海蝕作用 的英文怎麼說
中文拼音 [hǎishízuòyòng]
海蝕作用
英文
marine erosion-
A large amount of shoreline erosion and build-up occurs during the year due to storms and high winds.
由於暴風雨和大風的作用,終年都在發生大量的濱線浸蝕和海岸的塑造。Ocean wave action is chiefly responsible for the sculpturing of coastlines around the world.
世界各地海洋刻蝕現象主要是由海浪作用而形成的。This paper emphasizes the effect of the dissolution of aluminosilicate during diagenesis may provide more radiogenic strontium which would result in a high content of strontium in carbonate rocks. so we should avoid the vein of carbonate and select the samples with less terrigenous clastic, less grain content and lacking calcite cementation collected as analysis samples. the microcrystalline limestone and micro - to fine - crystalline dolomite are rather fairly whole rock samples
作者還強調了成巖過程中由長石等鋁硅酸鹽溶解提供殼源sr所造成的碳酸鹽礦物成巖蝕變可能表現為較高的sr含量;因此,在用全巖樣品進行旨在反映海水組成的各種分析時,應迴避碳酸鹽脈,選擇含陸源碎屑低、顆粒數量少、缺乏方解石膠結物的樣品,微晶灰巖或微?粉晶白雲巖是較為理想的全巖樣品。Through the dry and wet cycling experiment on unmarred beam and pre - cracked beam, the position of initial corrosion and influence of crack on the reinforcing bar corrosion are studied in this paper both the flexural bearing capacity performance and the material mechanical performance of the beams are studied on the test of full scale concrete beam a model of 3d fem is established to simulate the state of the actual full - sized rc beam and electronic accelerating test beams, computational results and test results are compared
通過對混凝土梁的干濕循環試驗,研究了在混凝土梁中的鋼筋初始銹蝕情況,以及不同寬度的裂縫對于鋼筋初始銹蝕的影響。通過對足尺銹蝕混凝土梁的試驗,研究了混凝土梁在海洋環境侵蝕作用下的材料性能的變化和抗彎承載能力的變化。The ongoing fluvial, marine and aeolian processes in the site have produced a variety of landforms, including coral reefs, long sandy beaches, coastal dunes, lake systems, swamps, and extensive reed and papyrus wetlands
不斷的河流,海洋和風的侵蝕作用使得該地呈現多樣地貌,包括珊瑚礁、漫長的沙灘、海岸沙丘、湖泊、沼澤、大片的蘆葦叢和紙草沼澤。Cyz - a self - priming centrifugal oil pump according to domestic and international to develop newest pump products that become after digesting, absorbing, improving about technical data by oneself, domestic blank, unique, extensively suitable for the oil depot, service station, oil ship, oil carrier, quay, oil truck, airport, send the petrol, kerosene, diesel oil, boat coal etc
型自吸式離心油泵是根據國內外有關技術資料經消化、吸收、改進后研製而成的最新泵類產品,國內空白獨一無二,該泵適用於石油行業、陸地油庫、油灌車的理想產品,並適合於作船底泵、消防泵和壓載泵及機器冷卻水循環等,分別輸送汽油、煤油、柴油、航煤等石油產品和海水、清水,介質溫度- 20 80 ,加輸送化工液體可改用耐腐蝕機械密封。In this paper, the erosional characteristics along the suizhong sarldy coast of the liaodong bay are analyzed by comparing nautical charts in different periods and analyzing remote sensing images and multi - year field monitoring data, and it is shown from the analysis results that the loose coastal sediments and intense coastal dynamic actions are the basic conditions for the recent coastal erosion, and the decrease in terrigenous material discharged into the sea, marine dynamic actions, coastal engineering structures and offshore sand recovery are the main affecting factors for the coastal retrogradation
