Abstract:

With the rapid development of the Yangtze River waterway construction, maintaining and managing the existing waterway regulation buildings has become an important task. Beach protection structures along the Yangtze River, despite their commonality, lack comprehensive research on their operational status in China. This study adopts an extension cloud theory that incorporates indicator fuzziness to establish an evaluation model for beach protection service status. Drawing from monitoring data, decades of maintenance experience and relevant specifications, we developed an evaluation index system. Utilizing a combined approach of order relationship and entropy weighting, we comprehensively determined index weights. Through model calculations, the service status level of beach protection can be accurately assessed. Application of the model to evaluate the service status of beach protection at Xinjiu Waterway in the midstream of the Yangtze River yielded consistent results with actual engineering conditions. Verification confirms the model’s accuracy in correctly identifying beach protection service status, guiding daily maintenance and promoting intelligent maintenance practices along the Yangtze River waterway.

Key words: beach protection, service status evaluation, extension cloud model, waterway maintenance, intelligent, midstream of the Yangtze River