Our IADC Safety Award 2017 Nominations

IADC (International Association of Dredging Companies) is the global umbrella organization for contractors in the private dredging industry.

IADC presents its Safety Award each year to encourage the development of safety skills on the job and to reward people and companies active in the dredging industry demonstrating diligence in safety awareness in the performance of their profession. 

This year JDN got nominated for four ITA related working methods:

IADC Award 2017 Nominee: Hatch Covers for Deck Hatches

Hatch covers for deck hatches

When a low deck hatch is being opened, it quickly becomes a dangerous situation. Falling in an unprotected open hatch presents high potential for a fatal injury. New vessels are designed with waist-high coamings around hatch openings. Older vessels leave its crew vulnerable. Many types of ad-hoc barriers have been created to resolve the issue throughout the dredging industry.

TSHD Captain Nuñez' crew went (a step) further imagining an answer to the problem: stationary stanchions. Surrounding the deck hatch, the attachment makes the area along the opening safer: whether it is in the open or closed position, or anywhere in between. By removing the safety pin which secures the stanchion, the add-on can be removed when necessary. This ensures that the solution is easy to use. Older vessels in the fleet can be retrofitted with the stanchions: a sustainable solution.

IADC Award 2017 Nominee: Transport of Pipelines Optimization

A common activity on reclamation sites and logistics yards is the transport of landlines with trucks. Jan De Nul Group optimized and enhanced the handling and transport of dredge pipes by means of three techniques: the use of DHATEC cradles, modular spreaders and C-pipe hooks in combination with soft slings.

The combination of these techniques improves the efficiency of the job, the safety during the handling and transport, as well as the safety and the ergonomics of the riggers.

The DHAHTEC cradles are mounted on the truck platform, adjustable to the pipeline diameter, and secured with lashing straps the load on the truck. The C-pipe hooks are attached to a soft sling which makes it safer and ergonomically easier for the rigger to handle. And thanks to the use of the spreader beam, the soft slings with attached C-pipe hooks are positioned optimally by using taglines so that the riggers can easily attach the load from the ground.

The revised method is being implemented across Jan De Nul’s global activities as it has proven to be beneficial to all parties associated with pipeline transport.

Transport of pipeline optimization

IADC Award 2017 Nominee: Manholes Ventilation and Cover

Manholes ventilation and cover

A deck’s manholes which have been left open to ventilate tanks presents a safety hazard to crew. In addition, the tank becomes a receptacle for dropped objects and the loose cover takes up valuable deck space.

TSHD Captain Nuñez' crew optimised the pervasive situation with a covering which allows ventilation without wasting additional space. Stanchions are mounted over the manhole to hold the cover in place in the opened position. When the cover needs to be removed, an extension ladder with railings fits onto the bolts of the removed cover. Employees can then enter the enclosed space without hindering the use of a rescue tripod. When not in use, confined space equipment is conveniently stored in a box on deck.

The recurring hazard of unsealed manholes on the decks of many vessels can be resolved with this single solution.

IADC Award 2017 Nominee: Controlled Connection of Floating Pipelines

The manual process of connecting floating pipelines has always been a risky task and requires calm water conditions and competent skippers, deckhands and crane operators.

This controlled alternative was developed as a result of multiple technical reviews and trials with crew. The connection ends of the floating pipeline strings are set-up within a pair of catamaran pontoons. Between the Cutter Suction Dredger and floating pipelines, the connection process involves a customised tool in the pipe ring’s lug in order to keep the ring straight while a fibre rope pulls the ends of the pipelines closer. The ends are secured together with a hydraulic quick fit connection.

Standard 120m-long pipeline strings with a pontoon at both ends and easier access within the pontoon work space generate better project planning and reduced risk of open water operations. The overall system is 10% more expensive but the combination of reducing interrupted production periods due to bad weather conditions and reducing employee accidents, results in higher efficiency. On-going tests and user feedback have led to planned innovations: making the process remote controllable and more efficient and sustainable with solar-powered hydraulic packs.

ball joint