河道河槽 的英文怎麼說

中文拼音 [hédàohécáo]
河道河槽 英文
stream cha el
  • 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...
  • 道 : Ⅰ名詞（道路） road; way; route; path 2 （水流通過的途徑） channel; course 3 （方向; 方法; 道理） ...
  • 槽 : 名詞1 （盛牲口飼料或飲料等液體的器具） trough; manger （for water animal feed wine vat） 2 （兩邊...
  • 河道 : river course; streamway; covalency; runway; cut; river channel河道變遷 channel change; migration ...
  1. Through the study above, a refined description and modeling to flow field and water surface near the groyne in river is conducted with 2 - d and 3 - d mathematical models. the results by simulation are consistent well with experiment data

    通過上述研究，作者採用二維和三維數學模型對水槽試驗和天然河道中丁壩附近流場和水面形態進行了精細地描述和模擬，計算結果和實測結果吻合良好。
  2. First, according to measured data and literature, the river channel evolution rule and its reasons in the southern branch of the yangtze river are discussed from the perspectives of historic evolution, recent evolution and the tendency prediction of river channel evolution. besides, the local reservoir has been studied from the changes in thalweg and section as well as the calculation of local erosion and deposit. consequently, the stability and feasibility of reservoir construction in the river section are approved

    首先根據大量實測資料及文獻資料，就歷史變遷、近期演變、河演趨勢預測等方面，初步探討了長江口南支河段河道演變規律及原因，並具體就深泓線的變化、主槽斷面變化、局部沖淤計算等方面對擬建水庫局部區域進行了分析，論證了工程河段建設水庫的穩定性及可行性。
  3. Then river width increased and the intensity of deep point lowing and bed material coarsening decreased and water level lowed continuously. so the bed form changed toward to u type. the bed regulation is realized through sediment silting in different parts in cross section during silting period and the deformation of bed form changed from broad u type channel to narrow and deep v type channel

    研究表明，河道在持續沖刷前期深泓點及水位下降與河床粗化同步發展，河床向v型發展；沖刷後期深泓點下降、河床粗化減弱，河道展寬增大，水位繼續下降，河床向u型發展；在以淤積為主時期的調整，是通過斷面不同部位的淤積來實現的，但都是由u型較大河槽向v型窄深小槽發展。
  4. 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。
  5. By the analysis and study, it is showed that : 1 ) the lower weihe river main channel was at a balanceable state between aggradation and degradation and floodplain of the lower weihe river is a tiny aggradation state before the construction of the sanmenxia dam ; 2 ) the severe aggradation of the lower weihe river bed is mainly caused by the increasing riverbed elevation at tongguan after the construction of the sanmenxia dam ; 3 ) the main reason leading to the increasing riverbed elevation at tongguan is the unreasonable operation of the sanmenxia reservoir ; 4 ) the rate of the riverbed aggradation at tongguan reach and the lower weihe river reach are speeded by adverse condition of incoming water and sediment recently

    然後以實測資料為基礎分析研究了三門峽建庫前後潼關高程的變化規律以及渭河下遊河道的沖淤演變規律，分析研究表明：建庫前渭河下游主槽處于動態沖淤平衡狀態，灘地處于微淤狀態；建庫后，渭河下遊河道發生嚴重淤積主要是由於潼關高程的抬升造成的；潼關高程的抬升主要是由於三門峽水庫的不合理運用造成的，近期不利的水沙條件加劇了潼關河床的抬升速度和渭河下游的淤積。
  6. A 2 - d hydrodynamic - numerical model was applied to typical rocky rapids called jiyutan by comparing different computational models. based on the comparison of different schemes, the change of the discharge and the flow current in a branch were analyzed, and the relationship between the flow condition and excavation area, scope as well as mode was discussed, the conclusions show : ( 1 ) in a branching rocky rapids, the velocity may be reduced and flow condition can be improved by excavating one channel partly

    本文在對各種數學模型比較的基礎上，應用二維水動力數學模型研究典型石質汊流灘? ?廣西潯江鯽魚灘航道整治工程方案，通過各方案計算結果比較，分析了不同汊道的開挖及汊道內不同開挖面積、開挖范圍以及開挖方式所引起的分流比及工程區域航道水力條件的變化規律，研究結果表明： （ 1 ）對于石質汊流灘來說，在某一汊道通過局部開挖河槽，擴大過水斷面面積，可以達到降低工程段流速、改善局部水流條件的目的。
  7. The deposition of sediment in channels decreases the channel capacity and the flood-carrying capacity.

