TEST METHOD AND TEST DEVICE FOR BEARING POWER OF PILE BURIED IN GROUND

摘要

PROBLEM TO BE SOLVED: To obtain reliable data tested in a short time. ;SOLUTION: The test device measures the bearing power of a pile 12 buried in the ground 10, in which a measuring instrument 16 that measures the loading load applied to a pile head 14 located at the upper end of the pile 12 and the displacement is placed. Then the basic structure is constructed so that the loading load and displacement of the pile head 14, which are caused by the dropping impact of a dead weight 18 when a prescribed mass of the dead weight 18 is dropped from the upper part of the pile head 14, are measured with the measuring instrument 16, and the bearing power of the pile 12 is determined based on the measurement value obtained thereby. A plastic cushion material 20 plasticity deformed by the dropping impact of the dead weight 18 is mounted on the pile head 14 when determining this bearing power. The plastic cushion material 20 is formed to a circular cone tapered off to the top end, and the area of the lower end side is made smaller than the area of the pile head 14, which is mounted on the pile head 14 so that the point end is located on the central axis of the pile head 14.;COPYRIGHT: (C)2003,JPO