To provide a foundation pile evaluation method capable of grasping easily the property of the foundation pile.
A hole 12 along the axial direction is bored on the foundation pile 10. A transmission/reception part 1B of a borehole radar is inserted into the hole 12, and reflection data on the pile straight direction perimeter on the prescribed depth position are acquired. This operation is performed for each prescribed depth unit, to thereby acquire three-dimensional data of an evaluation object part of the foundation pile 10. The continuity of the reflection data is evaluated by a fence diagram display relative to the evaluation object part of the foundation pile 10 based on the acquired data, to thereby grasp the quality, and slice animation display is performed, for displaying a discoid section image sliced in the axis straight direction or in the approximately axis straight direction by shifting it continuously in the axial direction. Hereby, the pile property becomes easily understandable.
NAGATAKI YOSHIAKI
Yoshiaki Naito
Cui Shu Tetsu