A large excavator with an extraordinary arm descends into the ocean’s depths here in Mᴏɴᴀᴄᴏ, in front of the Nibox, to retrieve the vases using a sealed ecological dump that prevents the suspension of debris. The Principality of Mᴏɴᴀᴄᴏ is doing everything in its power to lessen the harm that its extension project will do to the environment. The projected Ase du Portier neighborhood is one of the goals that is currently taking shape at the underwater development site.

A large shipyard in Marseille is now producing 18 concrete caissons that will be delivered to the spot. According to a recent report by Bouygues Construction, Mimar Sinan hydraulic excavators, which resemble tiger dredgers, were initially used to extract containers of toxic material. This specific excavator includes a cable crane and an ecological container to prevent excavated materials from floating and merging with the water.

These sediments were transferred by boat to La Seyne-Sur-Mer, Fʀᴀɴᴄᴇ, where Envisan’s specialized treatment facility is located. The proceedings started on April 18, 2017, and ended on November 3, 2017. The suction dredge on the Francis Beaufort ship, which can operate on seafloors as deep as 56 meters, was used to remove clean sediments during this initial stage. According to Bouygues Construction, this dredge doesn’t overflow, or to put it another way, it doesn’t reject the water it collects with the silt, preventing it from raising the river’s turbidity.

The dredge then transports the sediments to a site below the ocean that was specifically picked to avoid encroaching on marine life. This region is a portion of Mᴏɴᴀᴄᴏ’s exclusive economic zone, 200 meters below the surface. To stop the turbidity from increasing, the sediments are deposited 77 meters below the surface.

Watching Enormous Excavator With An Impressive Arm Working Under The Deep Sea In Mᴏɴᴀᴄᴏ in the video below:

https://www.youtube.com/watch?v=ByI81XRLTMw&t=1s

Source: flash1088

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