flood channel 中文意思是什麼

flood channel 解釋
洪水河槽
  • flood : n 1 洪水，水災。2 溢流，漲水，潮水最高點，泛濫，洶涌。3 〈詩〉河，湖，海。4 充溢，豐富；大量，一...
  • channel : n 1 水路，水道，渠，溝；海峽；河床，河底。2 （柱等的）槽，凹縫；【機械工程】槽鐵，凹形鐵。3 〈比...
  1. The main sedimentary microfacies are submerged distributary channel, debouch bar, submerged natural levee and flood - plain splay. the research shows that the physical property of subermerged distributary channel sandbodies are the best and debouch bar comes second

    長4 + 52長62油層砂體的沉積微相類型主要有水下分流河道、河口壩、水下天然堤和水下決口扇等，其中水下分流河道砂體的物性相對最好，其次為河口壩砂體。
  2. The basic pattern during flood tides is for oceanic water to flow north into mirs bay and west through lei yue mun into victoria harbour and through kap shui mun and the ma wan channel. this flow is reversed during the ebb tide

    潮漲時的基本模式是海水向北流入大鵬灣，西經鯉魚門流入維多利亞港，北通汲水門及馬灣海峽；潮退時水流方向則相反。
  3. There are a lot of factors that work on the water level of erodible - bed channel together, each of them varies no role, but is correlative. in the adjacent years or the adjacent flood peak of a floodwater, the conditions of the factors that influence water level are always very different. so, there is a nonlinear relation between water level and the factors influencing it

    沖淤河道水位受到很多因素的共同作用，各因素本身的變化沒有規律且互相關聯，相鄰前後年份或同一場洪水的不同洪峰前後，影響水位的水、沙、河道等因素常差別很大，水位與其影響因素之間客觀上是非線性關系。
  4. At first, this paper analyzes the factors of water - sand influencing water level of yellow river and the feasibility just using the factors of water - sand to study water level, and collects the corresponding data ; secondly, because there are strong nonlinear relation in the corresponding data, by meticulous theory analysis, this paper integrates basic nonlinear analysis method, theory of random analysis, method of least squares and so on. it puts forward a method which can get the high accuracy simulation of the data, perfects the multi - factor analysis of variable ( over three factors ) of the statistic ; thirdly, it applies the method to the approximation of corresponding water level process which belong to the capacity of sand of middle - high and middle - low, and get the high - accuracy simulation about the typical nonlinear relation ; at last, this paper definitudes the main influence mode that the capacity of sand. it mainly unite with other factors to work on the water level in the yellow river lower reaches ; mor eover, this paper analyzes the difficult point and the direction of improvement to realize the accuracy forecasting of the flood level of erodible - bed channel

    首先，系統分析了影響黃河水位的水沙因素，及僅用水沙因素有效研究水位的可行性，並按變量對應思想採集它們的相應數據；其次，由於相應水位過程數據中含極強的非線性關系，本論文經細致的理論分析，將基本的非線性分析方法、統計建模方法、隨機分析理論、最小均方誤差原則等等數學理論及方法有機揉合，提出了能有效實現這類數據高精度擬合的分層篩選法，並改進了統計學中多因子（三個以上）方差分析法；再次，將這一方法用於黃河中高及中低含沙類洪水相應水位過程的擬合，實現了這一典型非線性關系的高精度擬合，各年汛期上下游相應洪水位過程的擬合誤差都較小；最後，明確黃河下游含沙量對水位的主要影響方式，即含沙量主要是與其它因素聯合對水位作用；另外分析了要實現變動河床洪水位過程準確預報的困難所在及改進方向。
  5. Flood level forecast model for tidal channel based on the radial basis function - artificial neural network

    用徑向基函數神經網路模型預報感潮河段洪水位
  6. Based on the data collecting from previous study results and measuring actually in the spring and neap tide during the flood season in 2001 and dry season in 2003, this paper proposes that the concept of the flood channel should include a more comprehensive implication

    本文的研究工作主要包括： 1收集整理海圖資料以及以前的有關實測數據； 2參加2001洪季和2003年枯季野外定點、走航觀測和取樣工作； 3
  7. Study of a flood channel or flood - dominated channel of estuary is not only an important content in estuarine dynamic geomorphology and dynamic sediment, but also is a practical problem nearly related to the selection of harbor sites, regulation of sea - entering waterway, bank revetment and land reclamation, and even the comprehensive exploitation of estuaries

