某水闸重建工程设计要点与工程实践OA

With the increasing frequency of extreme climate events in coastal areas,the vulnerability of aging sluice facilities in flood control,drainage,and tide protection has become more pronounced,posing serious threats to regional safety and sustainable socio economic development.This study focuses on the reinforcement and reconstruction of a sluice in Guangdong Province that was classified as Class Ⅳ due to prolonged disrepair.A systematic investigation was carried out encompassing structural optimization design,hydrau lic computation,and construction arrangement.The results indicate that the sluice adopts an open-type broad-crested weir with a flat-bottom configuration,and the safety factors against sliding,uplift,and overturning all satisfy the code requirements.Through numeri-cal simulation and field measurement data validation,the total drainage discharge after reconstruction meets the flood conveyance and drainage requirements under both the 50-year return period maximum tidal level and the historical highest tidal level.The adoption of staged diversion,reverse construction method for the sluice floor,and modular prefabrication and installation techniques effectively ensures flood passage during construction as well as project quality and safety.The findings provide an important refer ence and engineering demonstration for the standardized renovation,construction technique optimization,and resilience enhancement against extreme climates of aging sluice facilities in coastal regions.