Soletanche

Maurice Gau

Karl Bollinger

Herve Barthelemy

Yves Legendre

Michel Brochier

The invention concerns an arrangement for underwater drilling of foundations, comprising at least one cutter (27) and one pump (29) for discharge of excavated material, and hydraulic motors for driving the said cutter and the said pump. It comprises an hydraulic turbine (16) capable of functioning by means of a fluid such as sea water, and an hydraulaic plant driven by the said turbine and designed for feeding the said hydraulic motors.

Arrangement for underwater drilling of foundations

A device for submarine foundation drilling includes: a drilling unit including a head and body interconnected by at least one cylinder, the body being equipped with at least one cutter, the drilling unit being equipped with at least one excavating pump, and hydraulic motors to operate the cutter and the pump; a rigid tubular assembly (2) containing at least one discharge pipe, and pipes for feeding hydraulic fluid to the cylinder and the motors; connecting means (12) between the head of the drilling unit and the lower part of the tubular construction; support means (13) able to be placed at the ocean bottom in front of the head of the drilling unit, means for clamping the tubular assembly; means for suspending the device from a ship, means (5) being provided to furnish hydraulic power, and connecting pipes being provided between the means of furnishing fluid and the upper end of the tubular assembly.

Growing community of inventors

Maurepas, France

Maurice Gau