非飽和量 的英文怎麼說
中文拼音 [fēibǎohéliáng]
非飽和量
英文
undercapacity- 非 : Ⅰ名詞1 (錯誤) mistake; wrong; errors 2 (指非洲) short for africa 3 (姓氏) a surname Ⅱ動詞1 ...
- 飽 : Ⅰ形容詞1 (吃足) have eaten one s fill; be full 2 (充實; 飽滿) full; plump Ⅱ副詞(充足; 充分)...
- 和 : 和動詞(在粉狀物中加液體攪拌或揉弄使有黏性) mix (powder) with water, etc. : 和點兒灰泥 prepare some plaster
- 量 : 量動1. (度量) measure 2. (估量) estimate; size up
- 飽和 : (在一定溫度壓力下, 溶液可含溶質的量達到最大限度, 不能再溶解, 泛指事物達到最高限度) saturation; saturated
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Regard - ing the surface runoff mechanism, liang and xie 1, 2 presented a new surface runoff parameterization which dynamically represents both the horton and dunne runoff generation mechanisms within within a model grid cell together with a consideration of the subgrid - scale het - erogeneity, which can be applied to not only humid regions but also droughty regions as well 3, 4. regard - ing the soil water movement, xie et al. 5 developed an unsaturated flow numerical model based on the finite element method, and xie et al. 6 presented another numerical model to compute soil moisture and water flow flux together by means of a mixed finite element method
在地表徑流方面,文獻1 3發展了一種同時考慮蓄滿超滲產流機制及次網格非均勻性的新的徑流機制模型,並用其改進了陸面模式vic variable infiltration capacity中的徑流計算,該模型既適用於濕潤地區也適用於乾旱地區4 .在土壤水模型方面,文獻5採用有限元質量集中法發展了非飽和土壤水流的數值模型,文獻6則採用混合有限元法建立了非飽和土壤水分含量和通量計算的數值模型( 3 ) the blockage of filtering bed and the thickening of the argitan can cause the change of hydrodynamic properties in the filtering bed, which leads to the decrease of water quantity
( 3 )濾床堵塞和泥膜增厚可能產生濾床中水動力特徵的改變,會產生非飽和流導致出水量的衰減。It is analyzed that the impacts of vegetation type on shear strength of unsaturated soil through direct shearing tests for unsaturated soil of different depth and various vegetation types which consist of hare soil, tanglehead grassplot, switch sorrel shrubbery and eucalyptus holt under natural moisture contents
摘要通過對裸地、扭黃茅草地、車桑子灌木林地和按樹林地四種不同植被類型、不同深度土壤在天然含水量情況下的直剪試驗,研究了植被類型對非飽和土抗剪強度的影響。The unsaturated equations may be written with moisture content and potential as the dependent variables.
可以把含水量和勢作為應變量來寫非飽和方程。In this paper, the influence of cycles of drying and wetting on strength and deformation are studied by means of routine direct shear apparatus, triaxial apparatus and light consolidation apparatus which include : the influence of force of constraint on strength, the total stress strength of expansive soils with different saturation degree, the influence of cycles of drying and wetting on the total stress strength, the relation between saturation degree and compression modulus and that between saturation degree and void ratio, the influence of cycles of drying and wetting on the effective stress strength, the relation between saturation degree and generalized suction
本文利用常規直剪儀、三軸儀以及輕便固結儀,分別對非飽和膨脹土的強度和變形特性以及干濕循環對強度和變形的影響進行了一系列的試驗研究。以飽和度、干濕循環次數為變量,分別探求了外力約束對膨脹土強度的影響,不同飽和度膨脹土的總應力強度特性,干濕循環對非飽和膨脹土總應力強度的影響,飽和度與壓縮模量以及孔隙比的關系,干濕循環對飽和膨脹土有效應力強度指標的影響,廣義吸力與飽和度的關系,建議了一組計算非飽和膨脹土變形及強度特性的經驗公式。By direct shear for and normal triaxial shear tests of non - saturated desert sand, the parper studied the effect of water content and dry density on the strength of the non - saturated desert sand, and set up the code of this sand. based on the plane strain test of non - saturated desert sand slope, the paper analysed the destruction way of the excavaion side during the construction by means of adding water, and brough forward a formule that calculates the allowable of excavation and pile hole
通過非飽和沙漠砂直剪試驗和常規三軸剪切試驗,研究了含水量和干密度對非飽和砂強度的影響,建立了這種砂的強度準則。通過非飽和沙漠砂邊坡室內平面應變試驗,分析了沙漠井場浸法施工中就基坑壁的破壞方式,推導出了基坑和樁孔容許開挖深度的計算公式。Using the convective - dispersive equation and based on labo ratory exp eriment, the hydrodynamic dispersion coefficient of unsaturated soil is determi n ed under different inial soil water content, different manner of water infiltra t ion and fertilizer supply
用非飽和土壤水動力彌散方程及其解析解,在室內試驗的基礎上,研究了非飽和土壤在不同初始含水量、不同入滲方式及不同加肥方式下的水動力彌散系數。Abstract : using the convective - dispersive equation and based on labo ratory exp eriment, the hydrodynamic dispersion coefficient of unsaturated soil is determi n ed under different inial soil water content, different manner of water infiltra t ion and fertilizer supply
文摘:用非飽和土壤水動力彌散方程及其解析解,在室內試驗的基礎上,研究了非飽和土壤在不同初始含水量、不同入滲方式及不同加肥方式下的水動力彌散系數。The rule about water flow in the unsaturated soil and the soil - water characteristic curve are described in this thesis in the first time step during the numerical simulation, the permeability coefficient is calculated according to the initial water content of the unsaturated soil, because of as shown in the soil - water characteristic curve has the hysteresis phenomenon
