Out Now: Terra et Aqua #153

Out Now: Terra et Aqua #153

13 Feb 2019

Delve into this issue’s articles about sustainable dredging, grass-roots safety and a spillage estimator.

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What happens when individuals step up safety during dredging activities? By viewing routine processes and situations through a continuous lens of safety, individuals can help make operational processes on water or land safer. Eight solutions nominated for IADC’s Safety Award demonstrate the benefit of this approach.

Are the days of the double-walled pump housing numbered? For several decades, the preferred solution for isolating dredging pumps within a vessel has been double-walled pump housing. To bypass this housing type’s intrinsic problems, Damen formulated an alternative which is discussed in an article by author Ewout van Duursen.

 

Can a preliminary model describe CSD spillage due to centrifugal advection? Depending on its size and installed power, a Cutter Suction Dredger is capable of cutting a wide range of soil types. Although precise and relatively efficient, a CSD can spill significantly. A team of authors including Jeroen Werkhoven, Bas Nieuwboer, Alden Louis, Robert Ramsdell and Sape Miedema proposes a preliminary model which describes spillage due to centrifugal advection.

In addition, CEDA and IADC’s book Dredging for Sustainable Infrastructure is presented. The recently-launched publication promotes value-added projects by conveying an understanding of natural and socio-economic systems, and proactive stakeholder engagement.

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