| 摘要 |
PROBLEM TO BE SOLVED: To provide a degree of adhesion diagnosis method for a concrete-sprayed slope using a transverse wave resonance method, which enables high-accuracy measurement of the degree of adhesion between the back of a concrete-sprayed slope and the surface of natural ground such as rock and ground with a received signal by the transverse wave resonance method, clear and easy discrimination of the degree of adhesion and reduction in size of a wave transmitter and a wave receiver to be portable. SOLUTION: This degree of adhesion diagnosis method uses a non-destructive inspection device composed of a combination transmitter/receiver composed of a transmitting part for generating an electric signal with several hundreds to several kHz and a receiving part for amplifying an electric signal whose vibration is converted, a wave transmitter for generating transverse wave vibration from a signal transmitted from the transmitting part of the combination transmitter and receiver and transmitting the same directly to the concrete-sprayed slope, a wave receiver for receiving the vibration generated in the concrete-sprayed slope by the vibration transmitted from the receiving part of the combination transmitter and receiver, thereby detecting the occurrence of resonance phenomenon in the concrete-sprayed surface, and the degree of adhesion of the concrete-sprayed surface and the natural ground from the frequency and amplitude thereof. COPYRIGHT: (C)2004,JPO
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