河床模型 的英文怎麼說

中文拼音 [héchuángmóxíng]
河床模型 英文
river basin model
  • 河 : 1 （天然的和人工的大水道） river 2 （指銀河系） the milky way system; the galaxy 3 （特指黃河） t...
  • 床 : i 名1 （供人睡覺的傢具） bed; couch 2 （像床的器具、地面） something shaped like a bed Ⅱ量詞（用...
  • 模 : 模名詞1. （模子） mould; pattern; matrix 2. （姓氏） a surname
  • 河床 : riverbed; bed; poised river; [英方] waterstead; cauce
  • 模型 : 1 （仿製實物） model; pattern 2 （制砂型的工具） mould; pattern3 （模子） model set; mould patter...
  1. 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。
  2. Building up the math - model of transient for the all hinge of riverbed power station with the kaplan turbine, building a simulation software for this kind of system and calculate the transient which take into account the effect of the ground swell on the riverbed. this program also can calculate the different kind of the kaplan turbine

    針對轉槳機組河床逕流式電站的樞紐系統，建立了全樞紐過渡過程的計算模型，並且編制了相應的計算程序，進行了計及河床涌浪的全樞紐系統的過渡過程模擬計算，該程序能對同一樞紐中含有不同型號機組的電站同時進行過渡過程計算。
  3. The improved scheme can ensure the south branch to be open to navigation and the flow here not to be broken in low water seasons, and it will have active effect on protecting the south branch and fuyuan town. this study is an attempt of applying three - dimensional mathematical model in analogue calculation and analysis of flow, sediment and riverbed movements in a long river reach. it is very important for the future thorough research, and has great significance for promoting the application of the three - dimensional model to resolve

    本研究是三維數學模型對較長河段水流、泥沙、河床運動模擬計算分析的一次嘗試，其對今後進一步深入研究和應用三維模型解決工程實際問題，完善模擬方法、提高模擬水平，真正發揮數學模型其省時、省力、靈活方便和模擬細膩等在研究水沙運動規律和河床變形等方面研究中優勢具有重要的意義。
  4. Through checking computations, it was shown that the analogue accuracy of the model was quite high, which can provide important basis for scientific decision - making on engineering measures. through analogue calculation and analysis of many regulation schemes, it was shown that combining the diversion weir works with the bed fixing works at the south branch is reasonable and feasible in the implementation of loushuikouzi river regulation works. in addition, it is suggested that the bed fixing works at the south branch should adopt the improved compound section scheme

    經對多個整治方案的模擬計算與分析，表明漏水口子河道整治採用分流魚嘴工程和南汊固床工程相結合的整治工程措施是合理可行的，通過模型計算研究還提出了南汊固床工程採用復式斷面形式的改進方案建議，該方案保證了南汊枯期通航和不斷流，而且對南汊及撫遠鎮的保護具有正面作用。
  5. To choice good excavating scheme, this article engages in hydraulic model tests and numerical simulation on the movable bed

    為了選擇較好的清挖方案，本文對太平灣電廠下遊河道進行了動床水力模型試驗及動床水流數值模擬研究。
  6. The mathematical model was applied to serve the engineering projects. the different water levels and flow discharges in nanjing river reach are calculated, bed scour and sedimentation in this engineering reach during one hydrologic year are verified. all results are in good agreement with field measurements

    西氣東輸過江工程，採用該模型模擬南京西壩泗源溝河段不同流量水流運動，並計算一水文年過程該河段的河床沖淤變化，結果和實測資料也基本一致。
  7. In addition, the application of the present model to the " design of new sediment sluice at the taohe mouth in the liujiaxia reservoir " supports the experimental results conducted by the department of sediment research, iwhr

    在運用此模型對尚在立項中的「劉家峽水庫增建洮河口排沙洞方案」進行計算時，計算結果支持了中國水利水電科學研究院泥沙研究所的動床物理模型試驗結果。
  8. Based on the riverbed evolution analyses of the downstream reach of oujiang estuary and physical model test of eight types of regulation projects, an estimation method for nondeposit velocity satisfying channel depth is presented under fixed bed model test condition

    摘要通過對甌江口外段河床演變分析，以及8種航道治理工程的物理模型試驗，提出了在定床試驗條件下滿足航道水深所需的不淤流速的估算方法。
  9. Visual modflow computer code was selected to simulate heads distribution, calculate the zone budgets of the area, evaluate the effect of external stresses on the groundwater head, to determine how much water would be diverted from the river as the result of pumping and to demonstrate how the groundwater model can be used as a comparative technique to formulate a new approach for the quantitative groundwater vulnerability assessment in order to optimize utilization of the resource

    在分析河床沉積物滲透性對模型結果的影響時，採用了實際野外水文地質條件而不像前人所採用的假想模型。本論文用visualmodflow建立數值模型模擬預測了地下水水頭分佈，計算區域的水均衡，分析源匯項對地下水水位的影響。在此基礎上進行了全區的地下水脆弱性評價，為地下水資源的合理開發利用提供依據。
  10. Because it is relatively reliable in both theoretical and practical research, the rigid bed model, which is without deformation under the action of river flows, is widely used in the river hydraulic simulations. the advantages of visibility and high accuracy of the rigid bed models are evident for the complicated boundary conditions of rivers

