permeability of soil 中文意思是什麼

permeability of soil 解釋
土壤滲透性
  • permeability : n. 1. 透過性，可透性，滲透性；滲蝕度；【航空】（氣球氣體的）透出量。2. 【物理學】磁導率，磁導系數（＝magnetic permeability）。
  • of : OF ＝Old French 古法語。
  • soil : n 1 泥土，土壤；土質。2 土地，國土。3 滋生地，溫床。4 農業生活，務農。n 1 臟東西，污物，污穢，污...
  1. 2. the structure of purple soil is meliorated by sabaigrass. when contrast to bare land treatment and natural wild grassland treatment we knew that sabaigrass treatment and grass tree solid plating treatment reduced soil bulk density, enhanced soil capillary porosity, non - capillary porosity and porosity ratio, decreased soil sand grain content, enhanced soil clay grain and silt grain content so as to reduced the dispersal degree of soil, improved the aggregate capacity of soil, increased the amount of soil aggregate structure, meliorated the water permeability of soil, accelerated the form of good soil structure

    龍須草能改善紫色土的土壤結構龍須草純種植被和林草立體種植植被能不同程度地降低土壤容重，減少土壤砂粒含量，增加土壤的毛管孔隙度、非毛管孔隙度和孔隙比，以及增加粉粒含量，從而降低土壤分散度，提高土壤團聚性，增加土壤團粒結構數量，改善土壤的透水性，促進良好土壤結構的形成，最終提高土壤的蓄水保肥性能，增強土壤的抗蝕性和抗沖性。
  2. The permeability of a soil is important for calculations of underground flow.

    土的滲透性對于地下液流的計算很為重要。
  3. The major causes for dyke breaches are the strong permeability of soil at the dyke breaches, resulting in infiltration or piping firstly, and nonuniform settlement on water side and land side of the dyke due to a long - term soakage of the dyke, further leading to cracking and erosion, and finally breaching of the dyke

    潰口發生的主要原因是潰口處土壤組成透水性強，先發生散浸或管涌等險情，加上浸滄時間長，迎水面和背水面堤身沉陷不均勻，導致裂縫出現和沖刷的加劇也都促成潰口發生。
  4. It divides the main vegetation of the headwater region of huangpu river into 4 categories based on field survey and observation and methods of factor analysis and systematic cluster analysis and according to the degree of soil and water conservation function : deciduous trees and shrubs are category 1 which shows very strong soil and water conservation function ; tea plantation, grasslands and pine trees are category 2 which has stronger function ; the category 3 is moso bamboos and broadleaved evergreen trees which have stronger permeability and erodibility, but the permeable performance is not outstanding, the capacity of soil moisture storage common and soil and water conservation function moderate and ; the category 4 is uncovered land where the soil and water conservation function is very weak and its permeability, erodibility, erosive resistance and soil moisture storage capacity are all notably smaller than that of the other lands

    摘要在野外調查、實測的基礎上，採用因子分析、系統聚類分析的方法，根據土壤層水土保持功能的強弱，將黃浦江源區主要植被類型分為4類：落闊林、灌木林為第一類，表現出很強的水土保持功能；茶園、草地、松林為第二類，土壤水土保持功能較強；毛竹林、常綠闊葉林表現出較強的抗蝕性和抗沖性，但滲透性能並不突出，土壤貯水能力也一般，水土保持功能中等，為第三類；裸露地水土保持性能很差，單獨作為第四類，其滲透性、抗蝕性、抗沖性、土壤水庫容都顯著小於其他各樣地。
  5. Based on the lab orthogonal tests, using self - manufactured constant head permeameter, the effect of gravel content, void ratio and particle shape on the coefficient of permeability of soil - rock - mixture was studied

    本文採用室內正交實驗，利用自製的常水頭滲透儀，研究了礫石含量、孔隙比和顆粒形狀3個因素在不同水平下對土石混合體滲透系數的影響。
  6. Ploughing deeper and corn residues might promote formation of soil aggregated structure, decrease soil bulk density, relax solum, decrease soil porosity, raise soil permeability, improve soil structure and holding - water capability, create better soil biology condition for growth of crop, and coordinate water, fertilizer, air and heat etc. to prevent the fertility deterioration of the corn belt phaeozem and ameliorate soil, it is need to reform tillage and fertilizer application for the corn belt phaeozem in the central part of jilin

