dike field 中文意思是什麼
dike field
解釋
壩田-
In this paper, the numerical harbor should include following contents : 1. database of wave field, tidal current field, sediment field in researched area ; 2. database of ship styles. 3. numerical model used to analysis data. 4. plans of outer dike, utilities of sea line, and selections of waterway, which based on the above databases
本文認為，對于港區而言，數值化的內容應包括以下幾個方面: （ l ）所研究港區的波浪場、潮流場及泥沙場等自然條件數據庫的建立; （ 2 ）船型數據庫的建立; （ 3 ）數值分析模式的建立; （ 4 ）提出建立在自然條件基礎之上的外堤布置、碼頭岸線利用策略及航道的擬定方案（即優化模式的建立） ; （ 5 ）按照經濟最優原理快速準確地提出碼頭裝卸的策略及當前方案。 -
The hydrauli c model of gradual dike - break simulates numerically the 2 - d flow of gradual dike - break waves. it shows the variation of flow field on breach, and the complicated flow characteristic of the propagation, diffraction, reflection and deformation of the dike - break waves. the hydraulic model can realistically simulate the burst process of dike, and computational accuracy is satisfied with the engineering demands
本文建立逐漸潰堤的水力模型首次對二維逐漸潰堤波的流動問題進行了數值研究，揭示了逐漸潰堤過程中潰口處流場的變化情況，以及潰堤波的傳播、繞射、反射及變形的復雜運動特徵，能較好地模擬實際工程中的潰堤失事，模擬比較逼近於真實潰決過程，計算精度可滿足工程要求。 -
The flume experiment with single spur dike is carried out. water surface profile and velocity field of flow in flume are measured by manometer tube and propeller current meter respectively
首先進行了單丁壩水槽實驗，採用測壓管和旋漿流速儀對實驗水槽中水流的水位以及流速場進行了詳細的測量。 -
Horizontal circulation at the inlet of the upper approaching channel of three gorges project can affect the safety of navigation. boundary layers will separate along a curved dike causing horizontal circulation regions which affect the overall flow field and increase sedimentation
類似的由於流動邊界出現凸出障礙物引起邊界層分離，導致迴流發展、流態惡化，造成泥沙淤積等一系列問題的情況，在水利、航道及電站等工程中普遍存在。 -
Field test of dike construction with solidified lake dredged material
預裂爆破中爆生裂縫擴展的機理探討及預裂炮孔間距的設計方法 -
Impermeable wall interdicts or weakens waterpower contact of seepage intercomplementarity between groundwater inside dike and river outside dike. especially, mass continuous concrete wall may have made effect on groundwater power field, chemistry field and water resource
同時由於防滲墻阻斷或減弱了堤內地下水與堤外江水滲流互補的水力聯系，特別是建設大規模連續防滲墻可能對地下水動力場、水化學場以及地下水資源等產生影響。 -
The difficulties of this problem are as follows : there is a grate discrepancy of geology condition of dike in middle - lower reaches of yangtze river, the facts which affect groundwater power field and water chemistry field not only include geologic structure of dike, topography and river network, precipitation infiltration and evaporation condition, but also are closely related to the design scheme of impermeable wall, construction method and construction quality
本課題研究的難點在於長江中下游堤基工程地質條件差異較大，影響地下水動力場、水化學場的因素不僅與堤基地質結構、地形與河網分佈、降水入滲及蒸發條件，而且與防滲墻的設計方案、施工工法及施工質量等密切相關。 -
Abstract : the agricultural cultivated land types are of connected relationship. the evaluation and development of dike field, terrace and sloping field is a developing course from high to low, their benefits have characters from simple to complicatedness and from single to comprehensiveness. by comparative analysis of their benefits, the potential davantage of agricultural cultivated land in hill and gully region was brought up
文摘:黃土丘陵溝壑區農耕地類型具有裙帶關系，從溝壩地、梯田和坡耕地的演化與發展來看，具有從高位到低位的時空演化過程，其效益具有由簡單到復雜，由單項到綜合的遷變過程。 -
Based on hydrogeology and engineering geology reconnaissance, this problem constructs groundwater power field and system of chemistry characteristic through comprehensive analysis and research. monitoring groundwater table and water quality by means of choosing representative dike section, the paper appraises and forecasts that the influence to groundwater surroundings by building impermeable wall is or not unhealthy include the lever and the scope
本課題的特色是在水文、工程地質勘察基礎上，經一個水文年長期水位監測，經綜合分析研究后，建立地下水動力場和化學特徵系統，通過選擇代表性堤段對防滲墻建造前後地下水位和水質進行監測，評價和預測防滲墻建設對地下水環境是否存在不良影響以及影響的程度和范圍。
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