水面下的沖刷 的英文怎麼說
中文拼音 [shuǐmiànxiàdechōngshuā]
水面下的沖刷
英文
subsurface erosion- 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...
- 面 : Ⅰ名詞1 (頭的前部; 臉) face 2 (物體的表面) surface; top 3 (外露的一層或正面) outside; the ri...
- 下 : 下動詞1. (用在動詞后,表示由高處到低處) 2. (用在動詞后, 表示有空間, 能容納) 3. (用在動詞后, 表示動作的完成或結果)
- 的 : 4次方是 The fourth power of 2 is direction
- 刷 : 刷構詞成分。
- 水面 : the surface of the water; table水面操縱 surface manoeuvering; 水面導航 surface navigation; 水面發...
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The effective adhesion of permeable base and asphalt pavement, good residence of scouring property of mixture and good drainable property are benefit for undersurface of pavement and permeable base course to keep good successive contact condition
大孔隙水泥穩定碎石排水基層和瀝青面層的有效聯結、混合料本身良好的抗沖刷性能和良好的排水性能,有利於瀝青下面層和排水基層的層間接觸條件維持在連續狀態。What ' s more, we put forward some experienced formulas on the basis of the cortical analysis. the result of the research show that by installing diffluent piers with low ridge, we can eliminate the root of oscillatiny water jump, perfect the energy dissipation effect of water jump, also, we can improve the flow condition of down - stream. the fact that the main flow of down - stream is in the middle, not only effectively lower the speed of the bottom flow in the ridge rear, alleviate the erosion to the river bed, but also avoid the heavy wave resulted from the main flow in the surface, thus improve the surface wave of down - stream obviously. we can work out the body style parameters of diffluent piers with low ridge according to the project flow condition and experience formulas, and then reckon the down - stream surface wave condition for the protected building of the down - stream bank
研究結果表明:設置低坎分流墩后,消除了擺動水躍水舌擺動的根源,提高了水躍的消能效果,改善了下游水流流態。下游水體的主流在中部,既有效的降低了坎后水流底流速,減輕水流對河床的沖刷,又避免了主流位於表面導致波浪過大的結果,下游的水面波浪明顯得到削減。依據經驗公式,可根據工程水流條件設計出低坎分流墩的體型參數,進而估算出下游沿程的水面波浪,為下游岸邊的砌護提供依據。When it rains, the water flows over these surfaces, picking up animal feces and other pollutants and washing them into drainage ditches or storm drains, many of which lead directly to urban lakes, coastal creeks or beach areas
一旦下雨,流經這些地面的水流,就會連帶將動物糞便及其他污染物沖刷到排水溝或雨水溝,而這些溝渠大部份又直通到都市內的湖泊、海岸溪流或海灘地區。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。In this paper, the flush function is divided into two aspects. one is the process flushing the inner wall of the closet bowl ; the other is the discharge of the dirty objects under the action of water flow
針對其功能,本文將坐便器的沖水過程分解為兩方面進行研究,其一是對水包內壁的沖刷過程,另外則是在水流沖力作用下的排污過程。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。In the article, it states another model of oxygen corrosion - corrosion caused by dissolving oxygen, it causes damage on the metal wall surface by oxygenation when the oxygen content in the water is much higer and it is affected by some extra factors ( such as temperature, degree of the acid and the basicity, the content of solid, the water power of scouring and so on )
本文講述的是另一種形式的氧腐蝕溶解氧的腐蝕,即由於水中氧含量較高在一定外加條件作用下(如溫度、酸堿度、固含量、水力沖刷等)而引起金屬壁面的氧化破壞。Based on the analysis of satellite images of various periods, landform data and river channel transverse section evolution in the lower yellow river, the characteristics of the river channel boundary condition changes at different location are clarified as middle flood channel flood transport width and area are evidently decreased especially for the main channel with comparison to 1950s, beach area that is unimpeded before become blocked because of road, irrigation channel constructed on it, and consequently intensify high edge of beach and lowering dyke and river
在現場查勘的基礎上,通過對丹江口水庫和小浪底水庫攔沙初期下遊河道演變、排洪能力變化特點的對比,分析了黃河下游防洪面臨的新形勢:小浪底水庫攔沙初期,下遊河道發生沖刷,但艾山以下窄河段沖淤變化不大,近年來形成的淤積萎縮的狀況難以很快改觀,游蕩性河段調整劇烈,工程出險機遇增大,河道水位流量關系中水流量以下部分同流量水位明顯降低,中水流量以上部分水位降低幅度可能會明顯偏小,防洪形勢仍不容樂觀。5. based on the physical model, summarized the general mode of river development in excavated segment with its up and lower influence reach after dredging, it means that gradually deposit in dredging segment while wash out in up reach, and the change intensities are weakening as the time goes on
