止土 的英文怎麼說

中文拼音 [zhǐ]
止土 英文
coefficient of earth pressure at rest, ko
  • : Ⅰ動詞1. (停止; 攔阻) stop; cut out 2. (截止) close; end Ⅱ副詞(僅; 只) only; just Ⅲ名詞(姓氏) a surname
  1. Cultivation of steep hillsides may be impractical because of the danger of erosion.

    在陡坡山地為防止土壤沖刷,果園不耕翻。
  2. Putting forward to the clear and definite concept and principia in proseminar ", the sustained land management evaluation in developing country ", and " the sustained land management ( using ) hi 21st century " point out : the land using is to combine the technique, policy with the social economic principle and the incorporated behavior of circumstance relation, in order to attain the keeping or increasing production or services at the same time, lowering the production risk, keeping nature resources potential and preventing the soil degeneration, making its have the economic vitality and accepted by the social

    地資源的可持續利用是可持續發展的基礎,沒有地資源的可持續利用就不可能有可持續發展。 1991年9月在泰國清邁舉行的「發展中國家持續地管理評價」研討會和1993年6月在加拿大舉行的「 21世紀持續地管理(利用) 」國際會議上提出了持續地利用的明確概念和基本原則:指出可持續地利用是將技術、政策和旨在使社會經濟原理與環境關系一體化行為結合起來,以便同時達到保持或提高生產或服務,降低生產風險,保持自然資源潛力和防止土壤退化,使其具有經濟活力和被社會所接受。
  3. To adopt well irrigation and well drainage, develop and utilize ground water resources of irrigated area can not only effectively reduce the ground water level and prevent secondary alkalization of the soil, but also provide timely irrigation to crops through well and canal complementary

    摘要灌區灌溉採用井灌井排,開發利用地下水資源,不但能有效降低地下水位,防止土壤次生鹽堿化,還可以通過井渠互補,使農作物得到適時灌溉。
  4. Abstract : on the basis of general principles of mechanics and critical state soil mechanics theory, a theoretical formula determining the coefficient of earth pressure at rest for cohesionless soil is derived by means of combining hypoplasticity with critical state soil mechanics. the formula has a simple form and is only related to the effective angle of internal friction of soil. there is a slight difference between the calculated value of the formula and that of other formulae. the further investigation of the formula shows that it can be used to determine the coefficient of earth pressure at rest of cohesionless soil

    文摘:在滿足一般力學原理和臨界狀態力學理論的基礎上,本文將亞塑性理論與臨界狀態力學相結合,推出了一個計算無粘性止土壓力系數的理論公式.該公式形式簡單,僅與的有效內摩擦角有關,其計算結果與常見的多個經驗公式的計算結果只有微小的差別.文中討論結果表明,該公式可用於確定無粘性的靜止土壓力系數
  5. Avoiding earthworks and foundations failures are key concerns to designers, engineers and practitioners

    止土方和地基破壞是設計員、工程師及從業人員的主要關注。
  6. Based on the above conclusions about anti - erosive vegetation structure, the paper expounds the implication of anti - erosive vegetation by pointing out the fault of its current definitions, and it is considered that anti - erosive vegetation should aim at protecting soil from erosion and fixing active sands in the eroded areas, ground space fully occupied by plants, in general with close structure, especially with outstanding coverage close to ground by organic matter ( litter and / or biomass )

    在上述結論的基礎上,本文通過指出現有防蝕植被定義的缺陷,論述了其涵義,認為防蝕植被應當是在侵蝕地區,以防止土壤侵蝕或以固沙為目的,植物充分佔據地面空間,一般具緊密結構,或者顯著具有有機體(枯落物以及生物量)貼地面覆蓋特徵的植被。
  7. Everglades mainly, situate in plain lake area on the middle and downstream reaches in changjiang river basin

    要全面規劃,統籌兼顧,做好中游平原湖區防汛抗旱、防澇排漬工作,保護濕地,防止土壤潛育化與沼澤化。
  8. Prevention of soil secondary salinization by turning upland cropland into paddy fields in depressions of the songneng plain

    松嫩平原低平易澇地旱改水種稻治澇防止土壤次生鹽漬化技術的研究
  9. At first, the relations between vegetation structures and their controlling soil erosion are discussed. the results show that magnitude of plant community coverage or canopy closure is n ' t certainly the adequate condition of an anti - erosive effective community because the community function of soil and water conservation is related to height of coverage layer as well as community coverage or canopy closure

    首先,討論了植被結構與其防止土壤侵蝕作用的關系,結果表明,植被蓋度或郁閉度的大小並不一定就是防蝕有效植被的充分條件,植被保持水功能還與覆蓋層的高度密切相關,覆蓋層高度大並不有利於植被保持水
  10. Kibaki was declared the winner of a presidential election that the opposition says was rigged

