Production estimates are key to budgets and schedules

7-8 November 2019. Ahoy, Rotterdam, the Netherlands

Burgmans SH, Brevet R and Miller G - in2Dredging, Australia

Summary: Accurate production estimates are key in determining budgets and schedules for any dredging project. This paper will take a different perspective on helping clients appreciate the pitfalls of optimistic budgets and unrealistic schedules.

Jet modelling of a drag head’s heel jet

• Unrealistic and optimistic budgets and schedules are an issue for both contractor and client
• Suction and discharge production rates can be reliably estimated for most projects
• Rock cutting production estimates should consider the entire cutting installation
• Typically, low jetting production rates in impermeable sand and stiffer clay can be accurately estimated
• Both contractors and clients can and should monitor dredges’ performance by acquiring digital data

Last update: 5 September 2019