It got its name from the fact that it is equipped with an endless chain of buckets that fill while scraping over the bottom. Its movement is facilitated by winches that swing the platform in semi-arcs around the anchor. It is a stationary dredger which is fixed on anchors. This is one of the oldest dredgers in existence. This type of dredging is conducted in a full column of water and does not involve draining the water body. Mechanical typically dredging takes place at the shoreline or off a barge. It transports the loosened material to the surface through the use of a bucket, clamshell, or other means. Mechanical dredges work by mechanically digging sediment from the bottom surface of a water body. The two main types of dredgers are mechanical and hydraulic dredgers. This classification is dependent on the method by which the specialized equipment transports sediment and other materials. Dredging MethodsÄredging processes can be split into two main groups or types. This brief video presents an overview of various dredging methods including mechanical, hydraulic, and hydrodynamic dredging. Mechanical methods presented include clamshell, backhoe, bucket ladder, and dragline hydraulic dredging methods presented include cutter head and plain suction. This video demonstrates various dredging methods including mechanical dredging, hydraulic dredging, and hydrodynamic dredging.
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