Read the latest issue of Terra et Aqua featuring articles covering dredging projects as well as the topics of safety, socio-economics, technical innovations and the environment.

Articles in this issue

Can surface turbidity plume generation near a Trailing Suction Hopper Dredger be predicted?

A surface plume from overflow can stay suspended for long periods and distances, resulting in negative environmental impact through increased turbidity and sedimentation. Generation of a surface turbidity plume from the overflow of a Trailing Suction Hopper Dredger is investigated by a process-based, detailed Computational Fluid Dynamics model.

DOWNLOAD PDF Document | 4,19 MB
Monitoring of settling and consolidation of mud after water injection dredging in the Calandkanaal

As regular maintenance and relocation of sediment deposits are highly expensive, Port authorities seek more efficient solutions for reducing the costs and CO2 emissions of maintenance dredging. One solution, water injection dredging (WID), is carried out for maintaining the sediment deposits which predominantly consist of clay and silt. WID has been proven to be a cheaper solution by leaving the sediment in place, eliminating substantial costs for relocation of the dredged sediment.

DOWNLOAD PDF Document | 4,1 MB
Interview: Panama Canal’s deputy administrator Ilya Espino de Marotta

Armed with degrees in both Marine Engineering and Engineering Economics as well as 35 years – and counting – of experience at the Panama Canal Authority, Ilya Espino de Marotta has blasted through the glass ceiling wearing a pink hard hat. Amongst the diverse roles she has under her belt, ranging from Marine Engineer in the shipyard to Vice President for Transit Business, Ilya has notably led the Canal’s expansion as head engineer and now oversees operations from the second highest position at the authority.

DOWNLOAD PDF Document | 3,38 MB
Soft mud: field performance related to lab experiments, modelling and analysis of time-dependent processes affecting consolidation

Self-weight consolidation plays a major role in the creation of land using mud, the ripening of mud layers and, also, in the storage of contaminated mud and slurries in ponds.

DOWNLOAD PDF Document | 3,13 MB
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Published September 2020