Complete issue 125 - IADC Dredging

TASS (Turbidity Assessment Software) has been developed to address a need recognised by the dredging industry that the quality of predictions of the effects of dredging for Environmental Impact Assessments must be improved. Shown here, the results of TASS models are being validated by the Survey vessel Corvus, conducting experiments in the plume of a trailing suction hopper dredger (see page 14).

Terra et Aqua 125 – complete issue

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Underwater Sound in Relation to Dredging (CEDA Position Paper)

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Validation of the Tass System for Predicting the Environmental Effects of Trailing Suction Hopper Dredgers

Authors: Arjan de Heer | Jeremy Spearman | Stefan Aarninkhof | Mark van Koningsveld

Models created by researchers using innovative software have been tested and validated by monitoring trailers during dredging operations.

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“Work Safe” – An Innovative System of Safe Work Practices (IADC 2011 Annual Safety Award)

Employees lead the way in safety awareness and in finding practical tools for use “right here and right now” resulting in greater overall on-the-job safety.

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When is an Escalation Clause Necessary? Dealing with Price Fluctuations in Dredging Contracts

Authors: David Kinlan | Dirk Roukema

Unexpected costs resulting from fluctuations in prices for raw materials,fuel and labour can add extra financial risks for dredging contractors and clients.

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Articles in this issue