    針對吉林玉米帶黑土土壤退化現象，從黑土玉米的耕作制和施肥制的改革入手，並結合農村現有機械和技術水平，採用玉米「輕主重輔」三三耕作制和玉米「一穩二減三補」施肥技術，提出吉林玉米帶黑土土壤調控技術體系。
  7. Transportation of total nitrogen is meanly effected by precipitation, irrigation, rate of fertilizer application of agriculture, permeability of soil and thickness of unsaturated zone et al

    總氮的遷移主要受到大氣降水、灌溉水、農業施肥量、土壤的滲透性以及包氣帶厚度等因素的影響。
  8. In the hillslope, d ( ), c ( ) and k ( ) of soil water have high spatial correlation. d ( ), c ( ) and k ( ) are significant affected by soil water content, capillary pore and sand content bulk density and non - capillary pore aperture are significantly affected on permeability rate. correlation analysis indicates that it is significant correlate

    在坡面上，含水量、毛管孔除和砂粒含量對土壤水的擴散率、比水容量和導水率的影響較大;容重和非毛管孔隙對滲透率的影響較大，相關性檢驗達顯著和極顯著水平。
  9. Based on a thorough investigation of the engineering geological condition for the reservoir region of the huizhou pumped storage power station, the in - situ trial pit water injection test, boring water injection test, and water pressure test were performed to study the permeability of rock and soil mass

    摘要在對惠州抽水蓄能電站庫區工程地質條件進行詳細調查的基礎上，採用現場試坑注水和鉆孔注水、壓水試驗等方法了解巖土體的透水性。
  10. On the other hand for four main vegetation typies, which are picea crassifolia, forests sabina przewalskii forests, bushes and pastureland, whose soil permeability function was analyzed from angle of its physics, capacity of water, storing water in it. the results show as follow : permeability function of soil is controlled by quality of soil hole. the quality and quantity of soil hole under picea crassifolia forests are the best, and the permeability also is the best

    另外，從土壤物理性質、蓄水量、貯水量等角度對祁連山苔蘚雲杉林、祁連圓柏林、亞高山灌叢林、牧坡草地4種主要植被類型的土壤滲透功能進行分析，結果表明：土壤的滲透功能主要由土壤非毛管孔隙度的質和量決定的，苔蘚雲杉林土壤非毛管孔隙度的質和量最好，它的滲透也最好；雖然亞高山灌叢林的滲透功能次之，但由於它所處的位置和面積大，現實貯水量在祁連山四種主要植被類型中最大。
  11. The settlement depends on not only the depth of dewatering but also the permeability of soil

    地表沉降不僅取決于坑外降水深度和坑內外水頭差，還與土層的滲透性有關。
  12. By reducing the permeability of soil at the bottom of pit and selecting optimal dewatering depth, the settlement of ground surface can be well controlled

    採用降低坑底土層滲透性的措施和選擇最佳的降水深度能有效地控制坑外地表的沉降。
  13. The study shows that besides boundary conditions, the factors influencing the nonlinear consolidation behavior of soils are the compression index cc, the permeability index ck, the level and the rate of loading, and the thickness of soil, etc. in nonlinear consolidation, especially for layered soils, the average consolidation degree defined by settlement, us is greater than the one defined by effective stress, up, i. e., the rate of the development of settlement is greater than that of the dissipation of excess pore water pressure

