河道變化 的英文怎麼說

中文拼音 [hédàobiànhuà]
河道變化 英文
channel change
  • 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） ...
  • 河道 : river course; streamway; covalency; runway; cut; river channel河道變遷 channel change; migration ...
  1. 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。
  2. Some researchers have made study on this subject, such as the generation and evolution of frazil ice, shore ice, bottom ice, ice cover and ice jam, the resistance of freeze - up river, flow capacity and variation of water stage

    國內外一些學者通過原型觀測，試驗和數值模擬的方法對水內冰，岸冰，底冰，冰蓋和冰塞的生成和演變，封凍河道的阻力、過流能力和水位變化等有關問題進行了研究。
  3. From a branch of a small tree to a location of a village, from a climbing hillside to a trending mountains system, from the figure of a sheep to the melodious singing of a grassland, from a flash of ripples to a long river s mighty waters, the intimate mingling of lights and shadows clearly gives a brief account of specific motion sense and subtle change in every corner of the plateau, and therefore forms the plateau s total magnificent and beautiful outline

    從一棵小樹的樹丫到一個村莊的鋪陳，從一面緩坡的起伏到一個山系的走勢，從一隻綿羊的身影到一片草原的悠揚，從一道波光的閃現到一條大河的澎湃，光和影的親切交織清晰也勾勒出這高原每一處具體的動感和細微的變化，並進而組合出高原的雄渾美麗的整體輪廊。
  4. Aiming at the current situation and problems of the reclaim and construction for the yellow river riverfront landscape in lanzhou, as well as the natural landscape characteristics of the riverway changing progressively, the thesis sums up characteristics of lanzhou on the culture, economy, urban planning and oecology etc, and the interaction between those and lanzhou riverfront. based on the above, the principles and outlines, which should be kept to during various phases of landscape design on lanzhou riverfront, are concluded as a whole

    本文針對黃河蘭州段濱河地區景觀開發建設的現狀和存在的問題，以及逐步變遷的河道自然景觀特徵，歸納出蘭州文化、經濟、城市規劃、自然生態等不同專業層面的城市特點，以及它們與濱河地區之間的相互作用關系，由此分析推出蘭州濱河地區景觀設計在各個階段所應遵循的總體原則和設計要點。
  5. During recent decade and more, major and super floods have taken place frequently in the yangtse river and huai river. the natural phenomenon of flooding is inevitable. it is not a surefire plan only to take engineering measures for flood control while climatic variation is far from being known

    近十多年來在我國長江、淮河流域連續不斷發生的大洪水或特大洪水再次向我們展示了這樣一個道理，洪水是一種自然現象，當環球大的氣候因素及其變化規律遠未被認識時，試圖僅依靠工程措施來控制洪水並非萬全之策，逐步運用非工程措施，常常能起到「以柔克剛」 、 「以弱勝強」之功效。
  6. 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。
  7. By using the three - dimension acoustic doppler velocimeter to measure velocities of flow in an ecological river before and after arrangement of cropping loops, the velocity distribution, turbulence intensity and reynolds stress before and after arrangement of cropping loops are compared

    摘要採用三維超聲波多普勒測速儀對河道生態修復中種植圈布設前後的工況量測，比較了布設種植圈前後的流速分佈、紊動強度和雷諾應力的變化。
  8. Shipment traffic usually is heavy in littoral area, the navigation capability is required in many riverway. navigation lock was set to suit for the water level ' s variety caused by tide. for a long period, being lack of the quantified assessment on the influence of saltwater intrusion, approaches that freshwater is inpoured to the lock chamber are adopted lest the high concentration salt water be imported to the inland waterway, when the navigation lock is in operation. but such manner should not be reasonale enough

    沿海地區船運發達，很多河道有通航要求，為克服潮汐造成的水位變化而設置船閘。長期以來，由於缺乏對鹽水入侵內河河道產生影響的定量評估，在船閘運行過程中為防止高鹽度鹹水入侵內河，通常採用將內河淡水打入閘室的方式來調節通航水位，船閘的這種運行方式不盡合理。
  9. The system can be widely applied to the measuring of the length of ice in the channel, river, reservoir, the lake, and so on. the system can provide the credible data for the water conservancy system, is promising in the prospect of market

