Mooring caisson removal
Five caissons which have been used to moor a spare lock gate needed to be removed and transported.
The heavy lift shipping market is one like no other, it entails the hoisting of heavy cargoes (>300 tons) using shipboard cranes.
Our markets
The heavy lift shipping market is undergoing a significant shift from exclusively topside operations to subsea installation and decommissioning work. Heavy lifting on land, with a solid foundation under the crane, is already a complex procedure, however when the whole system is on a floating vessel, a whole new set of variables gets introduced. Vessel stability, ballast to correct heel and trim and the restricted space available all play a role in the engineering of a heavy lift. Stowage plans, hoisting plans, rigging arrangements and seafastening are all items that require expertise and experience.
Since most heavy lift cargoes are unique, they require very careful planning and coordination down to the smallest detail. Detailed information about the cargo and of the loading and discharging locations are studied in the preparation phase, often even before a contract is actually booked. In certain instances the cargo requires specialized lifting tools that need to be designed and engineered so that the cargo can even be lifted onto the heavy lift shipping vessel. Our unique approach and out-of-the-box mentality ensures safe loading that meets client requirements and surveyors’ standards for warranty at sea.
Naval Architect
The actual size and weight of the cargo often determine whether a load is lifted with a single crane or with two cranes simultaneously. Both types of lifting create their own set of challenges and have specific advantages and disadvantages. During dual lifts, the cargo is very stable, in other words it doesn’t swing around the hook as with a single lift. On the other hand, dual lifts restrict access to the vessel’s hold and also require the load to be displaced between the cranes during the loading process.
In order to lift any specific load, the heavy lift operators have a number of specific equipment at their disposal. Shackles, grommets and lifting / spreader beams are all items that are required to secure a load in a safe and effective way. The combination of the various items is typically described in a detailed rigging plan that takes safe working loads and all angles in to account.
Are you facing a challenge?
What sets us apart?
Saltwater positions itself as a partner for custom engineering solutions. A proven track-record demonstrates that we are competent and that we are able to face any naval engineering challenge. What makes us stand out is our agility. Being agile is in our DNA and enables us to adapt quickly and move fast when needed.
We pride ourselves in being transparent and reliable. These are bold claims that we are staking every day. We communicate loud and clear, we manage expectations, we commit to promises made and we take ownership of a situation when needed.
The expertise of Saltwater in practice
Five caissons which have been used to moor a spare lock gate needed to be removed and transported.
Saltwater was contracted to assist with the verification of the mooring lay-out for several vessels.
The system can be disassembled and placed inside 40-foot containers, allowing the structure to be transported across the globe.
Exchanging lock doors at the Volkeraksluizen to keep them running smoothly.
This three mast clipper needs refitting and upgrading before starting the SDG World Tour.
This website uses cookies so that we can provide you with the best user experience possible. Cookie information is stored in your browser and performs functions such as recognising you when you return to our website and helping our team to understand which sections of the website you find most interesting and useful.
Strictly Necessary Cookie should be enabled at all times so that we can save your preferences for cookie settings.
If you disable this cookie, we will not be able to save your preferences. This means that every time you visit this website you will need to enable or disable cookies again.
More information about our Cookie Policy