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为了鉴定萨尔特河整治工程方案的适用性,进行了两个模型试验。萨尔特河位于亚利桑那州菲尼克斯城国际机场附近。一个定床模型用来研究流速分布、水位、堤岸超高和防护措施,一个变态动床模型用来研究在推荐方案下的冲淤形态和堤岸的稳定性。对于堤岸的稳定性研究,采用了床面颗粒的起动和切力理论来模拟这个动床模型中各个存在着麻烦的部分。试验成果与数学模型成果相比较,显示了良好的一致性,提出了改进该整治工程方案的几点建议。
In order to identify the applicability of the Sarthed River Regulation Project, two model tests were conducted. Sarthe River is located near the Phoenix Arizona International Airport. A fixed-bed model is used to study the velocity distribution, water level, high embankment and protective measures. A metamorphic bed model is used to study the scouring and silting patterns and bank stability under the proposed scheme. For the bank stability study, the bed particle start-up and shear theory are used to simulate various troublesome parts of this dynamic bed model. Compared with the results of the mathematical model, the experimental results show a good consistency, and put forward some suggestions to improve the renovation project.