    本冰厚測報儀系統可廣泛應用於渠道、河流、水庫和湖泊冰層厚度、水位變化的自動檢測中，為國家的水利系統提供可靠的數據，具有很高的社會推廣價值。
  10. Though the water levels cross one section are almost equal, the velocities differ greatly. at the some cross - section, the velocity in the in the quirk may be double as that on the floodplain. the water surface will rise hi the southern branch because of the improper diffluence ratio, if using the designed diffluence col

    淮河入海水道河口段水位值橫向分佈相差無幾，而流速的橫向變化較大，泓灘平均流速差最大可達一倍以上，在現有的分流口設計條件下，若按設計的南北汊分流比，南分流口有壅水現象發生，如果南汊分流增大到800m ~ 3 / s左右時，則水流較為通暢。
  11. ( 4 ) the dike breach risk of the south bank is relative higher in wandering reaches. ( 5 ) the dike breach risk of the north bank is higher than the south bank in winding reaches. simultaneously, the evaluation results manifest that the evaluation indexes system established from the locomotion of incoming water and sediment load, the regional crustal stability, the evolvement of river regime and the stability of river dikes, can reflect the actual situation of hang river in the lower yellow river more fully

    評價結果同時表明，從水沙運動、區域地殼穩定性、河勢演變和堤防穩定性4個方面建立評價指標體系，能夠更加全面的反映黃河下游懸河的實際情況;運用多層次模糊綜合評判法能夠較好地解決影響因素眾多、作用機制復雜的懸河決溢風險問題;運用gis技術強大的空間分析功能，使黃河下游懸河不同空間位置的決溢風險得到了量化，可以客觀地反映黃河下遊河道不同空間位置決溢風險的差別，對于指導防洪和河道治理的實踐具有重要的現實意義。
  12. Study achievement appears as following aspects : ( 1 ) yellow river estuary gate river flow and tide flow mixed area is not keep standing deposition status, on special income water and sediment conditions, boundary conditions and oceanic power conditions, this area may on the scour status ; ( 2 ) observed from estuary sediment deposition distributing process : delta and sea offing area sediment deposition vary trend is similar, each part sediment deposition scale varies as wave shape ; ( 3 ) on estuary gate, affect the sediment deposition factors, primary factors are tide prop, the gate widens gradually, estuary gate have branches, brine induced flocculation. this paper study the estuary gate widen, estuary gate have branches to affect the river channel deposition in quantity ; ( 4 ) based on field measured data, for the first time, deduce the estuary sediment deposition and distributing regress formula which can estimate estuary different areas sediment deposition volume ; ( 5 ) this subject demonstrate the estuary delta coastline dynamic balance conception, build the relationship between the estuary income sediment with deposition land area, draw the following important conclusion : when estuary years - averaged income sediment keeps at 345 million tons, the delta coastline may on the dynamic balance status. ( 6 ) this subject firstly brings up estuary sediment optimized control conception, and has the primary study on the macroscopically optimized control conception method

    研究認為： （ 1 ）黃河河口口門逕流潮汐區域並非持續保持淤積狀態，在特定的來水來沙、邊界條件和海洋動力條件下，該區域可以處于沖刷狀態； （ 2 ）從河口泥沙沉積分配的過程來看：三角洲與濱海區泥沙的沉積變化趨勢是基本一致的，各部位的泥沙沉積比例變化基本呈波動狀態，且三角洲與濱海區泥沙的沉積比例與來沙量密切相關，基本成正比關系； （ 3 ）在口門處，影響泥沙沉淤的因素主要集中在潮汐頂托、口門逐漸加寬、河口門分汊、鹽水造成絮凝等，本報告主要對口門加寬，口門西妥理工大學工程碩士專業學位論文分漢對河道淤積的影響進行了定量分析: （一扣根據實測資料首次建立了河贖流路泥沙沉積分配的回歸計算式，據此可以預估計算河口不同區域泥沙的沉淤量; 、 5 ）本項研究首次論證了河口三角洲岸線動態平衡的概念，並建立了黃河河口來沙量與造陸面積的相關關系，得出了當河口多年平均來沙量維持在3 . 45億t時其河口三角洲岸線則可能處于動態平衡狀態的重要結論; 『 6 ）本項研究首次提出了河口泥沙優化調控的概念，並對其宏觀優化調控模式進行了初步探討。
  13. 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。
  14. 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。
  15. But for a long time past, the study on the river by scholars chiefly focused on the state of its silt, and the changes in its course and irrigation, with little discussion about its appellation

