
Dredging Stiff to Very Stiff Clay in the Wielingen Using the DRACULA® System on a Hopper Dredger
Dredging stiff clay is notoriously difficult. A newly patented system using high pressure waterjets in the hopper dredger's draghead has solved several operational problems. For his description of this innovative technique, the author was presented with a 2002 IADC Award at the PIANC Conference in Sydney, Australia.

Displacement Filling at Lumut, Sg. Dinding, Malaysia
The 2001 IADC Award winner presents a case study of a new method for extracting geotechnical parameters called Iternative Technique (IT).

Effect of Various Terminal Velocity Equations on the Result of Friction Loss Calculation
Winner of the 2000 IADC Annual Award, this study illustrates the considerable differences in friction loss values, used for calculation in pipeline systems, yielded by different equations.

Wind-Wave Induced Oscillatory Velocities Predicted by Boussinesq Models
An IADC "Most Promising Student" Award has been presented to a graduate of TU Delft for her work on determining the magnitude and direction of wave-induced sediment transport.

Cement and Soft Mud Mixing Technique Using Compressed Air-Mixture Pipeline: Efficient Solidification
The 1998 IADC Award-winning paper, presented at the WODCON XV in Las Vegas, explains an efficient new technique being utilised in Japan.

Emissions of Porewater Compounds and Gases from the Subaquatic Sediment Disposal Site “Rodewischhafe”
The 1997 IADC Award was given to this paper which was presented at the International Conference on Contaminated Sediment in Rotterdam, in September.

New Developments in Environmental Dredging: From Scoop to Sweep Dredge
The winner of the 1996 IADC Award, this paper describes one of the recent dredging techniques tested on the Ketelmeer and now being used in the Port of Nieuwpoort, Belgium.

Solids Transportation in a Long Pipeline Connected with a Dredge
Prediction of the aggregation process and an accurate estimate of the critical velocity in a pipeline may lead to more effective control of the diesel engines and other types of drives.