模拟水库消落带水土流失的实验研究

由于大型水利工程的兴建,导致区域内形成水库型消落带,对生态环境产生了巨大影响,因此消落带的研究受到广泛重视。本项目主要研究坡面泥沙流失起动条件及程度与边界坡度与波浪的关系,通过室外考察与室内模拟研究的方法,以浪高为自变量,坡度为因变量,制作波浪冲刷土坡试验模型,分析变量之间关系,得出消落带坡度变化速度随时间由快到慢,并趋于某一稳定值：坡度稳定值在17°-28°范围内并随着浪高的增加而增加的结论,为今后的消落带研究提供具体的数据和变化规律的参考。

Experimental Study on Soil and Water Loss in Reservoir Elimination Zone

Because of the construction of large-scale water conservancy projects, the reservoir elimination zone is formed, which has a great impact on the ecological environment, so the study of the falling zone has been widely paid attention to. This project mainly studies the relationship between the starting condition and degree of sediment loss on slope and the boundary slope and wave. And through outdoor investigation and indoor simulation research, we treat wave height as an independent variable and slope as an dependent variable. Next, the experimental model of wave scour soil slope is made, and the relationship between variables is analyzed. It is concluded that the slope variation speed of the falling zone changes from fast to slow with time and tends to a certain stable value: the slope stability value is in the range of 17-28 and increases with the increase of wave height. It provides specific data and reference for future study of falling zone.