Application-Eterne Machinery

Home
Product

Dredger Amphibious Excavator Amphibious Dredger Platform Aquatic Weed Harvester Mining Equipment

Cutter Suction Dredger Jet Suction Dredger Chain Bucket Dredger

Excavator Pontoon

Gold Washing Plant Vibrating Screen Trommel Scrubber Othere Mining Machines
Application

River Regulation and Navigation Channel Dredging Reservoirs, Artificial Lakes, and Retention Basins Ports and Harbors (Channel Maintenance and Expansion) Coastal Protection, Beach Nourishment, and Shoreline Reinforcement Marine Sand Mining (Nearshore and Shallow Sea, Land Reclamation) Mining and Gold Dredging (Localized Dredging and Tailings Management)
About Us
Service
Blog
Contact Us

Language

Mastering your dredging challenges

As a company operating in the dredging market, you face a number of challenges. At Eterne Dredging we fully understand these challenges and work with you to find the best approach and solution. Different issues ask for different approaches, dredgers, dredging equipment and services. Read all about it in the following articles.

Different dredging solutions

Depending on which stage of a dredging project you are at we can offer different solutions to assist you.

01 River Regulation and Navigation Channel Dredging

Purpose: Maintain navigable depth, remove riverbed siltation, restore flood discharge sections, and eliminate shipping obstacles.
Recommended Features: Adjustable suction pipe, cutter ladder, stable base for nearshore operations.
Key Considerations: Riverbed topography changes, slurry pipeline routing (bridge crossing/riverbed protection), ecological sensitivity (fish migration seasons), and chain effects of upstream erosion and downstream siltation, as well as legal permits.

CSD: Suitable for cohesive mud, sand, and gravel; strong cutting power, high efficiency, long-distance slurry transport.

Jet Suction Dredger: Best for loose silt and sandy rivers; lower cost and energy use, but less effective for hard deposits.

Amphibious Dredger: Ideal for shallow zones and wetlands; can operate directly onshore, highly flexible.

Amphibious Excavator: Best for localized dredging such as near bridge piers or in confined waterways.

02 Reservoirs, Artificial Lakes, and Retention Basins

Purpose: Remove sediment to restore storage capacity, extend service life, improve water quality, and eliminate eutrophication.
Recommended Features: High-powered CSD with cutters adapted for cohesive sediments, slurry pumps, and solid–liquid separation systems to reduce discharge.
Key Considerations: RSlurry disposal (in-situ washing, transport, or dewatering), water quality impacts (increased suspended solids), phased dredging with settling ponds or dewatering sites.

CSD: Cuts consolidated sediments, highly efficient, pumps slurry directly to disposal sites.

Jet Suction Dredger: Economical and fast for loose reservoir silt.

Amphibious Dredger: Flexible in fluctuating water levels or gentle reservoir banks.

Amphibious Excavator: Suitable for localized, shallow water, mechanical removal of eutrophic silt or waste.

03 Ports and Harbors (Channel Maintenance and Expansion)

Purpose: Maintain depth, expand berths, and remove silt or sediment.
Recommended Features: Medium to large CSDs with long-distance pumping systems and stable platforms, often combined with cofferdams or soil solidification equipment.
Key Considerations: Navigational disruptions during operations, need for port authority coordination; sediment contamination (heavy metals, organics) requires prior testing and compliant disposal.

CSD: The most common solution; handles hard deposits with strong cutting and long-distance slurry transport.

Amphibious excavators: are used in ports and docks for channel maintenance and expansion, efficiently performing dredging, slope shaping, and underwater construction in shallow or soft terrain areas.

04 Coastal Protection, Beach Nourishment, and Shoreline Reinforcement

Purpose: Sand replenishment, coastal erosion control, shoreline and revetment preparation.
Recommended Features: Shallow-draft, maneuverable CSDs or shore-based pump stations with pipeline systems.
Key Considerations: Proper sand grain size (avoid excessive fines that cause turbidity), construction timing to avoid ecological sensitivity (bird nesting, turtle hatching), and coastal sediment dynamics.

CSD: Transfers nearshore sand to the beach for nourishment and land reclamation.

Jet Suction Dredger: Efficient for fine sand collection and short-distance transport

Bucket Chain Dredger: Can extract sand but slower, less suitable for large-scale nourishment.

Amphibious Excavator: Effective for tidal flats, shoreline repair, and dike reinforcement.

05 Marine Sand Mining (Nearshore and Shallow Sea, Land Reclamation)

Purpose: Extract construction sand, reclaim land, and supply port fill materials.
Recommended Features: High-power cutterheads, reinforced structure, slurry pipelines for long-distance pumping or direct transfer to barges.
Key Considerations: Ecological impact (benthic organisms, turbidity plumes), coastal erosion risks, and legal permits (sand mining rights).

CSD: Widely used for reclamation and artificial islands, with long-distance slurry transport.

Jet Suction Dredger: Efficient for shallow marine sand mining, especially construction aggregates.

Amphibious Excavators: are used in coastal and shallow-sea sand mining for land reclamation, efficiently excavating marine sand in areas where conventional equipment cannot operate.

06 Mining and Gold Dredging (Localized Dredging and Tailings Management)

Purpose: Support alluvial mining, tailings cleanup, and slurry transport for mineral processing.
Recommended Features: Wear-resistant pipelines, integration with mineral separation systems (e.g., vibrating screens, centrifugal concentrators).
Key Considerations: Abrasion from rocks and gravel requires protective liners and prescreening; environmental impact and legal mining rights must be secured.