洪水系數 的英文怎麼說
中文拼音 [hóngshuǐxìshǔ]
洪水系數
英文
flood coefficient- 洪 : i 形容詞(大) big; vast; grand Ⅱ名詞1. (洪水) flood 2. (姓氏) a surname
- 水 : 名詞1 (由兩個氫原子和一個氧原子結合而成的液體) water 2 (河流) river 3 (指江、河、湖、海、洋...
- 系 : 系動詞(打結; 扣) tie; fasten; do up; button up
- 數 : 數副詞(屢次) frequently; repeatedly
- 洪水 : waterflood; deluge; flood; flowage; torrent; spate; flood water; [義大利] acqua alta洪水泛濫 floo...
- 系數 : [數學] coefficient; ratio; modulus; quotient; factor
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So this article analyses deeply in the method of ensur ' my designing food rolume which is an important element to affect the " designimy height of bridge " it brings forward an " arverage optiminmy suiting line " method which is a bondage discommode series at the same time it puts forward a ensurmy principle for rough coefficient " and " fallimy flood proportion which are both suitable to heilongjiang province at last this article introduces the " three - days rainimy rolume " method
本文立足於黑龍江省各種河流的洪水特點,結合以往工程實際,對影響跨河橋梁設計高度的主要因素? ?設計洪水流量及其相應洪水位的確定方法加以詳細分析。提出有約束不連序系列的加權優化適線法及適合於黑龍江省的河流粗糙系數和洪水比降的確定原則,並介紹了三日降雨量法。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。For jiangpinghe double - curved arch dam, 3 - d elasto - plastic fem is made, in which the point safety factors of the dam - abutments system and the safety margin for coefficients of sliding resistance on 7 potential sliding blocks of the dam before and after the reinforcement of the dam are calculated under the conditions of the normal storage level and the design flood level respectively based on the results from the analysis made with fem
摘要對江坪河雙曲拱壩進行了三維彈塑性有限元分析,利用有限元應力成果分別計算了正常蓄水位、設計洪水位等3種工況下加固前後壩體壩肩系統的點安全系數和7個可能滑動塊體的抗滑富餘系數。A flood peak cut coefficient ( ) is proposed to measure the affection of the flood hydrograph for the risk calculating of the flood discharge
本文分析了洪水過程這一不確定性因素,並用洪峰削減系數將洪水過程的不確定性量化。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。The geographic information systems ( gis ) allows the modulation and simulation of different scenarios and the graphic representation of the different alternatives. in order to present and explain to a non expert public like politicians and the population in the floodplain, multimedia technology will play a valuable role trying to make the decision making process more participated
(四)在水利工程管理方面,從舊有的單純的水利工情數據庫擴展到以水利工情信息為基礎數據背景的工程風險管理系統,對各類防洪工程在洪水狀態下的安全性進行評估、城市防洪工程規劃、城市發展與防洪工程相結合、工程實施投資效益分析、工程建設對環境質量的影響等等。The main work is done with the help of model experiment. in the flood - relief experiment, the flood carrying capacity of spillway tunnel is checked. in the hydraulic experiment of the diversion power conduit system, the followings are studied : the flow condition and fluctuation in the surge chamber, the distribution of flow velocity before the rack in the surge shaft, the amplitude of stage in the quick gate bay etc. the test step, content and results of different proposals are introduced in details
本項優化試驗研究的目的主要在於,通過泄洪系統整體水力學試驗,校核泄洪洞的泄流能力;通過發電引水系統整體水力學試驗,研究調壓井內水流流態和水位波動情況、調壓井內攔污柵前流速分佈情況;確定快速閘門井內水位波動幅度;試驗確定壓力管道水擊壓力穿井系數以及泄洪洞弧形門處的水壓力。This article described the deformation features of taojiaba landslide and analyzed the inner factors, geologic setting, topography, morphology, stratum, lithology and texture, and the external influence factors, precipitation, flood, human activity, neotectonic activity and earthquake, and the transform features of landslide in the near future, and evaluate stability of landslide through the section coefficient method calculation on basis for landslide mechanism analysis and control work
