Trailing Suction Hopper Dredgers

“Facts About Trailing Suction Hopper Dredgers” describes self-propelled hydraulic dredgers with drag heads that suction up loose materials like sand.

Dredging Plant and Equipment

“Facts About Dredging Plant and Equipment” describes the specialised equipment that has been developed to perform various and specific dredging operations.

Dredging Equipment (on demand)

Dredging Equipment: Its evolution, capabilities and importance for maritime infrastructural works.

Trailing Suction Hopper Dredgers

Trailing suction hopper dredgers or “trailers”, are self-propelled ships with hoppers, which are storage areas in the hull for keeping dredged material.

Validation of the Tass System for Predicting the Environmental Effects of Trailing Suction Hopper Dredgers

Models created by researchers using innovative software have been tested and validated by monitoring trailers during dredging operations.

Dredging Rock with a Hopper Dredger: The Road to the Ripper Draghead

Research, investigations into pickpoints and cutting geometries, predictive models and trials were essential in constructing a ripper draghead that could be placed on a TSHD.

An Analytical Approach to the Sedimentation Process in Trailing Suction Hopper Dredgers

A number of theories are used (Camp, Groot, Miedema and Vlasblom, Yagi, Braaksma, Ooijens and van Rhee) to determine the overflow losses when loading trailing suction hopper dredgers. The model derived here has several important improvements, including the speed of doing the calculations.

New possibilities for Ripper Dredging of Rock

When the trials at the Port of Sudan to open a trench with explosives were unsuccessful, trenching equipment – a backhoe dredger with a rock bucket and a TSHD with a new generation of ripper-draghead – was brought in to accomplish the task.