    河口漲潮槽的研究不僅是河口動力地貌學和河口動力沉積學研究的重要內容和前沿課題，而且對港口選址、通海航道治理、護岸圍墾以及河口綜合開發利用都具有重要的研究和應用價值。
  8. When catchment area, average channel gradient and catchment shape factor of designed culvert or bridge are known, a user can be convenient to get local parameters c, e and b from standard contour charts and easy to calculate flood flow just by a calculator. design period of flood flow is enormously shortened as well as a high precision. estimated flood flow through culvert or small bridge by new calculation model is generally less than by traditional methods, so that much cost is cut down a s reducing the span of culvert or small bridge

    以75000km ~ 2的川中丘陵地區為試點研究區，繪制了該地區新模型的參數等值線圖，率定了不同設計頻率的改正系數，使設計者只需在地形圖上獲取集水面積，河道平均坡降和流域形狀系數，在參數等值線圖上查得橋涵所在地的相應參數，使用計算器即可迅速計算出設計流量，大大縮短了設計周期，且精度較高，設計的洪水流量一般低於傳統方法，從而可減小橋涵跨徑，節省投資。
  9. Furthermore, sorting of the sandstones in the braided river is better compared with that of in the meandering river system. in the same subfacies, grain size is larger and sorting is better in the channel sandstones which developed with large - scale cross - beddings such as trough cross - bedding, compared with sandstones in the flood microfacies. in the same microfacies, better sorting and coarser grained sandstones are distributed in the middle and lower part of the unit

    與曲流河亞相相比，辮狀河亞相砂巖的粒度較粗，分選性較好，砂體多次疊置而規模更大；相同河流亞相的河道微相與泛濫平原微相相比，前者的砂巖粒度較粗、分選性較好，發育槽狀交錯層理等大型層理構造；在同一微相內，處于中下部的流體單元其粒度較粗，分選較好。
  10. The evaluation results of dike breach risk show the following distributing regularities of the hang river dike breach risk in the lower yellow river : ( 1 ) the dike breach risk increase with the increasing of flood. ( 2 ) dike breach risk decreases with the river types change along channel. ( 3 ) the reaches of greater dike breach risk mainly distribute in wandering reaches

    評價結果表明黃河下游懸河決溢風險具有以下分佈規律: （ 1 ）決溢風險隨著洪水量的增大而增高; （ 2 ）決溢風險隨河型的沿程變化而降低; （ 3 ）決溢風險較大的河段集中在游蕩型河段; （ 4 ）游蕩型河段南岸的決溢風險相對較高; （ 5 ）彎曲型河段北岸決溢風險高於南岸。
  11. In addition according to the comparison of typical floods the impact of floodplain morphology to the flood propagation was studied. no continuous water body in main channel and floodplain and the change of floodplain morphology and the increased flood detention capacity caused the time of flood propagation increasing and the flood types changing in abnormally

    同時通過對典型洪水的對比分析，研究了灘地邊界條件對洪水運行的影響，認識到由於主槽與灘地水體不連續以及灘地地形的改變，灘地蓄洪能力增大，造成洪水傳播時間增長和洪峰峰型的異常變化。
  12. 3. a three - dimensional - acoustic doppler velocimeter has been used to measure the velocity and turbulence in a compound channel with vegetated and unvegetated flood - plains. particulary in the interface region between main channel and floodplain. the distribution in three coordinate directions of velocity and turbulence intensities and the renolds stresses are presented. the momentum transfer at the main channel flood - plain interface can be described as an apparent shear stress which can be quantified as a function of the local turbulence at the interface

    採用adv對灘地種樹前後灘槽交界區域的流速場進行了量測。分析了灘槽交界區域的垂線流速、紊動強度和雷諾應力的變化。將灘槽交界的動量傳遞描述為一表觀應力，這個表觀應力可以看作是交界面處的脈動函數並將其定量化。
  13. In this paper, some characteristics of flow movement and sediment transport are analyzed by using the flume experiment data. the cross section of compound channel can be divided into four regions : the undisturbed region in main channel, the interactive region between channel and plain, the undisturbed region in flood plain and the boundary region. in the undisturbed regions, the distribution of longitudinal velocity along the depth has the feature of lograithmic. whereas, in the interactive region, the longitudinal velocity does not obey the logarithmic distribution law, but it can expressed as a revised logarithmic function by using a wake function. on the basis of the kinematic equation the velocity distribution of transverse velocity is obtained. in the boundary region, the longitudinal velocity obeys the law of parabolic distribution. furthermore, according to the simplified diffusion equation, the transverse distribution of sediment concentration in the interactive region is deduced. the analysis is in good agreement with the measured data

