黄土高原沟道坝系模型设计实例与验证

首先根据天然小流域特点概化出原型条件，然后按照黄土高原沟道坝系模型设计方法，设计和制作出几何比尺分别为240及960的两座模型，并通过原型资料及预备试验修正了产沙量比尺。最后，利用较大模型的试验结果对较小模型进行验证，表明提出的黄土高原沟道坝系模型设计思路及以原型和模型的产沙量之比作为产沙量比尺的方法是合理的。

Examples and Verification on Model Design of Dam System in Gullies of the Loess Plateau

First of all,it generalizes the prototype condition based on the characteristics of natural small watersheds and then designs and establishes two models with geometric scale of 240 and 960 respectively according to the design method of dam system model of the Loess Plateau.It revises the scale of sediment production through prototype data and preparative test.Finally,it verifies the testing results of the smaller model by using the testing results of the bigger model and shows that the design consideration for the dam system model of the Loess Plateau and the method of using the ratio of sediment yield of prototype and model as sediment yield scale are reasonable.