概括總結出了河段疏浚挖槽后,疏浚挖槽河段及其上下影響河段的河床演變及水面線變化的模式,即挖槽段逐漸回淤,挖槽上游段逐漸沖刷,並且其回淤及沖刷的強度隨時間的推移由大變小。It shows that the water level in the definite reach is lower than that with same discharges before dredging river, the surface slope on upper reaches dredged is enlarged and deposition load on bed is reduced or eroded
主要表現在可以引起一定范圍河段內的水位較挖河前同流量下有所降低,開挖上遊河段水面比降增大,床面淤積量有所減少或發生沖刷。The reason to creates this kind of destruction to be very many, the main of them is that the apron partially has not been able fully to display it to eliminate energy affect so causes the ditch bed to wash out, forms flushes the pit, leading to the apron, to guard against flushes the trough and both banks slope protection destruction, for a long time, disappear power design of plunge basin and layout have been focused on disappear power. but not to give the enough value on uses the sea to inundate the section to disappear power and adjust speed to reduced downriver washes out
水閘閘下沖刷破壞的部位絕大多數發生在消力池下的海漫和防沖槽處,造成這種破壞的原因很多,其中很大一部分是由於海漫部分未能充分發揮其消能作用而引起渠床沖刷,形成沖坑,導致海漫、防沖槽及兩岸護坡的破壞。一直以來,人們把消能的研究重點放在消力池的消能設計及平面布置上,而對海漫段消能及調整流速功能研究甚少,至於對海漫加糙水流運動建立數學模型,在國內外還很少見相關的論文資料。( 2 ) the results of the rainfall - affected runoff scouring experiments in lab. when the rainfall intensity was less than l. omm / min, the soil erosion caused by the combination of rainfall and the upslope runoff was more than that caused by only the simulated rainfall. when the rainfall intensity was more than 2. 0mm / min, the upslope runoff strengthened the effect of the runoff yielded in the local area on the dyke slope surface, and the effect increased with an increase of rainfall intensity
2 、室內模擬降雨+放水沖刷試驗結果雨強小(如i 1 . 0mm min )時,上游注入水量對戧坡侵蝕作用比降雨在戧坡上所產生徑流的侵蝕大;雨強大時( i 2 . 0mm min ) ,上游水量下泄與當地降雨徑流一起增強對戧坡面的侵蝕作用,雨強越大,侵蝕作用也越大。Sulfur dioxide, emitted by the industrial production and domestic burning fuel, and nitrogen oxides, emitted by the car exhausts and burning petrol are absorbed by the rain, forming larger raindrops, and falling on the ground. this is called acid rain. the main fuel in china is coal, which emits mainly sulfur dioxide, so the acid rain in china is sulfuric acid type of acid rain
工業生產民用生活燃燒煤炭排放出來的二氧化硫,燃燒石油以及汽車尾氣排放出來的氮氧化物,經過雲內成雨過程,即水氣凝結在硫酸根硝酸根等凝結核上,發生液相氧化反應,形成硫酸雨滴在下降過程中不斷合併吸附沖刷其它含酸雨滴和含酸氣體,形成較大雨滴,最後降落在地面上,形成了酸雨。For example, after the collapse of ditong dam in idaho, may 5, 1976, it was found that it was not impervious very well, the impervious curtain was built poorly. when the seepage went through the impervious curtain, the exit water from the pervious material of the downstream or the right side of dam through the foundation or certain line between the foundation and the dam caused contact scour and piping
如美國愛得華州提堂壩於1976年5月5日潰決,事後調查分析,因壩基透水性大,防滲帷幕施工質量差,滲流穿透帷幕,經地基或地基與壩的接觸面從壩體下游側透水料區逸出或從右壩肩繞滲經下游壩體逸出,出逸的水流引起了接觸沖刷和管涌,導致潰壩。Abstract : this paper summarizes a series of tests and inve stigations on general layout, const ruction diversion, flood disposal, navigation, river closure, form of gate opening s ection, pattern of energy dissipation and scouring under sluice carried out for f eilaixia proj ect by the scientific research institute of prwrc during the period from 1983 to 1998 and presents their major results
文摘:綜合闡述了珠江水利委員會科學研究所從1983 ? 1998年間對飛來峽水利樞紐的整體布置、施工導流、泄洪、通航、截流、閘孔斷面形式、閘下消能形式、閘下沖刷等所進行的一系列試驗和研究工作,並介紹主要試驗研究成果。Through the experiment, four engineering questions are answered : 1. whether the notching construction can be done on the wet beach of the downstream of the yellow river with the blasting method ; 2. whether the ditches can be created by the blasting and how long can be maintained ; 3. whether the ditches can be used to divert water and form a new river channel by water flushing ; 4. the impacts on the safety of the existing projects therein from the blasting concerned
通過試驗,回答了在黃河下游濕灘上能否進行爆破開槽施工;爆破能否形成溝槽,形成的溝槽可以保持多長時間;能否作為引槽引水,通過沖刷形成新河槽;爆破開槽對已有工程的安全影響等四方面的問題。Emgear gr grades are black, adhesive oil or gels compounded for extra tackiness to stay in place even in the presence of water
Emgear gr是一種黑色油脂或膠質物,黏度極高,具有超強的膠黏特性與耐水沖刷性,縱然在濕度極大或有水的環境下,亦能黏附在金屬表面。分享友人