盐环定扬黄工程水工建筑物侵蚀破坏因素分析及应对措施

The cause and solution of erosion damage of hydraulic constructions in Yanhuanding Yellow River water pumping project

本文以盐环定扬黄工程中遭侵蚀破坏的泵站、输水干渠、输水渡槽及井柱基桩等水工建筑物为研究对象,从冻融循环、混凝土结构破坏及水中硫酸根离子和氯离子化学侵蚀等角度,分析了干湿交替条件下水工建筑物侵蚀破坏因素,并结合实践经验,根据侵蚀破坏程度提出防治措施,为更有效的防治水工建筑物侵蚀破坏提供借鉴。

In this paper, the damaged hydraulic structures such as pumping stations, water conveyance canals, aqueducts well poles and foundation piles in Yanhuanding Yellow River water pumping project were investigated. The cause and mechanism of erosion damage of hydraulic constructions under the alternation of wetting and drying were analyzed from the aspects such as freezing and thawing cycles, structural damage of concrete, sulfate ion chemical erosion, chloride ion chemical erosion and so on. Combining with the practical experience, the prevention and control measures were proposed. The research in this paper provided reference for the effective prevention and control of the erosion damage of hydraulic constructions.