![]() Some common mechanical dredgers are briefed as follows: These are equipped with a grab or a bucket, which is driven on the loose bed sediments, then material get filled in the bucket and the bucket is then raised to transport it to the requisite disposal site. These are available in a variety of forms, but each has the same working principle of “hand-packing”. Whether mechanical or hydraulic, the different types of dredgers that help in the removal of the seabed sediments are: 1. Related Read: Cristobal Colon: The Largest, Hi-tech Ocean Dredger Other dredgers do not fit into the above two categories.Hydraulic dredgers work on the principle of adding large amounts of process water to change the original structure of the sediments, and.Mechanical dredgers which are suited for working in confined areas and are useful for removing the hand-packed material or debris,.Reclamation of areas damaged by oil spills or natural calamitiesĪlthough dredging can have very harmful effects on the marine and aquatic environment, in some situations it may be the only option available.īroadly the types of dredgers are classified into three categories (On the basis of the method employed for transportation, of dredged material from the bottom of the sea to the surface of the water):.Removal of contaminants from the sea bed.for replenishing the sand on public beaches which might have undergone severe coastal erosion. ![]()
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