The design of pipes depends on comparative power requirements to deliver a given sediment discharge . 在設(shè)計(jì)管道時(shí),必須比較其對(duì)于輸送一定量的泥沙所需要的功率。
Fractal characteristics of discharge and sediment discharge in the pearl river delta 西北江三角洲來(lái)水來(lái)沙的非線性分形特征
Linkage of grain size information with river sediment discharge and estuarine deposition at the pearl river estuary 河口沉積與粒度信息之間的聯(lián)系
Suspended sediment has three transport modes , and the relationship between tidal discharge and sediment discharge is also studied 懸沙運(yùn)動(dòng)模式與水流基本一致,也存在三種不同形式的懸沙環(huán)流輸移模式,并分析了潮流量與輸沙率之間的關(guān)系。
There are lots of factors which influence the evolvement law of sediment discharge , and it is very difficult to be known and gained , it results in low precision of simulation and forecast 摘要影響輸沙量演變規(guī)律的前期因素比較多,且難于確定和提取,這就造成對(duì)輸沙量的擬合和預(yù)測(cè)精度較低。
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 由實(shí)驗(yàn)結(jié)果得知,隨三號(hào)壩壩體在斷面拆除深度加深時(shí),四號(hào)壩下游的淤砂坡度、斷面變化、沖刷坑與輸砂量變化會(huì)隨之增大。
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 在對(duì)輸沙量時(shí)間序列混沌特性分析的基礎(chǔ)上,利用嵌入相空間來(lái)確定前期影響因子,建立了基于混沌相空間技術(shù)的bp神經(jīng)網(wǎng)絡(luò)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 在分析水流挾沙力和河槽水力形態(tài)規(guī)律的基礎(chǔ)上,研究調(diào)水調(diào)沙的流量、含沙量等主要水沙指標(biāo),可以解決河道輸沙減淤和河槽相對(duì)穩(wěn)定問(wèn)題。
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 摘要通過(guò)實(shí)體模型對(duì)三門峽水庫(kù)不同運(yùn)用水位和水沙條件組合的5組方案進(jìn)行了試驗(yàn),對(duì)比分析了不同水沙條件和不同運(yùn)用水位對(duì)庫(kù)區(qū)沖淤的影響。
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 黃河三角洲凈造陸面積與黃河入海水沙量的統(tǒng)計(jì)模型說(shuō)明,黃河三角洲沖淤動(dòng)態(tài)平衡時(shí)的黃河入海徑流量為71 . 93億m ~ 3 a ,輸沙量為1 . 853億t a 。