Foundation pile positioning method - using hydraulic motor to drive jacks to position pile sections below existing wall, which sections welded after positioning

摘要

Sections of foundation pile are driven into position below weak existing wall sections which are supported by a steel plate. Hydraulic motor drives jack (5) to position successive hollow pile sections filled with concrete. Sections are welded together after positioning. The foundation pile (17) is positioned below existing wall (2) which is supported by steel plate (25). The foundation pile is of the helical screw type and consist of several pile segments. Hydraulic motor (12) is positioned in yoke (11) and secured by pins (19).