    但是，多年以來，學者們對黃河的研究多集中於黃河的泥沙情況、河道變遷和水利變化等問題，而對黃河名稱的由來論述甚少。
  16. A new method is presented. the travel time, including the time delays associated with overland folw pathways, is obtained. it is expected that the hillslope velocity and the stream velocity are different, and different equation is used. in the method, the fact that velocity increases going downstream in river systems is taken into account. after the travel time of each cell being calculated, the frequency distribution of the times of arrival of individual water droplets at the catchment outlet - giuh, is obtained

    提出了一種匯流時間計算方法，匯流時間中包括坡地漫流時間和河道匯流時間。方法中坡地單元的匯流速度與河道單元的匯流速度採用不同的計算公式，同時考慮流速沿河道向下游的變化。流域中每一個網格單元的匯流時間得到后，將其看作隨機變量，進行統計分析后，得到匯流時間的頻率分佈? giuh 。
  17. Answer : according to ranking regulation, to the disease of bridge sui, wadi foundation of stage of change, mound erodes adjustable adjuster undertakes circumstance and rail fixed observation, fill in " adjustable adjuster observation records rail book "

    答：按照上級規定，對橋隧的病害、河道變化、墩臺基礎沖刷情況及鋼軌伸縮調節器進行定期觀測，填寫《鋼軌伸縮調節器觀測記錄簿》 。
  18. The dissertation focus on the main conflict of flow and sediment change, by analyzing the flow and sediment features, and change in rivercourse of typical period in histry, collecting the data of riverbed change. according to the flow and sediment change condition, combining the existed water works, and based on the results of former researches, the study are conducted on the law of flow state change by comparing rivercourse conditions before and after the completion of sanmenxia project, which may provide some idea for flow state change when xiaolangdi project completed and put into operation and some basic clue for the prediction of variation trend of river section from tiexie to shendi, from shendi to tieqiao near zhengzhou, from tieqiao near zhengzhou to dongbatou, from dongbatou to gaocun and so on in the year 2010 and the period 2010 to 2020. the result may provide some reference for flood control of these wangdering river sections, and some guidelines for planning of water projects and arrangement of project sequence

    本課題緊緊抓住小浪底水庫運用后水沙變化這一主要矛盾，通過分析研究以往典型時期的水沙特點和河道演變特點，收集分析河床邊界條件變化資料，小浪底水庫運用后水沙資料變化，結合現有河道整治工程建設情況，總結前人的研究成果，重點研究三門峽水庫運用後下遊河道河勢變化的規律和特點，探索小浪底水庫運用後下遊河勢變化情況，分析預測游蕩性河道鐵謝至神堤、神堤至鄭州鐵橋、鄭州鐵橋至東壩頭、東壩頭至高村等各個河段在2010年， 2010年至2020年期間的河勢變化趨勢，為分析游蕩性河段的防洪形勢，指導河道整治工程建設的規劃和工程安排提供決策參考和依據。
  19. When xiaolangdi project completed and put into orperation, the inflow of water and sediment condition will be changed because of the regulation of the reservoir. especially the initial 14 years, the reservoir will hold up sediment and release clear water, which may affect the river sections in henan province, especially the wandering sections. it will result in changes of flow state and endangering the water works, because the longitudinal addend by scouring and lateral slope failure

    小浪底水庫建成運用后，通過水庫的調水調沙，改變了黃河下游的來水來沙條件，尤其是運用的前14年處于攔沙期，下泄清水，對河南河道的影響最為劇烈，對游蕩性河段的河勢變化將產生很大影響，河道縱向沖刷下切，橫向灘岸坍塌，工程出險將大量增加。
  20. The course changes frequently, and the area is so flat that a small change in the level of the river may inundate a considerable area

    河道變化多端，下游地區卻很平坦，水位少許上漲河流就會淹沒一大片土地。
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