Submerged plate load test (patented)

For the TTP1 project, the foundation of the caisson quay walls consists of a compacted rockmound. To establish the bearing capacity and stiffness of this rockmound, a new submerged plate load test was invented, that serves as an extension of the submerged CPT unit, Manta-200.

Patent information can be found here.

Abstract

Described are a device and method for determining the mechanical properties of an underwater bottom. The device comprises a support frame which provides a fixed support relative to an underwater bottom; and also means for carrying the support frame onto the underwater bottom. Accommodated in the support frame are a pressure plate and pressing means for pressing the pressure plate against the underwater bottom with a force; means for measuring the displacement of the pressure plate during pressing; and computing means allow mechanical properties of the underwater bottom to be determined from the measured displacement and the force.