DUKC® Optimiser Maximising Cargo Throughput at a Bulk Export Port

At a bulk export port, the port authority aims to maximise cargo throughput at the port while maintaining safety. One key aspect of safety is restrictions on ship draft. Draft is the distance between the waterline and the bottom of the ship’s keel, which increases as more cargo is loaded. Most ports have restrictions on maximum draft for ships entering andleaving the port, as loading a ship beyond the safe draft limit may result in the ship running aground.

DUKC® Optimiser is a new tool that aims to simplify scheduling of ship sailing times and drafts for bulk export ports that use DUKC® software to calculate draft restrictions. DUKC® Optimiser also aims to find optimal schedules that allow ships to carry more cargo than schedules produced by human schedulers.

09 May 2014


BWS Online

For ports exposed to weather conditions that can induce significant motions on berthed vessels there is an ongoing risk to shipside and dockside personnel and equipment. Damage to ship, moorings and fenders is expensive to repair. Injury and death to personnel is tragic and intolerable.

09 May 2014


Experience using a DUKC®system at port Taranaki, NZ, R Barlow, WT O’Brien, P Atkinson, Capetown May 2002

The paper describes the studies that have been undertaken and the experience that has been gained since December 1999 in the development and operation of a Dynamic Underkeel Clearance (DUKC) system at Port Taranaki, New Zealand.

The major topics covered in the paper include:

  • The influence of new deep-draught container services
  • Preliminary studies undertaken to assess UKC requirements
  • Wave climate and transformation studies
  • the potential benefits of installing a DUKC system at the port
  • Customisation,
  • Assessment of the benefits

09 May 2014


Experience using dynamic underkeel clearance systems: selected case studies and recent developments, WT O'Brien, PIANC September 2002.

The Dynamic Underkeel Clearance (DUKC®) system is the focus of this paper. This innovation has increased drafts and widened tidal windows at several Australian ports since 1993, without compromising vessel safety. These improvements in port operation have provided economic benefits amounting to millions of dollars in decreased freight costs and increased cargo throughput, at a small fraction of the cost involved in gaining equivalent improvements by dredging.

09 May 2014


DUKC®Editorial World Port Development December 2007 – Clearing the way for a safe passage

The Dynamic Underkeel Clearance (DUKC®) system is the focus of this article. DUKC® is a unique maritime engineering software system developed for safer and more efficient navigation of large ships in shallow restricted waterways. World Port Development looks at the benefits it can bring.

09 May 2014


The official organ of the United Kingdom Maritime Pilots' Association

SQUAT: Are we out of our depth?

The role of the pilot has never been easy to define but generally the Master pilot relationship results in a mutual understanding that works remarkably well considering the number of ship movements undertaken without incident throughout the world every day. Unfortunately a combination of circumstances will occasionally result in an incident. This article identifies the benefits of foresight of DUKC® verses the hindsight of what could go wrong and those “recommendations”.

09 May 2014


Under-keel clearance system saves millions of dollars and reduces danger to Great Barrier Reef

Under-keel clearance system saves millions of dollars and reduces the danger to Great Barrier Reef by Dr Terry O'Brien, OAM, Managing Director, OMC International.

09 May 2014


PIANC DUKC® Paper Estoril Portugal R2

The Dynamic Underkeel Clearance System (DUKC®) discussed in this paper has a 12 year track record as the leading UKC system, assisting more than 25,000 vessel movements without incident and directly generating in excess of $2 billion dollars in decreased freight costs and increased cargo throughput to port users and stakeholders. These gains have been achieved at a small fraction of the cost involved in gaining equivalent improvements by dredging.

09 May 2014