    研究表明，除邊界條件外，影響軟土地基一維非線性固結性狀的主要因素是壓縮指數c _ c 、滲透指數c _ k 、荷載大小與加荷速率、土層厚度等。對于非線性固結，特別是成層地基，按沉降定義的平均固結度u _ s大於按有效應力定義的平均固結度u _ p ，即沉降發展速率要快于超靜孔壓消散的速率。
  14. With the method of the lie group transformation, the symmetry of the equation governing one dimensional finite strain consolidation is discussed and, from the point of the symmetry, the feasibility to obtain the analytical solution of these nonlinear partial differential equations is discussed. where - after exact or approximate analytical solutions focused on different consolidation problems are obtained, these including : under some assumptions of relations of the void ratio with coefficient of permeability and effective stress, the method of lie group transformation is applied to solve the non - linear partial differential equation of large strain consolidation of homogenous saturated clay soil in semi - infinite domain with the consideration of the material and geometrical nonlinearity during consolidation procession. the implicit exact solution without considering the effect of self - weight of soil is obtained

    運用lie群變換方法討論了一維大應變非線性固結方程的對稱性，以及在該對稱性的意義下求解這類非線性偏微分方程解析解答的可能性，並就大應變非線性固結問題的多種情況求得了其完整的或者近似的解析解答，具體包括：基於有效應力與孔隙比以及滲透系數與孔隙比之間的關系的一些假定，採用李群變換求解考慮材料非線性和幾何非線性的半無限均質土體大變形固結非線性偏微分方程，得到了一個不考慮自重固結的完全解析解。
  15. The self - weight of soil is an important factor affecting consolidation, and once it is taken into consideration, the consolidation becomes quicker and final settlement becomes larger. rheological property of soft soil contributes to delaying consolidation. the influences such as nonlinear variations of compressibility and permeability, rheological and layered properties of soil, self - weight and time - dependent loading are interacted each other and very complicated, and only they are all taken into consideration, can the consolidation behavior of soft soils be actually revealed

    研究表明：大、小應變固結理論的差異隨土壓縮性或荷載的增大而越趨明顯；土體自重是影響固結的一個重要因素，考慮自重要比不考慮自重固結快、最終沉降大；土的流變性增大將最終遲滯軟土地基的固結；土的壓縮性和滲透性的非線性變化、土的流變性、成層性、自重及變荷載等因素對固結的影響相互交織，錯綜復雜，在固結分析中對之綜合加以考慮，才能真實反映軟土的固結性狀。
  16. The indoors experimental results show the influence of soil density, moisture, permeability and restrain on the frozen - heave forces. from year ' s observation in - situ, the field data supports the relationship of foundation area, embedded depth and superimposed load with normal frozen - heave force

    通過野外現場的試驗的觀測，初步掌握了基礎法向凍脹力與基礎面積、基礎埋深、附加荷載等因素之間的關系以及平板基礎所受凍脹上抬力各組成部分之間的相互影響規律。
  17. Based on the new model, the influences caused by soil structure, apparent preconsolidation pressure, the re - compression index, the coefficient of secondary compression, the magnitude of loading, the coefficient of permeability, the rate of loading, the thickness of clay, the self - weight, the layered property etc, in the process consolidation of soil with structure, are analyzed in detail. the difference between the present model and yin & graham model was also given

    基於本文新建模型，分析論述土結構性、表觀前期固結壓力、再壓縮系數、次固結系數、荷載增量大小、滲透系數、加荷速率、固結層厚度、自重應力隨深度變化和土體成層性等對土固結的影響，比較本文模型與yin & graham模型的異同，闡述土結構性和流變性對軟土固結壓縮行為的影響。
  18. The magnitude of load, the pre - consolidation pressure of soil, as well as the variations of compressibility and permeability of soil, all has significant influence on the consolidation behavior

    荷載的大小、先期固結壓力、土體壓縮性和滲透性的變化等對地基的固結性狀均有明顯影響。
  19. By orthogonal tests, the influence of three factors on the coefficient of permeability of soil - rock - mixture, the significance of different factors was determined

    通過正交試驗確定了3種因素對土石混合體滲透系數的影響順序及各因素的顯著性水平。
  20. A formula for calculating the coefficient of permeability of soil - rock - mixture was proposed and was verified by the experimental results, thus a concise and useful computational tool for the theoretical calculation of coefficient permeability of soil - rock - mixture was offered

    提出了土石混合體滲透系數計算公式，並通過試驗結果驗證了計算公式的正確性，為土石混合體滲透系數的理論計算提供了一個簡明有用的計算工具。
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