Overall , the average deposit slope , changes in cross sections , scouring hole , and sediment discharge of downstream channel of dam no . 4 increased with deeper opening depth of dam no . 3 由实验结果得知,随三号坝坝体在断面拆除深度加深时,四号坝下游的淤砂坡度、断面变化、冲刷坑与输砂量变化会随之增大。
Based on analysis of chaos characteristic of sediment discharge time series , bp neural networks model based on chaos phase space is proposed to forecast the sediment discharge through embedding dimension 在对输沙量时间序列混沌特性分析的基础上,利用嵌入相空间来确定前期影响因子,建立了基于混沌相空间技术的bp神经网络模型。
The problems from sediment discharge for de - siltation and the relative stability of fiver channel can be solved through the study on the main indexes such as flow rate , silt concentration and etc . based on the analysis of sediment - carrying capacity of flow and the law of river channel evolution 在分析水流挟沙力和河槽水力形态规律的基础上,研究调水调沙的流量、含沙量等主要水沙指标,可以解决河道输沙减淤和河槽相对稳定问题。
It has conducted physical model tests on five plans of different operational modes of sanmenxia reservoir and different combination of sediment discharge conditions and analyzes the influence of different sediment discharge conditions and different operational modes to scour and fill of reservoir area 摘要通过实体模型对三门峡水库不同运用水位和水沙条件组合的5组方案进行了试验,对比分析了不同水沙条件和不同运用水位对库区冲淤的影响。
A statistical model is developed and indicates high correlation between the accretion of modem yellow river delta and the water and sediment discharge of yellow river , and the model shows the necessary water and sediment discharge per year to ensure the equilibrium of alluvion and erosion of yellow river delta 黄河三角洲净造陆面积与黄河入海水沙量的统计模型说明,黄河三角洲冲淤动态平衡时的黄河入海径流量为71 . 93亿m ~ 3 a ,输沙量为1 . 853亿t a 。