    在河道水力模型中，尤以河床在水流作用下不發生變形的定床模型應用最為廣泛，在理論上和實踐上都已比較成熟，當河段的邊界過于復雜時，其直觀、準確的優越性更為明顯。
  11. In the suspended sediment transport model, the method of shear stress is adopted to determine the source function in the suspended sediment diffusion equation. through a series numerical experiments and statistical analyses of observed field data, a local coefficient, which can reflect the bottom material and consolidation, is introduced into the classic critical erosion velocity of the sediment

    懸沙輸運模型利用切應力方法來確定對流擴散方程中的泥沙源函數，其中的臨界起動速度利用經典的泥沙起動流速公式前面增加一個局地系數得到，這個系數能反映河床底質結構及固結程度，通過系列數值試驗和實測資料的統計分析確定。
  12. Based on the analyses of the flow and sediment characteristics and evolution trend of the river bed of the fuling reach in the yangtze river before and after the impoundment of the three gorges reservoir, the water level, velocity variation and influenced range in the fuling reach before and fifty years after the operation of the three gorges reservoir with the construction of the fuling dock and four discharge combinations are calculated by using a two - dimensional flow mathematic model

    摘要在分析長江涪陵段的水沙特性和三峽水庫蓄水前後該河段河床演變趨勢的基礎上，運用二維水流數學模型，分析了4種流量組合情況下在三峽水庫運用前和運用50年，涪陵港區碼頭修建前後的水位、流速變化及其影響范圍。
  13. The resistance coefficient of the river, the scale affect of the rigid bed model, and the rule of channel dredging are also discussed in order to obtain the reliable conclusion

    對河床的阻力系數、定床模型試驗的比尺效應以及電廠下。游清挖原則進一步研究，以期給出較明確的結論。
  14. In this project, the maximum height of the dam is 81m, but the deep overburden in the riverbed has the depth of 147. 95m which is about two times of the maximum height of the dam body, so the seepage and liquefaction prevention of the dam foundation becomes the key and important problem in the design of the dam project. the static stress and deformation under three different projects - horizontal blanket project, clay core project and asphalt core project - for the dam is analyzed comprehensively. the damage that may be induced by variable factors on the dam body in time of engineering completion and water impounding operation period is seriously studied

    其次，將這一模型用於分析下坂地水利樞紐工程，由於該工程河床覆蓋層深度最深達147 . 95m ，是壩體高度的近兩倍左右，壩基的滲流和液化成為壩體安全主要問題，本文對該壩的三種設計方案即水平鋪層防滲方案、粘土心墻防滲方案及瀝青心墻防滲方案的靜態應力位移及壩體在竣工期、蓄水期等各個階段可能產生的破壞進行了認真研究。
  15. Based on the hydrodynamic theory, the riverbed deformation process of all reservoir area during long duration is investigated by using of computer numerical simulation. in the meantime, based on one dimensional sediment model, the simulation of the longitudinal scouring and sedimentation and lateral deformation in reservoir tidal flat and mainstream are researched. the quasi - two dimensional sediment numerical model forecasting longitudinal scouring and sedimentation and lateral deformation in reservoir and river are established

    應用水動力學理論，以計算機數值模擬為手段，主要考慮長歷時全庫段的河床變形過程，在一維泥沙數學模型基礎上，同時考慮水庫灘槽縱向沖淤和橫向變形的模擬，著重建立可以預測水庫及河道縱向沖淤及橫向變形的準二維泥沙數學模型。
  16. In mobile bed experiments, the measurement of sediment concentration needs to be real - time and accurate

    摘要動床河工模型試驗中，需要對泥沙濃度進行實時和精確的測量。
  17. According to the similar rule, a movable bed model for downstream channel and the particle size distribution of the model silt in the channel and the scour hole are designed. a theoretical method of size distribution in the scour hole is devised

    根據模型律設計了太平灣尾水渠動床模型，分別確定了河床中和沖刷坑中模型沙的配比，並對沖坑中的床質級配進行了理論推導。
  18. The photoelectric sensor technology for measurement of sediment concentration in mobile bed experiments

    動床河工模型試驗中泥沙濃度光電量測技術
  19. The extreme effects of sand mining on local deformation of riverbed and evolution of river stretch in typical river sections such as straight river section, river bend and river fork are experimentally studied in micro - scale loose bed hydraulic model

    摘要採用微尺度動床河工模型試驗的方法研究了在順直、彎道與分汊等典型河道不同部位進行大規模采砂對河床局部變形及對河段變形的極限影響。
  20. Water quality - evaluation of the aerobic biodegradability of organic compounds at low concentrations - continuous flow river model with attached biomass

    水質.評價低濃度有機化合物有氧生物降解能力.附有生物量的連續流動河床模型
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