Choosing between trailer suction hopper and grab dredgers, Civil Engineering

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Question

In search reclamation, what are considerations in choosing between trailer suction hopper dredgers and grab dredgers?


Answer

Trailer suction hopper dredgers are vessels that remove material off seabed through hydraulic suction by means of pumps. During a dredging operation, combination of soil and water is transported through suction pipe to storage hoppers. Important turbulence inside hoppers keeps dredged mixture in deferral and this have to be minimized to improve material to settle swiftly prior to course of overflowing. This machine is incomplete to dredging relatively low-strength substance. Moreover, they cannot be deployed in shallow waters and instead grab dredgers have to be used. Though, its dredging capacity is higher than that of grab dredger and it be capable of be assembled in comparatively deep-water region.

 

 


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