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Sign upNovember 1, 2023
Région Occitanie Pyrénées Méditerranée
Port-la-Nouvelle
One of the most recent successes for the ACCROPODE(tm) application is the New Port of Port-la-Nouvelle located in la Région Occitanie Pyrénées Méditerranée. This new port facility is protected two rubble mound breakwaters covered with ACCROPODE™ II armour units ranging from 5 tons up to 33 tons. The 2,4 km long North breakwater is founded on the seabed down to -15m and protects the port from eastern and southern waves. A total of 16 000 armour units have been pre cast in a specific factory located next to the site. The armour units were placed using cranes and large excavators. The use of the ACCROPODE™ technology allows to reduce the use of concrete compared to older generation armour units while containing its footprint on a minimum surface. Eventually, high interlocking units avoid continuous reloading of blocks for maintenance, and they are more cost and co² emission effective.
This ACCROPODE™ solution allows to save approximately 50% of concrete to be used for the protection of this rubble mound breakwater compared to the standard solutions such as Tetrapode or concrete cubes. As a consequence, it also reduces the carbon footprint by half compared to older solutions. More saving can also be considered for the maintenance of such breakwater, because unlike the TTP or cubes there is no need of re-loading the armour layer regularly.
The ACCROPODE(tm) technology has been the benchmark single-layer armour unit since 1981 and has evolved into several subsequent concepts such as ACRROPODE II and ECOPODE. It has been deployed more than 200 times in 48 countries, in settings of all types. It is simple, robust, reliable and easy to fabricate using basic techniques. It can be adapted seamlessly to all types of structure. As is the case with all CLI armour units, it has a high stability coefficient derived from its shape as well as from the associated placing techniques. It can be used on structures of all types from coastal defences in shallow water to large breakwaters designed to protect ports or nuclear power plants. Last but not least, this is a technology with minimal maintenance costs since these structures are normally intended to withstand the design wave without sustaining damage. CLI is a subsidiary of Artelia, a french and international engineering group especialised about climate actions and projects
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