Patent ID: 8033756
Filing Date: 2011-10-11
Classification: E02D

Abstract:
1. A system for driving an object into soil under water, comprising: a hammer element; a frame structure in which the hammer element is received; a piston cylinder received in the frame structure; a piston received in the piston cylinder; and a piston rod having an upper end attached to the piston and a lower end; a coupler attached to the hammer element, wherein the lower end of the piston rod is fastened to the coupler, and wherein the coupler is adapted to allow the piston rod to move up and down with respect to the hammer element within a limited range; a set of hydraulic elements received in or attached to the frame structure and in fluid communication with the piston cylinder; a surface structure on the surface of the water; a lifting line extending between the surface structure and the frame structure; a remotely operated vehicle (ROV) adapted to operatively connect to the set of hydraulic elements; and an umbilical cable extending between the surface structure and the ROV, the umbilical cable being adapted to provide electricity and/or control signals from the surface structure to the ROV for causing the hammer element to reciprocate and thereby deliver blows for driving the object into soil under water.