The system has been designed for water depths of up to 1000 meters, but the technology can easily be extended for use in much deeper waters. Seatools designed and built the grab-positioning ROV and its control system, including full 3D motion compensation. The solution used for the project at hand was the grab excavation system (GES). IHC MTI BV - Coordinator (NL) MHWIRTH GMBH (DE) Dredging. This is especially so because of boulders that span up to several meters in size, changing soil conditions, soils that consist of stiff clay, up to 750 kPa, and hard pan layers.Īs a consequence, a new deep-sea excavation method was required to excavate through various soil conditions at these depths. Thus, deep sea mining is yet to attain a Technology Readiness Level (TRL) sufficient to. IHC Mining is Royal IHCs division that provides integrated solutions for the onshore, nearshore and deep-sea mining market. The differences between the sides are profound and highlight a critical global dilemma: how can we produce the metals we. At this depth, the use of traditional excavation methods such as a suction hopper dredger, is very difficult. Deep-sea mining will only worsen our ecological woes, they maintain. For the Whiterose project, glory holes needed to be created at a depth of 150 meters. Assets are protected when they are lowered into the seabed at a depth of at least 9 meters into so-called glory holes. Innovative deep-water dredging technology with high level of automationįor the protection of subsea assets in iceberg-rich environments, protection from iceberg scouring is a prerequisite.
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