Editorial: Shared commitment to best practices

Frank Verhoeven, President of IADC, shares his thoughts on todays’ issues related to the dredging industry and introduces the articles in this issue of Terra et Aqua. READ NOW

Study of slurry transport characteristics in a jet pump

In this study, the computational fluid dynamics (CFD) analysis method was used to simulate the mixing and transportation  characteristics of water and mud in a jet pump. By observing the fluid mixing law in the mixing chamber, throat and other structures,  the internal flow field distribution of the jet pump under different working conditions was compared and studied. As a result, the internal flow details and operation performance curves of a certain size jet mud pump were obtained. It provides theoretical support  for the optimisation design of a slurry jet pump in dredging engineering. READ NOW

Boskalis eliminates risk of implosion with new design for water box

Alongside pumping sand, managing the water level in the landfill is an important aspect of a dredging project. A water box, a metres-high structure in which planks can be positioned manually to keep the water at the desired level, is indispensable for this work. Boskalis recently won the Safety Award of the International Association of Dredging Companies (IADC) for its new, modular and, above all, safer design that eliminates the risk of incidents. READ NOW

Modernisation of the Świnoujście – Szczecin fairway

The idea of a modern maritime access route from the Baltic Sea to the Port of Szczecin in Poland was already born towards the end of 20th century. Quay walls in the neighbouring Port of Police, built in the 80s, were already constructed to accommodate a depth of 12.5 metres and initial modernisation works commenced in the early 90s. On 28 September 2018 the “Modernisation of the Świnoujście – Szczecin Fairway to a depth of 12.5 m” became a reality with the signing of the design and build contract between the Maritime Office Szczecin and the DIVO consortium (Dredging International NV and Van Oord). READ NOW

Terra et Aqua 172: complete issue

The autumn issue includes articles on Boskalis’ Safety Award winning water box design, a study on slurry transport characteristics in a jet pump and the modernisation of the Świnoujście – Szczecin Fairway project.