    泥沙淤積在河道內，減少了河槽容量和泄洪能力。
  8. The characteristic of bed regulating is that the width and area of main channel and medium flowing channel increased greatly during the sustained silting period and decreased during scouring period

    河道調整特點為持續沖刷時期主槽、中水河槽的河寬、面積都明顯增大，持續淤積時期則減小。
  9. The main measures are : damming improving flow condition riverbed excavation etc. riverbed excavation is always used in reducing velocity of a channel with bad flow condition. in singularity channel, velocity can be reduced with the increase of crossing area by excavating riverbeds

    整治採取的主要措施有：築壩壅水、改善流態、開挖河槽等等，對于流態惡劣的急流灘，常採用開挖河槽擴大過水斷面面積的方法來降低航道流速。
  10. 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規律的基礎上，研究調水調沙的流量、含沙量等主要水沙指標，可以解決河道輸沙減淤和河槽相對穩定問題。
  11. From the model experiments, riffles in observed channel disappeared and were replaced by narrow depth channel with deeper stages

    在實驗過程中，河道之河灘地形相繼消失，取而代之是明顯的深槽，使水深相對的提高。
  12. The test results show that the water - sediment regulation can reduce aggradations of the channel, increase its flowing capacity and improve the sediment delivery conditions of the channel in the lower river

    分析結果表明，調水調沙不僅能夠減少河道淤積，而且能夠有效增大主槽的過流能力，改善下遊河道排沙條件。
  13. Since boundary of the lower yellow river bed varies with the flow conditions, main channel of the stream continually shrank and flood control becomes rather difficult

    隨著黃河下游水沙條件的不斷變化，河道的邊界條件也隨之發生變化，主槽嚴重萎縮，泄洪能力日臻下降，防洪問題日益突出。
  14. Because the yili river belongs to plain broad and shallow moving river, the main channel changes greatly and swings to a large range, which leads to river crooked branching river type and s curved, many fork rivers, the river continent and the river beach in river center, alluvial shoal and beach. the width in some section of the river is up to about 3800m. in flood season it causes serious harm to farmland, factories, residents along two sides

    由於伊犁河屬于平原游蕩性寬淺河流，主槽變化不定，擺動幅度極大，河道多呈彎曲分叉河型和s型彎道、多叉河、河心洲，河心灘和沖擊淺灘及邊灘，部分河段河床寬度達3800m ，洪水季節對河道兩岸的田地，工廠，居民等造成極大的危害，素有「三十年河東，三十年河西」之稱。
  15. Analysis on variations of particle size of sediment in the main channel of the lower yellow river

    黃河下遊河道主槽淤積物粒徑變化分析
  16. First the author memorized the yellow river excavation history and concluded development of modern dredging science, and found that most researches of dredging are related to navigation regulation, little used to flood control especially in the yellow river with silty. based on the experiment of generalized physical model of the lower reach of the yellow river, and the study of the loaden flow mechanism and the dredging efficiency, the author get some new ideas as follows : 1

    通過對黃河疏浚的歷史以及現代疏浚工程學的發展進行了回顧和總結，認為已有的疏浚研究大多基於航道疏浚工程，對于防洪疏浚特別是在黃河這種多沙型河流上進行防洪疏浚的研究極為欠缺，本文基於黃河下遊河道概化模型試驗，對疏浚挖槽后水沙運動機理及效果等進行了研究，得到以下認識。
  17. An experimental research on notching wet beach of the yellow river with the short - delay blasting is made for eliminating the risk that the main river channel is often threatened by some horizontal and slanting streams occurred on the downstream of the river and solving the problems from the bend cut - off for river channel harnessing, water way dredging and the siltation of the water diversion outlets along the channel

    摘要為了利用爆破解決黃河下遊河道經常出現的橫河和料河威脅河道安全的險情以及河道整治中的裁彎取直、疏浚航道和河道引水口淤積的問題，在黃河濕灘上進行了微差爆破開槽試驗研究。
  18. ( 2 ) the key problem to the application of muskingum approach, in another word, there exists non - linear effect. therefore, to meet the demand of practical engineering to a more satisfactory extent, it is vital to convert the linear formula in muskingum model to a non - linear one

    2 、在水文學中馬斯京根（ muskingum ）法是河道洪水演算中廣泛應用的方法，因該槽蓄方程是線性的，即把k ， x在一定河段內假定為常數，這在某些情況下是不切實際的，為此必須將馬斯京根模型中線性的槽蓄方程非線性化，才能更好地滿足實際工程的需要。
  19. Abstract : variations of flow pattern, flow velocity in deep poo l and side bar, mainstream thread, and water surface, caused by excavation project, are investigated by two - dimensional mathematical model in an orthogonal curvili near coordinate system. the change of bed - load transport rate, and redeposition r ate are predicted. the influences of the excavation project on navigation are ana lyzed. grid - type and flat - type excavation alternatives are proposed and discuss ed

    文摘:採用正交曲線坐標系下的河道平面二維數學模型，研究了嘉陵江何家磧邊灘采砂后河道流勢、流態、灘槽流速、主流位置、水面高程及比降的變化規律，預測了采砂方案完成後卵石推移質輸沙率變化及其對航道的影響，並對格形開挖和平整開挖方案進行了比較分析
  20. 2. through studying the effect of the dredging length, found that it is not a linear relationship between the dredging length and the relatively reduced deposition, for example when dredging exceed a certain length, though the relatively reduced deposition still increase slowly, the depositing volumes begin to decrease

    挖槽長度對挖槽效果的影響的試驗研究結果表明，河道相對減淤量的增加與挖河長度的增加並不成等比例線性關系，即挖河長度超過一定值后，雖然河道相對減淤量還有緩慢增加，但減淤效率開始減小。
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