Underwater structure safety assessment of estuary sluice based on 3D sonar point cloud

doi:10.13474/j.cnki.11-2246.2022.0018

Abstract

Abstract: The estuarine sluice underwater structure safety has a great significance on the safeties of the sluice engineering, the river course and surrounding residents. In the low-visibility water environment, the traditional safety detection method of underwater structures based on artificial diving is very inefficient. In order to improve the efficiency, 3D scanning sonars have been widely applied on the safety evaluation of important underwater structures. In this paper, the BlueView BV5000 3D scanning sonar is used for the underwater structure safety evaluation of the estuary sluice on Suzhou River. Based on the measured data, the underwater structure safety is evaluated by using the processed 3D sonar point cloud after data filtering and splicing. The sonar evaluation results verified with manual inspection prove the advantages of 3D scanning sonar in underwater structure safety assessment, and further provide the data basis for subsequent maintenance.

Key words: 3D sonar, point cloud, underwater structure, safety assessment, estuary sluice

CLC Number:

FENG Lu, LI Yan, XI Siyuan, ZHENG Xiaodong. Underwater structure safety assessment of estuary sluice based on 3D sonar point cloud[J]. Bulletin of Surveying and Mapping, 2022, 0(1): 100-104.

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