| 摘要 |
PROBLEM TO BE SOLVED: To provide a diagonosis method for a linining cocrete and its diagnosis device, capable of simply and efficiently diagnosing deterioration conditions of the lining concrete of a tunnel. SOLUTION: The diagnosis device is constituted of a shock-wave generating means 5 for producing a shock wave S acting on the lining concrete 4 of the tunnel, a reflected wave measuring means 6 for measuring a reflected wave R of the shock wave S, a waveform recording means 7 for recording the reflected wave R to be measured and a wave form analysis/valuation means 8 for analyzing and valuating the wave form of the reflected wave R to be recorded.
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