Over nearly 50 years of publication, Terra et Aqua has benchmarked innovative maritime solutions through more than 150 issues. Articles are available here as well as in IADC’s Knowledge Centre.

150
Published April 2018

Terra et Aqua 150 – complete issue

Read the complete issue containing articles, upcoming events, an interview and book review.
149
Published January 2018

Terra et Aqua 149 – complete issue

Read the complete issue containing articles, upcoming events, an interview and book review.
148
Published September 2017

Terra et Aqua 148 complete issue

Read the complete issue containing articles, upcoming events, an interview and book review.
Terra et Aqua 147
147
Published June 2017

Terra et Aqua 147 – complete issue

Read the complete issue containing articles, upcoming events, an interview and book review.

Safety on Site

One in five fatal accidents occur in construction and a high percentage of it involves a man on the ground. This article explains how companies can significantly reduce the number of potential accidents on the construction site by implementing strict safety protocols; separating pedestrians and machinery on the site; and what employees can do to maintain a safe working environment.

ReefGuard: A Scientific Approach to Active Reef Rehabilitation

ReefGuard, a mobile coral breeding facility provides a highly controlled environment to aid in integrating the breeding and outplanting of corals. This article gives a detailed look into how proven small-scale coral breeding techniques can be scaled-up and applied in practice to promote environmental gain around marine infrastructure projects.
Terra et Aqua 146
146
Published March 2017

Terra et Aqua 146 – complete issue

Read the complete issue containing articles, upcoming events, an interview and book review.

Valuing Variations In Dredging Contracts

Authors: David Kinlan
Variations are essential in dredging contracts and they have the potential to generate extra costs and pose significant delay to projects. So, what is the best way to go about reaching a fair valuation in variations in dredging contracts?
Safety is an important issue in the dredging industry. IADC has established the IADC Safety Award to encourage the development of safety skills and safety awareness in the industry. Read about the different nominations and winner of the IADC Safety Award 2016.
145
Published December 2016

Terra et Aqua 145 – complete issue

Read the complete issue containing articles, upcoming events, an interview and book review.

Improving Safety

GeoSea, member of the DEME Group won the IADC Safety Award 2016 for its "Enhanced muster station" aboard the jack-up vessel, Neptune. The DEME Group continues to invest heavily in innovative ideas and initiatives regarding safety that includes the "CHILD5" campaign.

IADC Safety Award 2016

The IADC Safety Award was established to encourage the development of safety skills and safety awareness in the industry. The eight nominations of the IADC Safety Award 2016 highlight innovative ideas and diligence regarding safety shown by companies in the dredging industry.

A Review of the FIDIC Blue Book (Second Edition)

In 2006, FIDIC published a specialised contract for dredging and reclamation activities – the FIDIC Form of Contract for Dredging and Reclamation Works. Ten years later, the second edition of this book has been released with updates to better reflect actual practice and to increase usage of the book.
Permeable dams being constructed by locals in Demak, central Java, Indonesia to restore the eroding mangrove-mud coast in the region to prevent flooding.
144
Published September 2016

Terra et Aqua 144 – complete issue

Read the complete issue containing articles, upcoming events, an interview and book review.

Building with Nature: Sustainable Protection of Mangrove Coasts

Building with Nature 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 Building with Nature solution to help restore the eroding mangrove-mud coast of the Demak district in central Java, Indonesia.

LuXeal – The Easy to Handle Watertight Mixture

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
A panoramic view of multiple dredgers at work at the New Suez Canal. The project involved the largest number of dredgers ever deployed on a single project – 28 vessels and over 40 pieces of auxiliary equipment (Page 5) (Photo by Luuk Kramer; Courtesy of Challenge Consortium).
143
Published June 2016

Terra et Aqua 143 – complete issue

Read the complete issue containing articles, upcoming events, an interview and book review.

How Clear Communications Benefit Dredging Projects

Dredging projects impact a wide variety of stakeholders. Over the years dredging contractors and clients have become more aware of the public’s need for information. Keeping clear communications open with all stakeholders, especially the public can benefit dredging projects.

Safety in Mooring

Authors: Bram Sluiskes
The risks of mooring operations in the dredging industry cannot be overstated. Equipment, training and competence of personnel, and technology are the different factors that play a part in safe and efficient mooring work.
Dredging in rock can cause wear and tear and so cutter teeth needs to be replaced regularly. Efficient rock cutting is still a challenge facing the dredging industry especially since it is mostly an underwater process. Find out about a new developed method to improve rock cutting processes.
142
Published March 2016

Terra et Aqua 142 – complete issue

Read the complete issue containing articles, upcoming events, an interview and book review.

Fair contract conditions and competition

Authors: David Kinlan
FIDIC Conditions of Contract books are essential to the dredging industry. There is a whole suite of contracts for stakeholders to choose from to suit their needs. Discover when and why these contracts were made.
UXO (unexploded ordnance) present a safety risk to dredging vessels. Experts use various specialised tools to locate and salvage munitions. Shown here from left to right, a Heavy-Duty Work Class Remotely Operated Vehicle (HD-WROV), a towfish with gradiometer and an electromagnet for salvaging (page 15).
141
Published December 2015

Terra et Aqua 141 – complete issue

Read the complete issue containing articles, upcoming events, an interview and book review.