浪蝕作用 的英文怎麼說
中文拼音 [làngshízuòyòng]
浪蝕作用
英文
marine erosion-
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。The waves eat into them only when they are charged with sand or pebbles.
只有挾帶沙礫和碎石的波浪，才起侵蝕作用。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。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。Because of long - time water erosion and weathering, the furface of the stone becomes uneven, looking like a rough sea
由於長年被水流沖蝕溶蝕及風化作用，使巖石表面凸凹不平，如同風吹過水面，捲起千層浪。A time - variant reliability formulation is presented in this paper to account for the effects of fatigue, corrosion and maintenance actions on the first yield reliability of midship section modulus. a probabilistic model for long - term distribution of wave - induced fatigue stress range is established. for the purpose of obtaining the performance of structure that stands random fatigue load, the concept of stress parameter and equivalent stress range are introduced
船舶在由波浪彎矩引起的交變應力作用下，船體構件焊接點處的微小裂紋逐漸擴展；同時，隨著船齡的增加，眾多結構構件遭受腐蝕的作用；從而使船體梁剖面模數減小，船體梁承載能力衰減，船舶結構的安全性將受到相當大的影響。A safety reliability evaluation method for embankment slope stability under random storm wave actions and erosion - damage effects is proposed, the genetic algorithm has been used as the modern optimization technique applied to the minimization of the reliability index and the safety factor of embankment slope stability
文中針對隨機風浪作用下侵蝕-損傷的堤壩邊坡穩定性提出一種安全可靠性評價方法，應用遺傳演算法尋找最危險滑動面對應的安全系數和最小可靠指標，並與傳統優化演算法進行比較，遺傳演算法尋優結果穩定不依賴于初值，明顯優于傳統優化演算法。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 。By means of prototype observation, analysis with materials and theories, and laboratory test, the author deeply analyzed the causes and procedure of canal cross section erosion, and obtained eight causes which resulted the canal deform including flow, seepage, runoff, collapse of bank, dry effect, human activity, wave flush, frozen, and then stressed to discuss the frozen process
本文通過原型觀測、資料分析、理論分析、室內試驗對北引渠道變形的成因和發生機理進行了較為深入的分析研究，給出了造成北引渠道變形的八大原因：流水引起的變形、滲透引起的沖刷、地表徑流引起的沖刷、滑坡變形、乾燥作用、人類和動物活動的影響、風浪引起的沖刷、凍融侵蝕，並著重闡述了凍融侵蝕的機理。分享友人