TOOL FOR THIN DIAPHRAGMS

摘要

A cutting/mixing tool for thin diaphragm walls mounted at the end of at least one drilling rod (47) moved by a slidable assembly (42, 62) along a tower (41), carried by an operating drilling machine (40); the tool (45) being characterized in that it is made up of a body (10), which bears in its central part two digging/mixing wheels (20a, 20b) provided on the periphery with cutting means (82) and set alongside one another at a minimum distance (d) and coaxial about an axis (x) substantially perpendicular to the direction of digging (z); the wheels (20a, 20b) projecting from slits (81) of the body (10), which contains at least partially means (1-4, 50-52) for transmission of motion to the wheels, said means being positioned externally with respect to the wheels.