| 摘要 |
PROBLEM TO BE SOLVED: To establish a method to inspect whether a bearing pile, etc., constructed underground is in the sound condition, from over the ground surface while the positioning remains in the initial. SOLUTION: At least two metal members 3 for inspection are installed in such a way as elevating to over the ground surface from the head of a pile concerned, and after curing of the pile, a sensor 5 of an inspection system 4 is installed on the top of one of the metal members 3 protruding over the ground surface, while the top of the other metal member 3 is excited, and the vibratory propagation in the pile 1 and the situation of reflected waves are recorded and displayed by the inspection system 4. The obtained vibratory propagation and the situation of reflected waves are observed, and inspection and/or check is made if there is any damage in the pile 1 and the position if any. |
