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