Abstract
Based on LabVIEW platform, a highway nondestructive detection system was developed to detect highway subgrade layer and strcture characteristic. The integral principle of this system is dispersion characteristics of Rayleigh wave in different medium and the pronounced relationship between propagation velocity of Rayleigh wave and physical-mechanical properties of the medium. Using this test system to conduct a field test on a highway in Henan province and comparing the results with the actual situation, the results validated the practicability and reliability of the system.
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