    這些議題包括憲法改革,討論終止土地以及財富分配不公平等問題的途徑。
  11. Halt soil erosion slow down

    止土壤流失
  12. Coefficient of earth pressur at rest

    止土壓力系數
  13. Earth pressure at rest

    止土壓力
  14. Earth pressue at rest

    止土壓力
  15. Abstract : the paper makes cliscussion on the problem of how to select the following computing indices : modulus, static earthpressre coefficient, strength from the excavation unloading projects computations. also it gives a large amount of data, examples and proofs

    文摘:該文對開挖卸荷工程計算中所得到的模量、靜止土壓力系數、強度等計算指標的選取問題進行探討,並給出了大量的數據例證。
  16. By simulating the excavation course of foundation pits and starting with the change of stress field, the regularities of remanent strength and static earth pressure of viscous soil mass under excavated plane are analyzed so that the influence depth due to soil mass excavation unloading may be determined

    摘要模擬基坑開挖過程,由應力場變化方面入手分析開挖面以下粘性體殘余強度和靜止土壓力的規律性,以期確定體開挖卸荷的影響深度。
  17. Through the analysis and calculation the conclusion can be made that during the process of the timbering of excavation, the magnitude of soil stress decreases with the increase of the displacement on the base of the still earth pressure, and the earth pressure distribution varies from the triangular distribution of the still earth pressure to other distribution with the displacement of the timbering structure. the thesis introduces the bedding coefficient in the horizontal direction varying with the soil displacement from soil - structure interaction mode, therefore calculation can be made to get more rational calculation result using elastic foundation finite element method which is the same to timbering structure both upwards and under excavation surface

    通過分析計算可以得出,在基坑支護過程中,壓力的大小在靜止土壓力值的基礎上隨支護結構向坑內側位移增大而減小;壓力的分佈由靜止土壓力的三角形分佈隨支護結構位移變化成其它分佈;由-結構共同作用模式引入隨體位移變化的水平向基床系數,使支護結構在開挖面以上部分同以下部分一樣,均可採用彈性地基有限元法進行計算,得出更為合理的計算結果。
  18. The authors suggest : the internal force ' s value is rational if the coefficient of lateral resistant force is one - forth to one - sixth of tests value, or the coefficient of lateral soil pressure is bigger than the coefficient of earth pressure at rest, or the lateral resistant force is computed together with the lateral earth pressure

    提出如將抗力系數取?實驗值1 / 4到1 / 6 ,或壓力系數稍高於靜止土壓力系數,將側向抗力和側向壓力綜合?慮,內力計算結果將是合理的。
  19. This paper, in allusion to damage of expansion joint of bridge, introduces a sort of new structure of jointless device - semi - integral abutment jointless bridge, and establishes model of general structure finite element of this bridge, and in details analyses its qualities of stress. the model considers the interaction of superstructure - substructure - soil. resistance of the soil behind abutment adopts still soil pressure and elastic resistance when the temperature rising, but active soil pressure when dropping. analysis of qualities stress of bridge includes of action of dead load, car load, temperature load of season character. taking an 100m length pc semi - integral abutment jointless bridge as instance, the paper establishes the model of plane frame by applying large common software - anasys, and analyses it by elastane and large deformation to imitate character of stress and deformation of general bridge. at the same time corresponding models of finite element of joint bridge and integral abutment bridge are established, and unique stress and performance of structure of semi - integral abutment jointless bridge are researched by comparing and analysing character of three different models under same loading, and controlling factor of design and constitution are generalized. in conclusion, for semi - integral abutment jointless bridge, on one hand shear, moment and deflection of the main beam and axis force of substructure are approximate with that of joint bridge, and integral stifmess of structure is increased and damage of expansion joint is eliminated, on the other hand there is axis force in main beam, shear and moment of substructure are bigger than that of joint bridge. in all this type of jointless bridge has rational stress and is worth of application and popularization

    半整體式橋臺無縫橋梁計算模型考慮了上部結構-下部結構-的共同作用;臺後抗力升溫時採用靜止土壓力加彈性抗力,降溫時採用主動壓力;分析橋梁受力性能時考慮了結構自重、車輛荷載和季節性溫變荷載的作用。以一座橋長100mpc半整體式橋臺無縫橋梁為實例,採用大型通用軟體ansys建立平面框架模型,進行彈性、大變形分析,模擬全橋受力和變形特點;同時建立與此對應的有伸縮縫橋梁和整體式橋臺無縫橋梁有限元模型,通過三種橋型同步加載對比分析,研究半整體式橋臺無縫橋梁獨特的受力特點和結構性能,總結其設計控制因素和構造要求。通過本文研究知:半整體式橋臺無縫橋梁主梁的剪力、彎矩、撓度和下部結構的軸力與梁式橋相近,結構整體剛度增大,併除去了伸縮縫病害;但主梁增加了軸力,下部結構剪力、彎矩較梁式橋大;綜合分析是一種受力合理有實踐和推廣價值的橋型。
  20. The job of agricultural drainage is to accelerate removing of the excessive water and salt in soil, control the underground water table at favourable depth, so that it can assure crops growing well and avoid salinization

    農田排降任務是加速排除壤中過量的水分及鹽分,控制地下水位在適宜的深度,保證作物的正常生長及防止土壤返鹽。
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