摘要陶家壩滑坡基本特徵顯示,滑坡變形的主要影響因素有:地質環境因素(地形地貌、地層巖性、物質結構) 、外界影響因素(降水因素、洪水因素、人為因素、新構造及地震) ,以及滑坡近期變形特徵,通過剖面遞推系數法計算,對滑坡的穩定性進行了評價,為滑坡機制分析和優化整治措施提供依據。In the general design and analysis methods for problems of the breakwater stability, the concept of compositive safety factors is used usually. however, floodwater, storm wave and beach erosion as well as properties of soil medium are always random, which may have uncertainties
在防浪堤壩的設計中,傳統的安全性能分析方法採用綜合的安全系數概念,但洪水、風浪、河道沖刷、土力學特性等因子都是隨機性的,具有一定的不確定性。In this paper, according to the characters of river ecosystem, the concept of ecohydrological regime is proposed, and the multi - parameter system of the ecological water requirements ( minimum and appropriated ecological water demand, ecological water requirement in flood season ) are established, which are regarded as flow requirement for river health
本文首先從河流生態系統特性入手,提出生態水文季節,構建了多參數生態需水(最小生態需水、適宜生態需水、洪水期生態需水)體系並分析其內涵,組成了能反映河流生態系統健康的流量等級。The existed optimal models for flood management are summarized ; especially the real time optimal operation models for reservoir and their solution methods are discussed
在歸納分析現有洪水管理系統最優化方法與數學模型基礎上,討論了洪水實時調度模型特點及一般求解途徑。In theory, disaster tolerance technology includes heartbeat detection technology and many other technical means, such as two module backup, computer cluster, storage area network, etc. in computer systems, when human operation failure occurs, system error occurs, or even physical attack, lack of power, flood and other disaster occur, disaster tolerance technology can prevent system from losing data, meanwhile, provide high availability service
從范疇上講,容災技術包括心跳檢測技術在內的許多技術手段,如雙機熱備份,計算機集群,存儲區域網路等。在計算機系統發生人為失誤,系統錯誤,甚至受到外來打擊或者遭到停電,洪水等災難性的破壞時,容災技術仍能使系統在少損失數據甚至不損失數據的情況下對外提供高可用不間斷或間斷時間很短的服務。Whereafter, based on the analysis on the flood influence for traffic lines, the research is centered on the following parts : firstly, the destroying modes, reasons and mechanism of flooded lines are discussed, and the frameworks and countermeasures of preventing and controlling hazards system are put forward ; secondly, the ways of region forecasting for the landslide are analyzed and the automation of landslide forecast for certain site through visual programming is realized. furthermore, the function of dynamic segmentation in arc view is made use of to realize the forecast result ' s visualization ; thirdly, the reasons and patterns of roadbed subsidence are discussed and the methods of forecasting subsidence based on the gm ( 1, 1 ) model are put forward. then the applications of the arcview software and its extended module on the study of roadbed subsidence are debates upon ; fourthly, an analysis on the sources of flood for traffic lines, which situate in the reservoir coverage area, is given
接著,論文探討了山區交通線路災害的特點、分類、時間和空間分佈規律以及災害的防治原則和對策等;然後,以洪水災害對交通線路的毀壞為主線,重點研究和分析了以下幾個問題:第一,探討了洪水對交通線路的破壞方式,水毀原因以及水毀機理,並提出了交通線路水毀防禦系統框架和對策;第二,分析了雨季邊坡塌方災害的區段預測方法;通過可視化編程,編制了雨季邊坡塌方災害的工點預報程序,並結合arcview實現了預測結果的可視化;第三,對路基沉陷原因和模式進行了分析,並提出利用gm ( 1 , 1 )模型對路基沉陷區進行分析和預測,最後論述了arcview軟體及其擴展模塊在沉陷區研究分析中的應用;第四,對汛期庫區線路災害的原因進行了分析,並探討了利用數量化理論對路基防護工程抗洪能力進行預測的意義;第五,提出從風險的角度對交通線路的防災減災進行管理,對風險估計的相關問題進行了論述,並探討了交通線路水害危險區段的劃分問題。( 2 ) a series of experiments on time scale distortion are made with real river model, inflow and outflow boundary condition, and continuous simulation. by means of analysis of the experimental data on model water level, water - surface gradient, cross velocity, outflow discharge process and the sediment transportation capacity, the main physical reasons for the above hydraulic parameters deviations caused by time scale distortion are illustrated : response delay of model channel storage capacity and rate of water level with time
