Some anchors rely heavily on their weight to provide ground resistance or anchoring capacity. These anchors while maybe considered dumb, are generally very heavily uses anchoring vessels across a multitude of soil and ground conditions. Generally, some level of holding is guaranteed, and this is fundamental to vessel moored operability and assurance especially for temporary..Read Article >
Case Studies and Insights
Here are some case studies which showcase recent projects successfully undertaken by the team at ONA Marine.
Clump Weight Insights and Considerations
Mooring Clump Weights General Clump weights are the simplest of omnidirectional and directional anchoring solutions. They are not efficient however offer some vertical capacity preventing uplift, therefore can be conveniently deployed to prevent both lateral and vertical loads combined. They can also be used to improve mooring systems by supplementing anchor catenary weights where additional..Read Article >
RPEQ Mooring Design, Supply and Installation Approval
The operational and legal risk associated with moorings can be substantially mitigated with sign off from RPEQ Engineers. Iit is good to see some regulatory authorities on the East Coast requiring sign-off of moorings from RPEQ engineers. GBMPA requires RPEQ sign off on Great Barrier Reef moorings and the Gold Coast Water Authority (GCWA) for..Read Article >
Mooring Maintenance Program – ATSB Learnings
Last week marks the 10-year anniversary of the foundering of the ship MV Tycoon, after failure of its mooring system, at Flying Fish Cove, Christmas Island. The incident highlights the need to not only inspect but also to manage mooring system integrity. ATSB findings include “Furthermore, the managers of the port had not implemented an..Read Article >
Maintaining the Mooring Integrity Baseline
The baseline in mooring asset integrity is the starting point to maintaining visibility on the condition and life expectancy of the mooring system. Loss of baseline is an emerging trend in large terminal moorings in the region. Typical contributors include lack of funding, lack of competent oversight, deficient maintenance programs and inadequate maintenance. The impacts..Read Article >
Used Drag Embedment Anchors – Risks
Used Drag Embedment Anchors in Australia – The Risks The risk of using second-hand or used anchors should be understood by unsuspecting end users and operators. Since 2010 there has been many mega projects involving the use of large drag embedment anchors in Australia. These projects have finished and as most of the anchors were..Read Article >