    本文根據漫灘水流的運動特點，將漫灘水流的復式斷面分為主槽平衡區、灘槽交互區、灘地平衡區及邊壁區等4個區，並給出了各區寬度的經驗公式.根據灘槽交互區垂線流速分佈的變化特點，提出了附加尾流函數的對數流速分佈公式.在簡化水流運動方程和泥沙擴散方程的基礎上，對灘槽交互區內垂線平均流速及含沙量沿橫向分佈進行了理論分析，提出了反映灘槽水流動量交換強度的橫向渦量粘性系數及橫向擴散系數的表達式，得到了漫灘水流垂線平均流速及含沙量沿橫向分佈的解析解，並與實測資料吻合較好
  14. For the low water head water control project at a branching channel, its flood discharge capacity is related not only with the total discharge width but also with the discharge width ratio of the two branches

    摘要位於分汊河段的低水頭樞紐，其泄洪能力不僅與樞紐的總泄流寬度有關，而且與兩汊泄流寬度之比有關。
  15. Based on the analysis of satellite images of various periods, landform data and river channel transverse section evolution in the lower yellow river, the characteristics of the river channel boundary condition changes at different location are clarified as middle flood channel flood transport width and area are evidently decreased especially for the main channel with comparison to 1950s, beach area that is unimpeded before become blocked because of road, irrigation channel constructed on it, and consequently intensify high edge of beach and lowering dyke and river

    在現場查勘的基礎上，通過對丹江口水庫和小浪底水庫攔沙初期下遊河道演變、排洪能力變化特點的對比，分析了黃河下游防洪面臨的新形勢:小浪底水庫攔沙初期，下遊河道發生沖刷，但艾山以下窄河段沖淤變化不大，近年來形成的淤積萎縮的狀況難以很快改觀，游蕩性河段調整劇烈，工程出險機遇增大，河道水位流量關系中水流量以下部分同流量水位明顯降低，中水流量以上部分水位降低幅度可能會明顯偏小，防洪形勢仍不容樂觀。
  16. All negative landforms, which are shaped by flood - dominated current, such as souring hole, scouring channel and flood channel, are belong to the study area of flood channels

    通過以上的研究認為河口漲潮槽的概念應該有更為廣泛的含義，包括河口一切由漲潮流作用為主形成的負地形，如漲潮沖刷坑，漲潮沖刷槽和漲潮水道等，漲潮槽的特徵應該保持多年。
  17. The character of flood channel can be determined by dominate current, dominate tidal volume, dominate sediment concentration, channel geometry configuration and direction of bed sediment transport and so on

    用優勢流、優勢沙、優勢潮量、漲潮槽形態和凈底沙運移方向的方法都可以表達漲潮槽的性質。
  18. Influenced by flood dominated current in the flood channels, the characteristics of surface sediments, such as grain size, light and heavy minerals, micro - paleontology and magnetism in the flood channel are very different from those in the ebb channels, this kind differences is the response for complex hydrodynamic in estuary

    河口漲潮槽在漲潮優勢流作用下，槽內表層沉積物的粒度、輕重礦物、微體古生物和磁學等特徵不同於落潮槽相應的沉積特徵，體現了沉積物的分佈對河口復雜水動力的響應。
  19. Make a comprehensive view of all study results about the flood channel, a model of formation and evolution of the flood channels was proposed. according to this model, not all flood channels formed by ebb channels divided by sand spit develop toward death, some of them may be keeping the current situation or transform to the reserve channel with the change of runoff and sediment concentration from upper reach

    用gis方法計算1861 - 2002年新橋水道區域的沖淤變化，可定量表達漲潮槽在不同時間尺度形成演化規律，結合漲潮槽巖芯沉積物垂向的沉積特性變化，可闡明漲潮槽的形成機理與演化過程，並提出不同種類型漲潮槽的形成演化模式。
  20. Changes of sediments characteristics of core a and c reflect the sediment environment varied during channel formation and development of flood channel

    河口漲潮槽淺層沉積物粒度、輕重礦物、微體古生物和磁學性質的變化可說明漲潮槽在形成演化過程中沉積環境的變化。
分享友人
分享到 Line

分享到臉書