Test equipment for rigidity of mast anchored into ground

摘要

The equipment (3) is set up alongside a metallic mast (2) whose foot (34) is flexibly coupled (18) just above ground level (1) to the hook (45) retracted by a horizontal pneumatic cylinder (42). The bending moment is measured by a pressure gauge (27) attached to a hydraulic pump (26). Movement at ground level is measured by a displacement sensor (35), and at a higher level above a weak point (9) by a tripod-mounted spotlight (31) beamed at a horizontal scale (30).