Terra Et Aqua

Number 144 - September 2016

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Articles

Building with Nature: Sustainable Protection of Mangrove Coasts

PROF. H. WINTERWERP, T. WILMS, H.Y. SIRI, J. VAN T.D. VRIES, Y.R. NOOR, B. VAN WESENBEECK, K. CRONIN, P. VAN EIJK, F. TONNEIJCK

Building with Nature (BwN) is an innovative approach that combines natural processes with innovative engineering methods to realise sustainable projects. Permeable dams are being utilised as part of a BwN solution to help restore the eroding mangrove-mud coast of the Demak district in central Java, Indonesia.

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LuXeal - The Easy to Handle Watertight Mixture

FRANÇOIS DE KEULENEER, LUC GOIRIS, TIES VAN DER HOEVEN

Dredging works in the Juliana Canal in the Netherlands is currently being carried out and as part of the widening works, a new watertight layer has to be constructed. The contractor has decided on utilising a new and innovative watertight bentonite mixture, LuXeal, to prevent water leakages in the surrounding areas.

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Dredging Sound Levels, Numerical Modelling and EIA

DIANE JONES, KERRY MARTIN

Underwater sound from anthropogenic sources and its potential adverse effects on the marine environment is a topic of much global interest. This article gives an overview of known sound source levels for various dredging equipment and activities and describes a method used to extrapolate source levels.

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cover

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Permeable dams being constructed by locals in Demak, central Java, Indonesia to restore the eroding mangrove-mud coast in the region to prevent flooding.

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