Experimental research on remote non-contact laser vibration measurement for tunnel lining cavities.

ABSTRACT: The lining cavities in tunnels have strong concealment and pose significant risks, seriously affecting tunnel operational safety. Therefore, it is necessary to develop efficient and high-precision detection techniques for tunnel lining cavities. In this study, concrete slabs with different parameter cavities were selected as the research object, and experiments on remote detection using Laser Doppler Vibrometry were conducted. During the experiments, the vibration parameters of the concrete surface were measured for cavities of varying sizes and depths, filled with different materials, and under different detection distance conditions. The vibration differences between the defective and healthy parts were analyzed using the spatial spectral entropy algorithm. The results showed that for ca

SUBMITTER: Yang H 

PROVIDER: S-EPMC11697304 | biostudies-literature | 2025 Jan

REPOSITORIES: biostudies-literature