河成泥沙 的英文怎麼說

中文拼音 [héchéngníshā]
河成泥沙 英文
fluvial material
  • 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...
  • 成 : Ⅰ動詞1 （完成; 成功） accomplish; succeed 2 （成為; 變為） become; turn into 3 （成全） help comp...
  • 泥 : 泥名詞1 （含水的半固體狀的土） mud; mire 2 （像泥的東西） any paste like matter; mashed vegetable...
  • 沙 : 沙動詞[方言] （搖動以清除雜物） shake
  • 泥沙 : [地] silt; sediment
  1. By making some assumptions, collision frequency were presented. then the the flocculation kinetics model was established through population balance equation. comparison of experimental data and modeling results indicate that there are the same trend between the two. so the model can predict floes number and size during flocculation of yellow river ' s loess particles without using empirical parameters. the tem and sem were used to obsever floes in the study of floe structure. the flocculation was divided as flocculi, floc and floe aggregate. the floes structure model was established by assumption that particles position in floe accords with tetrahedron. the fractal dimension of model and experimental floes was found to be coincidentso the model can reflect the structure of flocs formed in flocculation of yellow river ' s loess particles by macromolecule flocculant at a certain extent

    最後，本文還對絮凝動力學和絮體結構進行了研究，在前人研究的基礎上，針對高分子絮凝黃河泥沙，對絮凝過程作了一些符合試驗條件的假設，建立了顆粒碰撞頻率表達式，應用了顆粒數量平衡方程，從而建立了絮凝過程的動力學生長模型，模型計算結果與試驗數據對比表明，二者趨勢一致，在沒有使用經驗參數的情況下基本上能夠描述黃河泥沙絮凝過程中絮體數量和尺寸分佈的變化過程；對絮體結構的研究中，應用掃描電子顯微鏡和透射電子顯微鏡對絮體進行了觀察，將絮體分為絮粒、絮團和絮網三個不同的生長階段，通過假設顆粒結合位置符西安建築科技大學博士學位論文合正四面體，建立了絮體結構模型，計算得到的模型絮體分形維數基本與試驗中的實際絮體相符，在一定程度上能夠反映高分子絮凝黃河泥沙生成的絮體結構。
  2. According to estimation, hold water in new china previously, only the silt of bohai sea of yellow river input, average and annual have left and right sides of 1 billion stere, plus other river and the silt that force delivers wind, add up to has 20, above of 3 billion stere

    據估計，在新中國成立以前，僅黃河輸入渤海的泥沙，平均每年有10億立方米左右，再加上其他河流和風力送來的泥沙，總計有20 ? 30億立方米以上。
  3. Yellow river estuary is typical weak tide and high sediment deposition estuary, the yellow river sediment transport and settling deposition process is the capital factor to determine estuary evolvement characteristics. any method provided for estuary management, there is no exception to have tight relationship with estuary sediment transport and settling deposition process. this paper summarized the yellow river estuary basic characteristics firstly, point out existing problem in this research domain

    黃河河口系典型的弱潮多沙堆積性河口，黃河河口泥沙的輸移擴散和沉積過程是決定河口演變發展特徵的首要因素，黃河河口任何一項治理措施的提出，無一例外均與河口泥沙的輸移和沉積分佈狀況存在密切關系本文首先對黃河河口的基本特性進行了概括總結，在簡略回顧黃河河口泥沙輸移與沉積的有關研究成果的基礎上，指出了當前在此研究領域內存在的問題。
  4. 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。
  5. 8. a simplified 3 - d natural river flow and sediment transport model is developed based on hydrostatic pressure distribution. the model has been applied to investigate the 3 - d flow and suspended - load transport in nanjing river reach with two branches

    （ 8 ）天然三維水流泥沙簡化數值模型，成功地模擬南京某河段水流運動和多分汊河道水沙計算，結果可靠並滿足精度。
  6. In this paper, the deposition evolution process in qtx reservoir are studied, the incoming water and sediment, the operation data, and the time and space distribution of longitudinal and lateral sedimentation in reservoir are analyzed in detail, and the longitudinal scouring and sedimentation and lateral deformation law in reservoir tidal flat and mainstream under different operation way are summarized in every operation period

    本文以黃河青銅峽水利水電樞紐工程水庫淤積演變過程為研究對象，對青銅峽水庫來水來沙組成、水庫運行資料、水庫縱橫向泥沙淤積時空分佈等進行了較詳細的分析，總結了青銅峽水庫各個運行時期不同運行方式下水庫灘槽縱向沖淤和橫向變形規律。
  7. The bank was formed by the mud and sand deposited here over a long period of time.