摘要通過不同時期海圖對比、分析遙感圖像和多年現場監測資料,分析了遼東灣綏中沙質海岸侵蝕的特點,認為海岸組成物質鬆散與海岸動力作用強烈是本區現代海岸侵蝕的基本條件;陸源物質入海量減少、海動力作用、沿岸工程建築和海上采砂是其海岸蝕退的主要影響因素。Steel - reinforced concrete bridges are deteriorating from the corrosive effects of de - icing, marine salts, and environmental pollutants
鋼筋混凝土橋腐蝕破壞,系由於防冰鹽、海鹽和環境污染的作用。The variation of the sink of the yellow river estuary is the outcome of combined action of erosion and deposition mechanisms of the river estuary
摘要黃河口尾閭的變化是由黃河口海岸侵蝕機制與堆積機制共同作用的結果。Further research suggests that waves stir sediments and tidal currents transport the sediments, and waves and tidal current are combined into the dominant dynamic mechanism of coastal erosion, of which tidal residual current takes and transports sediment outward, thus it causes sediment to wane in the coast
進一步結合波、流動力的對應分析認為,波浪以掀沙為主,潮流以輸沙為主,波浪和潮流的聯合作用是飛雁灘海岸侵蝕的主要動力機制,其中潮流主要通過餘流攜沙外輸,造成近岸泥沙虧損。The six sea walls constructed in xiamen seacoast from 1953 to 1979 not only changed original nature environment, but also produced many application quaternary problems : tide - absorbing capacity reducing, and the bay silt up increasing ; the coast erode going into worse, and part of coasts collapsing and falling back ; intertidal zone mangrove disappearing, and ecosystem environment being destroyed ; sand beach in seashore running off severely, quantity of sea water falling, and marine products being reduced sharply
摘要1953 - 1979年廈門沿海修築的6條海堤不僅改變了原有的良好自然環境,而且產生了諸多應用第四紀問題:納潮量減少,港灣淤積加重;海岸侵蝕作用加劇,部分海岸崩塌後退;潮間帶紅樹林消失,生態環境遭到破壞;海濱沙灘流失嚴重,海水質量下降,水產養殖銳減。This paper presents an analysis method of mechanical behavior of aged concrete structures on elastic theory, and analyses the main causes of load bearing performance of concrete structures. the paper also illustrates some studies where structures exposed to the marine environment showed early deterioration and analyses the main causes of structural concrete deterioration, including concrete carbonization, corrosion mechanisms of concrete, and mechanisms of steel corrosion due to the penetration of chloride ions into the concrete. it shows that corrosion of the reinforcements is the main cause of structural concrete deterioration
本論文提出老化混凝土板的分層彈性理論,對混凝土結構的承載能力的影響進行分析;對浙江沿海混凝土結構及其構件的抗彎、抗剪、粘結性能以及結構的動力性能進行分析研究;提出了影響沿海混凝土結構耐久性的主要因素一混凝土的碳化作用,堿骨料反應,混凝土的腐蝕機理以及鋼筋混凝土中鋼筋銹蝕的影響因素。In structural engineering, hydraulic concrete is often used for the construction of a cyclical bear or fresh water, sea water or ice scour, erosion, and the knock - on effect on the permeability of concrete used hydraulic structures, it has special requirements and regulations
摘要在工程結構中,水工混凝土是用以修建經常或周期性的承受淡水、海水或冰塊的沖刷、侵蝕、滲透和撞擊作用的水工建築物所用的混凝土,其有特殊的要求和規定。This paper presents a method of probability analysis in order to develop the general design and analysis methods for problems of the embankment stability under random storm wave actions as well as with random properties of the embankment medium. the major purpose of this study is carry out modellings of ( 1 ) probability analysis for the problem of seepage stability of levee projects ; ( 2 ) probability analysis for the problem of erosion due to washout sediments from the embankment ; ( 3 ) numerical analysis for coastal evolution due to beach erosion under energy actions of storm wave