( 2 )採用真實的河工模型和入出流邊界控制條件以及連續模擬的方法進行了有關時間變態率的系列試驗,通過模型水位、比降、流速、出口流量過程線和斷面挾沙力試驗資料的分析,闡明了時間變態引起上述各種水力參數偏離的主要物理原因:模型的槽蓄響應和洪水過程時間變化率的響應滯后。According to the instance of the arch dam built, take the discount quotiety, the verification flood water level, the frictional quotiety and, the agglomerate force and as stochastic variable quotiety, calculate the reliability index of the abutment with the calculational programme after the average value and variable quotiety is known
對于所取的拱壩實例,以揚壓力折減系數,校核洪水位,摩擦系數、 ,凝聚力、為隨機變量,在已知其均值並設定變異系數的前提下,利用電算程序計算其壩肩巖體的可靠指標。Flood hazard risk management decision support system, fhrmdss include of geographic environment. social economy and engineering technology with much data. it need to think about many fields during decision - making process. the aim of this study is build a flood decision support system with the flood risk management
(二)通過對目前已經建成的防洪決策支持系統的深入了解的基礎上,重新從水利數據管理,水利工程管理,洪災風險管理,洪水調度,城市防洪,會商決策以及業務辦公等方面設計全新的防洪決策支持系統的總體框架。For example, irri ' s scientists have found a gene that allows an indian rice strain to survive total immersion for several weeks, and have cross - bred it into a strain favoured by farmers in flood - prone bangladesh
例如,國際水稻研究所的科學家發現了一個基因可使一種印度水稻系在完全沉浸下生存數周,並和易發洪水的孟加拉國農民喜歡的一種水稻共雜交出一個品系。Speciality in fields designed storm, designed flood, hydrological forecast, flood control information system, decision support system, data visualisation. ( 2 ) speciality in techniques globe optimization method, interpolation for scattered data, contouring method, design and development for hydrologic forcast and decision support system
業務特長領域:設計暴雨、設計洪水、洪水預報、防汛信息系統、決策支持系統、數據可視化; ( 2 )業務特長技術:全局最優化技術、空間散點數據插值技術、等值線勾繪技術、洪水預報系統設計開發、決策支持系統設計開發。This thesis concludes the flood control situation, engineering measures and the situation of optimal dispatch method. it studies flood control engineering system, which is composed of flood prevention reservoir, river course dyke and natural detention basin, and the relationship between various flood engineering measures according to the composition and characteristics of the flood control engineering of the middle - lower reaches of beijiang. it suggests the objective function based on the least flood loss and the optimal dispatch strategy structure of the middle - lower reaches of beijiang bound with the requirements of the flood gradual progress equation combined with hydrology and hydraulics
本論文總結了我國防洪情勢、防洪工程措施及其優化調度方法研究的現狀;針對珠江流域北江中下游防洪體系的組成及其防洪工程的特性,研究由防洪水庫、河道堤防和天然滯洪區共同組成的防洪工程體系中各防洪工程措施之間的關系;提出了以洪災損失最小為目標函數、以水文學和水力學相結合的洪水演進方程等要求為約束條件的北江中下游防洪體系優化調度策略框架。Associated with the project of numerical modeling of hydraulics and water quality in hongzehu river networks in the north of jiangsu province, which founded by the department of environment of jiangsu government, two models of water quantity and water quality are developed. on the basis of the results from the numerical simulation, the assimilation capacity of the hongzehu river networks are studied
本文結合江蘇省環保廳的「江蘇省水環境容量研究」課題,對江蘇北部洪澤湖及周邊河網水系建立了河網與湖泊耦聯的水力?水質模型,並在湖泊水系的水量、水質數值模擬的基礎上,對該水系的水環境容量進行了研究。分享友人