    河裡的泥沙淤積在這里，年深日久便成了沙洲。
  8. In addition, the microcosmic stream, especially suspended load ( mainly suspended soils and sands ) reflected on the characteristic of transported sands " streams, and always silt up and form shoal in the place where the stream velocity is lower and river steam return easy

    河道的微觀水流，特別是懸浮物（主要是懸浮泥沙）反映輸沙水流淤積特性，總是在流速緩慢、易迴流的地方淤積、形成新生沙洲，為正在發生及將來發生的河道淤積和演變打下基礎。
  9. Due to issues of dongting lake districts flood composition, the evolution of sediment flow, the river and lake ( r & l ) distribution characteristic as well as the layout of r & l - dredging engineering, the article simulated the model of the dongting lake terrain change by using the gis technology and adopted the limited volumetric method to establish the two - dimensional hydraulics computation model of lake in order to forecast the water level, the flow capacity, the speed of flow and changes of flow field after implemented the project, which have provided the reliable theoretic basis for the decision - making and implementation of renovation for river course, canal and harbor and river course - dredging engineering

    摘要針對洞庭湖區的洪水組成、水流泥沙演變、河道湖泊水系分佈特點以及河道湖泊疏浚工程布局情況，利用gis技術模擬洞庭湖地形變化，採用有限體積法建立了湖泊二維水力學計算模型預測疏浚工程實施后的水位、流量、流速流場變化，為河道、航道港口整治、河道疏浚清淤等工程決策與實施提供了可靠理論依據。
  10. Finally the constitution, function, principle and application range of an automatic system for monitoring sediment with r ray and velocity of river flow is described in detail

    本論文最後詳細闡述了射線河流泥沙含量和流速自動化監測系統的組成、功能、工作原理以及應用范圍。
  11. According to the test results from the yellow river water - sediment regulation, especially the first test, e paper analyzes the results of the scouring or deposition in the lower river and the area of the river - mouth bar, the adjustment of the channel morphology, the effect of channel regulation and the changes of flowing capacity of the lower reaches

    根據這兩次黃河調水調沙試驗成果，特別是首次調水調沙試驗成果，對下遊河道沖淤效果、河口攔門沙區泥沙沖淤量及其分佈、河勢調整、整治工程作用及河道過流能力變化進行了分析。
  12. The paper analyzes and summarizes the following laws of distinctive sediment yield produced in storm floods of the region based on predecessors ' study : storm is the main dynamic force of erosive sediment yield and storm, flood and sediment exist an inevitable relation ; the flood occurring time is concentrated with high peaks and huge volume, suddenly rising and suddenly falling and has decisive influence to the formation of a major flood peak in the middle yellow river ; the main reasons of concentrated coarse sediment of the river is severe erosive sediment yield, strong sediment transporting capacity and high sediment concentration ; the important influence of frequent or continued storm floods happened in he - long reach especially in coarse sediment concentrated region to the sediment transport of the yellow river and ; along with the increase of harnessing, regional flood trend is becoming smaller but the variation of sediment quantity is not obvious and the reaction of peak discharge and flood runoff of majority tributaries are not sensitive, showing that a general and normal engineering works can not effectively control regional major floods especially the sediment of an extraordinary flood

    摘要在前人研究的基礎上分析總結了該區特有的暴雨洪水產沙規律：暴雨是侵蝕產沙的主要動力，暴雨、洪水、泥沙之間存在著必然的關系；洪水發生時間集中，峰高量大，暴漲暴落，對黃河中游大洪峰的形成具有決定性影響；侵蝕產沙強烈而粗泥沙集中，輸沙能力強，洪水含沙量高，是黃河粗泥沙的集中來源地；河龍區間特別是粗泥沙集中來源區頻繁或連續的暴雨洪水對黃河輸沙有重要影響；隨著治理水平的提高，區域洪水有減小趨勢，但泥沙量變化不明顯，大部分支流的洪峰流量、洪水含水量反應不敏感，說明一般規模和水平的治理工程還不能有效控制區域大洪水特別是特大洪水的泥沙。
  13. So far as the alluvial fiver is concerned, the sediment - carrying capacity of flow and hydraulic geometry of river channel can be regulated by regulating the composition of flow rate, silt concentration and sediment ( water and sediment regulation ) during water and sediment discharge ; with which the relative balance for water and sediment discharge and the river channel evolution can be obtained