本文根據598084號年浙江省自然科學基金項目和g59901號國家教育部回國留學人員科研啟動基金項目的部分研究目標和研究內容的要求應用概率分析方法研究了在隨機風浪荷載作用下和築堤材料隨機性影響下防護堤壩抗滲流、抗沖刷穩定性的分析計算模型;用數值分析方法研究了在浪潮能量作用下岸灘侵蝕造成海岸演變問題的數學分析模型。The results improve our understanding of the utility of tl as an indicator of sedimentary environment and provide insight into what types of ocean sediments are amenable for study. the comparison of the 18o with the tl cycles indicates that the tl dose display the expected coupling relation with interglacial and glacial climate cycles
尤以位於東經90海嶺上的以遠洋沉積作用為主的md81349巖芯最為理想,陸源剝蝕產物在其沉積記錄中所佔比例較少,有孔蟲和超微化石為代表的遠洋成因的灰白色生物軟泥構成主要的沉積組分。Through analysis, we conclude that washing action of wave and flow is main power of evolvement of region of interest landform, structure lead to the fact that water area around shallow structure in cheng dao sea field has an increase about 0. 3m / a through actual measurement, water depth increase rate around foundation is 0. 25m / a, slope gradient of side slope averagely has a decrease of 5 % o a year, however marine hydropower wash rate through compute is 0. 2m / a on underwater bottom, the wash rate on structure foundation is 0. 35m / a
分析認為,浪流的沖刷作用是研究區水深地形演化的主要動力,構築物的存在,使埕島海域淺水區人工構築物周邊水域實測年水深增加幅度約0 . 3m a ,地基附近水深增加速率0 . 25m a ,邊坡坡度平均每年以5減緩,而計算得出的海洋水動力沖蝕速率在水下底坡為0 . 2m a ,在構築物地基沖蝕速率達0 . 35m a 。1. introduction for the pre - stressed concrete bridges in offshore and cold area, due to the corrosion effect of the corrosive agents in the environment to the structures, the safety of the bridge structures will decline with the service time, and this will affect the normal use of the bridge structures in the residual service time
第一章緒論處于沿海地區及冬季寒冷地區的預應力混凝土橋梁,由於所處環境或冬季所採用的除冰鹽中氯離子的腐蝕作剛,導致結構安全性的降低,使結構不能保證其在後續使用期內的正常使用,造成較大的經濟損失。Microbiologically influenced corrosion ( mic ) has been given severe attention in marine environment concerned of all kinds of structure constructions, such as pipeline, platform for petroleum, etc. in the paper, sulfate - reducing bacteria ( srb ) influenced corrosion was studied in seawater and seamud environments, concerned of stainless steel and low alloyed steels, respectively
隨著人們對海洋的廣泛開發和利用,海洋環境下金屬構築物的微生物腐蝕已引起了人們廣泛的關注。本文研究了海水和海泥環境中硫酸鹽還原菌( srb )影響的海洋用鋼的微生物腐蝕行為,探討了srb腐蝕的作用機制,並研究了海泥環境中srb對陰極保護電位的影響。Our largest national park south of alaska bigger than connecticut, is the largest national park in the lower 48 states, death valley is known for extremes : it is north america s driest and hottest spot with less than 2 inches of rainfall annually and a record high of 134 f, and has the lowest elevation in the western hemisphere - 282 feet below sea level
死谷是三千萬年前,因不同時期不同型態的斷層活動,地表下陷火山活動侵蝕作用而成。是美國除了阿拉斯加以外,最大的國家公園,長一百三十哩,寬十二哩,其中一大片的土地都在海平面下。荒蕪貧瘠,草木不生。This paper introduces the mechanism of corrosion by chloride and the protective methods for reinforcement in concrete structures in the ocean environment the concrete surface of the shantou gulf bridge is coated with the protective coatings according to the theory of corrosion protection
介紹海洋環境中氯化物作用下鋼筋混凝土結構中鋼筋的腐蝕機理、防腐措施和汕頭海灣大橋混凝土表面的防腐塗裝實踐分享友人