APPLICATION RESEARCH OF MULTI BEAM 3D SONAR IN BRIDGE FOUNDATION EROSION DETECTION
The research mainly introduces the principle and method of underwater detection of multi beam 3D sonar system,and combines engineering examples to detect the scouring condition of a certain bridge founda-tion.By comparing with the results of frogman probing,the accuracy of SONIC 2020 multi beam 3D sonar probe in shallow water detection was verified.The results showed that the system can accurately detect the terrain and topography of bridge riverbed,underwater foundation appearance,and underwater foundation erosion.Compared with traditional underwater detection technologies,multi beam 3D sonar detection technology has advantages such as high detection accuracy,short cycle,and process safety.The research results are expected to provide reference for similar shallow water foundation erosion detection projects.
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