    摘要沖積性河流的河床在輸水輸沙過程中，調節流量及含沙量和泥沙組成（調水調沙）可以調節河床水力幾何形態和水流挾沙力，追求水沙輸運和河床演變的相對平衡。
  14. Qualitative analysis on the effect of flood control and engineering safety -, seizing lots of water conservancy effective adjust storage. then making water level risen and reservoir backwater enlarged in the same flow level ? effect on beach and the buildings across river, soil salinization caused by flow from a lower to a higher place and unsmooth groundwater drainage destroy of travel resource caused by disorder enclose tideland for cultivation in reservoir silt up flood plain are given, then presents enclose tideland for cultivation dyke is important cause which water level rise in reservoir

    本文從青銅峽水庫泥沙淤積入手，分析水庫泥沙淤積特性和庫區圍墾堤開發利用淤積灘地的現狀，對防洪安全及工程安全的影響、侵佔大量的有效調蓄庫容、造成同級流量下水庫水位抬升水庫回水上延、對沿岸及過河建築構成影響、因水位抬升致使庫區周邊灌區地下水排水不暢乃至倒灌而造成土地鹽堿化、對水庫庫區大量淤積灘地無序圍墾造成旅遊資源破壞等五方面影響的定性分析，提出庫區圍墾堤是水庫水位抬升的重要原因。
  15. Its sediment is from the upstream of linjiacun and jinghe river mostly, which is a tributary of the weihe river

    泥沙主要來自支流涇河及林家村站以上地區，徑流主要來自林家村站至成陽站區間流域。
  16. It proposes that under the drying climate background, the lakes disappeared mainly because that : firstly clay and sand silted up by the yellow river flooding ; secondly human activities generated great effects

    認為在氣候變乾的大背景下，湖泊消失的原因主要有兩個：一是黃河泛濫所造成的小清河流域的泥沙淤積；二是疏浚河道、圍湖造田、過渡利用水資源等人類活動的影響。
  17. Complicated hydrologic and geographic conditions, and the large scale of the xiaolangdi hydraulic project on the yellow river are introduced briefly. three desilting tunnels are designed to meet the requirements of flood control, sediment discharge and runoff regulation. according to the performance requirements of desilting tunnels, the tunnel lining down - stream of the grouting curtain is designed to be post - tensional prestressed lining. on the basis of investigation and research, experiements and analysis, the unbonded prestressing system is used. it is the largest unbonded prestressed tunnel lining project in the world, and the first one in china

    簡介黃河小浪底水利樞紐復雜的水文、地質條件以及龐大的工程規模.該樞紐設計有3條排沙洞，擔負著泄洪、排沙、調節徑流和保證進水口不被泥沙淤堵的任務.根據排沙洞的水庫運用要求，灌漿帷幕下游排沙洞洞身段設計為混凝土后張預應力隧洞.通過大量的調研、試驗、分析論證，在施工前確定該預應力方案選用無粘結預應力系統，成為目前世界上規模最大的無粘結預應力隧洞襯砌工程，在國內尚屬首例
  18. There is sharp gradient in top and small gradient in bottom. the ability of removing flood is high in top and it is small in bottom correspondingly. sediment silt up continually, so the bed of river is jacked up year by year and become the famous river on land

    由於泥沙含量高，現行河道已行水140餘年，山東段河床上寬下窄，坡度上陡下緩，排洪能力上大下小，在泥沙淤積作用下，河床逐年抬高，成為世界上著名的地上「懸河」 。
  19. Alluvial soil a type of soil formed on river floodplains and deltas, where new sediment is deposited on the land during floods

    沖積土：在河流漫灘和三角洲地帶由洪水沖刷泥沙沉積而形成的土壤類型。
  20. With ecotype watershed construction for target, make good eco - environment, production development and life wealthy come true, lie the economy and environment foundation for building a well - off society ; controlling effectively the sediment entering into the yellow river to meet the country ’ s demand, ensure yellow river safe ; making the watershed as a unit, the administrative region divisions and the watershed region divisions combine together ; with comprehensive management for center, various measures can be taken ; taking water - sediment balance theory as foundation, build up the relatively constant dam system ; taking science and technology as support, plan and design check - dams scientifically, and rightly evaluate the comprehensive benefits of check - dam ; on the basis of small watershed integrated management model, carry on managements, demonstration and extension in the large demonstration area

    以生態型流域建設為目標，實現生態良好、生產發展、生活富裕，為建設小康社會奠定經濟和環境基礎;以有效控制入黃泥沙為國家需求，確保黃河安瀾;以流域為單元，行政分區和流域分區相結合;以綜合整治為中心，多種措施並舉;以水沙平衡理論為基礎，建立相對穩定的壩系;以科技為支撐，科學規劃和建設淤地壩，正確評價淤地壩的綜合效益;在小流域綜合治理模式的基礎上，開展大示範區成片治理、示範及推廣。
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