How to Choose an Appropriate Dredger?

Dredging is usually focused towards the maintenance or enhancing the depth of anchorages, navigation channels, or berthing sections to confirm the safe passage of ships and boats. It is imperative to note that vessels do require a definite amount of water so as to float and not strike the bottom. The depth of water continues to rise over time once larger and larger vessels are installed.  

A dredge is demarcated as an apparatus that is utilized for excavation activity which is organized either partially or fully inundated underwater, primarily to gather bottom sediments and positioning them at a separate location. The selection of a dredger is quite critical and should be done considering several factors.

Below mentioned are some of the primary aspects to keep in mind before selecting a dredger.

Soil Conditions

The foremost factor to choose a dredger is decided by the soil type that needs to be dredged. For example, rock which hasn’t been treated usually limits the selection of dredgers to cutter-head or mechanical dredgers specifically designed for rock scouring. However, if the material is sand then it can be dredged successfully using different dredger types.

Transport Choices

The decision-making process is highly influenced by transport options. This aspect should be given primary importance when covering longer distances over water. The selection of dredgers vary depending on material transportation through land or water resources.

Water Depth & Dredging Location

The functioning of trailing suction hopper dredgers is proven efficient with entrance channels since sea and traffic settings make stationary plant not so desirable. Furthermore, the positioning of dredged material and placement areas do serve an important role while making the choice for a suitable dredger type. The dredging market has grown quite specific in regard to the application of a dredger based on location.

Finances

Finally, the focus on economics as well as ecological effects should be equally stressed. For instance, an effective dredger might not be available nearby to the work site; therefore, mobilization time along with cost should be included while making a decision.