UNDERWATER FOUNDATION RUBBLE-MOUND COMPACTION AND LEVELLING DEVICE

摘要

PURPOSE:To make it possible to execute the works effectively by supporting a percussion cylinder on a stable substrate movably in vertical and providing a hammer to percuss the upper end of the cylinder to the upper part of the percussion cylinder. CONSTITUTION:A percussion cylinder 4 is provided to a stable substrate 3 movably in vertical, and a hammer 5 is provided to the upper part of the percussion cylinder 4 to form an underwater foundation rubble-mound compaction and levelling device 1. Then, the levelling device 1 is located on the underwater rubble-mound 2 in such a state that was suspended by a wire rope 8 provided for a crane. And, the hammer 5 is operated to percuss the upper end of the percussion cylinder 4, and the percussion and compaction are given to the rubble-mound through a pressure board 4a.