Case Study: Marine Dredging - ABRA-LINE® Expansion Joints

Trailing Suction Hopper Dredgers (TSHD) are utilized to maintain navigable depths in harbors and other waterways and for delivery of sand for land reclamation/beach nourishment. Suction pipes fitted with trailing drag heads descend to the floor of the waterway for the collection of silt, sand and other loose materials. TSHD are fitted with dredge gate valves in their low hulls to handle the highvelocity abrasive sand slurries generated by these maintenance activities.