IHC Offshore Tools

IHC Hydrohammer Piling hammers Noise Mitigation Systems

IHC Handling Systems Internal/external lifting tools leveling tools Gripper & Guiding tools Upending tools

IHC Seasteel Piling templates Fast Frame TiNS & TiS Version: 12-2013

Noise Mitigation System Research - Test – Commercial projects

6,5m

S1800 30m

3,5m

S800 30m

3,5m

S800 30m

2,2m

S300 8m

1,2m

S90 4m

0,3m

S30 3m

S2000 30m

6,0m

Pile

Hammer

er H O 2 Diameter

kilo Joule •  Outer screen •  Air gap between

inner/outer screen •  Inner screen •  Bubble screen

Extra features

•  Multi level bubble injection system

•  Multi size bubble injection

•  Isolated inner & outer screen

Pile guiding

•  Upper guiding •  Lower guiding

Creating barriers with different medium &

= FLOW supported project

Next NMS-6000 Riffgrund operational 01-2014 Pile integrity by integrated functionality

Each contractor is not only using a piling hammer.

A lot of tools and equipment is involved, consuming: • Deck space • Operators • Energy • Controls • Handling time • Costs • Etc…………..

Combining functionality in one piece of equipment is: • Speeding up the installation • Increasing workability • Ensuring accurate installation • Eliminating risks • Reducing costs

Next Generation NMS & Installation Equipment Research - Develop - Test - Innovate - Research - Develop - Test - Innovate

NMS Improvements

Thanks to FLOW support knowledge and experience is gained during the installation of the Riffgat project. Resulting in the next generation NMS with improved mitigation of approximately 9 dB. The overall under water noise mitigation is expected to be 20-29 dB on the SEL at 750 m.

Cost reduction by: ! Increased workability ! Enlarging the weather window ! Integrated installation tools more functionality ! Less risk ! Safety & comfort for crew ! Contingency by HiLo piling option ! Fatigue reduction piles 30-60% ! Fatigue reduction equipment ! Optimized pile design (by less fatigue to pile during installation) ! Reliable proved installation method (1782 foundations 1.82 – 6.5m) ! No down time (proven design and technology)

Cost reduction by border crossing cooperation between companies Utility company - Turbine manufacturer - Contractor - Equipment supplier - etc

Joint Project Handling Systems

& Hydrohammer

Cooperation example : Next Step NMS & LARS XL Mono Pile Water depth 40m - current 2 m/s - significant wave Hs 2.5 m - Period Tz 3-8s

Click to Start Movie

Thank you for your attention !

Henk van Vessem GSM +31653149031 h.vanvessem@ihcmerwede.com