pacificmaritimegroup

These heavy-duty cranes are often used for constructing ports and bridges. They are useful for loading and unloading heavy items to and from ships. They are also used for transferring equipment from one vessel or platform to another, moving around equipment on the sea deck, and recovering or placing equipment on the seabed - San Clemente Island Barge Service .

  Dredging is a displacement of soil, carried out under water. It serves several different purposes. One of the applications meets the need to maintain minimum depths in canals and harbours by removing mud, sludge, gravel and rocks. Maintenance dredging is now only a basic task, while other fields are growing in demand much faster: creating new land for port and industrial development; trenching, backfilling and protection work for offshore pipelines, coastal outfall pipelines and for cables laid on the sea bed; environmental dredging and clean-up of contaminated sediments; replenishment of beaches and coastlines, not only for coastal protection, but also for recreational uses - mechanical dredging . There are two methods of dredging: mechanical excavating and hydraulic excavating. Mechanical excavating is applied to cohesive soils. The dredged material is excavated and removed using mechanical means such as grabs, buckets, cutter heads or scoops. Hydraulic excavating is done with ...

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  We can provide turn key solutions using either hydraulic or mechanical dredging services for your small to medium size dredging project we can provide rental Truckable Tugs, Dump Scows, Spud Barges, and Flexi Float / Poseidon barges - hydraulic dredging .

    In pure hydraulic dredging systems, the digging and lifting force is either pure suction, suction assistance, or entirely. They are best suited to digging relatively small-sized loose material such as sand and gravel, marine shell deposits, mill tailings, and unconsolidated overburden. Hydraulic dredging has also been applied to the mining of deposits containing diamonds, tin, tungsten, niobium-tantalum, titanium, monazite, and rare earths. The digging power of hydraulic systems has been greatly increased by the addition of underwater cutting heads. The cutter suction dredge has a rotary cutting head or other excavating tool for loosening and mixing soil at the face of the mine - hydraulic dredging . Normally, the dredge is held in place during cutting by a pile called a spud. Winches and wire ropes are used to swing the dredge in an arc around the spud until all the material in the arc has been removed. The dredge is then moved ahead and the process repeated. The c...