences• Better awareness and understanding of risks• Less adjustments later stages• No mediocre compromises
Benefits of ECI, clients, 2
Benefits of ECI, consultants, 1
• Knowledge of equipment and consequently of impacts
• Improved definition environmental impact assessment
• Improved designs• More realistic and reliable
project planning• Gaining knowledge
Benefits of ECI, consultants, 2
The Environmental Impact Assessment
6000 pages, main report & appendices
Special studies not included
Melbourne channel deepening
• Underwater canyon 80 meter deep
• Steep canyon walls• Sessile fauna on walls
(sponges, soft corals)• Marine National Parks
near by• Surrounding plateaus to
be dredged
Existing Situation
Melbourne channel deepening
Quarry tests
Lab tests
Specialized ripper draghead
Melbourne channel deepening
Entrance MitigationsSpill tests – suction improvement
Spill tests – suction improvement
Melbourne channel deepening
UAE, Abu Dhabi, Das Island
• Construct only tender by ADNOC dated August 2008
• Detailed design in 2008• Tender not awarded
(too expensive)• ADNOC evaluated
design• Re-tender Design &
Construct issued June 2010
UAE, Abu Dhabi, Das Island
• Extention of island with 190 Ha reclamation
• 20.5 mln m3• Compaction • Shore protection – 7 km
revetment• 3 mln tonnes rock• Placement of 36.000
Xblocs (7.2T)
UAE, Abu Dhabi, Das Island
Rotterdam port extension Maasvlakte II
Rotterdam port extension Maasvlakte II
ECI, invite us