闡述了非飽和土中水流動的基本規律和土水特徵曲線。由於土水特徵曲線具有滯后的特點,提出了根據初始含水量來確定數值模擬初始時步非飽和土的滲透系數。On the basis of the theory about water potential in soils, a partial differential equation of water movement in unsaturated soils is derived, which chose volumetric water content as the control variable. the numerical solution of the equation using finite difference method is discussed in this paper, and the modality to calculate water movement in slope considering rain infiltration
基於非飽和土的土水勢理論,本文推導了以體積含水率為因變量的二維非飽和土的水分運動方程,並給出了用有限差分法來求解此偏微分方程的方法,得到了考慮降雨入滲影響的土坡水分運動的計算程式。Subsurface runoff is obviously closely related with soil water movement in the unsaturated soil zone and dynamic change of the groundwater table. there - fore, it is necessary to develop the subsurface runoff model with a physical base associated with recharge on the aquifer and total storage in the reservoir. also a soil model with a dynamic representation of the groundwater table makes it possible and reasonable to represent a more logical subsurface runoff parame - terization
地下徑流顯然與非飽和土壤層中的水分運動以及地下水位的動態變化密切相關,因而有必要發展考慮土壤含水量與潛水面science in china ser . d earth sciences 376中國科學d輯地球科學第36卷水分通量以及地下水位動態變化的土壤水模型相適應且具有物理意義的地下徑流模型;同時地下水位動態表示的土壤水模型也為發展更為合理的地下徑流模型創造了很好的條件Traditionally, the saturated zone is modeled as a simple lumped continuity equation :, dsitqsdt where t is time, s is the total storage in the reservoir, i is the spatially integrated volume of incoming wa - ter, and q is the discharge subsurface runoff which only depends on the total storage s. this kind of subsurface runoff model has many different parame - terizations 10 12, however it has a very common char - acteristic that the subsurface runoff is just a sin - gle - valued storage - discharge function
對于大尺度水文模型而言,目前常常採用的是集總式的地下徑流機制,其連續性方程一般可表示為d , dsitqst ? 1這里t是時間, s表示整個流域潛水面土壤層的飽和區域總的水分儲存量, i t表示t時刻土壤的非飽和區域向整個潛水面的水分補充量, q s表示僅依賴於水分儲存量s的地下徑流量量Longitudinal distribution law of sediment concentration in unsaturated and heterogeneous density current
異重流非飽和非均勻沙含沙量的沿程分佈規律Slope stability is analyzed according to rainfall intensities, prophase total rainfall, different soil slope gradients and vegetation by saturated - unsaturated seepage theory
摘要在飽和非飽和滲流理論基礎上,從降雨強度、前期降雨總量、不同的土坡坡度以及是否考慮植被護坡等方面對大氣降雨條件下土坡的穩定性進行了探討。Measuring unsaturated hydraulic characteristic parameters, such as capillary soil water, saturated soil moisture, field moisture, saturated conductivity etc., is not only expensive but also accuracy uncontrolled
測量非飽和帶水力特性參數:毛管上升水、飽和含水率、田間持水率、給水度、飽和滲透系數等,即費時、費力又難以保證試驗精度。In field study, the expenment on nitrogen transport and transformation in soils with different irrigation ( with both ground water and sewage effluent ) and fertilization levels has been conducted. with considenng the n - uptake, nitrification and demtrification processes, a model for describing no2 - - n transport and transformation in unsaturated soil has been applied. results show that, the n03 + - n accumulating in soil is contributed more by fertilization but lees by irrigation with sewage effluent, and the model can be used to simulate no3 - - n transport in soils
在室外進行了不同清污水灌水量與施肥條件下氮素遷移轉化試驗,同時進行了考慮根系吸收,硝化和反硝化的田間非飽和no _ 3 ~ - ? n遷移轉化模型的數值模擬,研究結果表明與施肥相比,污水灌溉對土壤中no _ 3 ~ - ? n累積的貢獻較小,所建立模型可用於模擬no _ 3 ~ - ? n在土壤中的遷移。The ratio of water vapor transfer contrasting with admixture transfer reveals that usually water vapor transfer can not be neglected
氣態水遷移量占混合遷移量的比例數值表明,通常非飽和土水分遷移中氣態水遷移是不可忽視的。With the equation for water vapor transfer in unsaturated soil the thesis deduces the equation for liquid water transfer, and then puts forward the coupled calculation method for water vapor and liquid water transfer together, and then build the difference calculation program to realize the coupled calculation under the one - dimension and constant - temperature condition, and put the program into practice with the experiment conditions, the calculation result tallies well with the experiment data, the facts proves the reliabilities of theory deduction and the feasibility of coupled calculation method
最後論文結合非飽和土氣態水遷移引起的含水量變化方程,推導了液態水遷移引起的含水量變化方程,提出了非飽和土考慮氣態水和液態水混合遷移的計算方法,編制差分計算程序實現了一維恆溫條件下液態水和氣態水的禍合計算,並將程序結合試驗條件進行了應用,計算結果與試驗結果較為吻合,表明了理論推導的可靠性和禍合計算思路的可行性。Based on the current research studies and needs in engineering, presented and discussed the following four fundamental problems of unsaturated seepage were : numerical modeling theories, modeling of rainfall infiltration, initial water content and hydraulic conductivity and its effect on the numerical simulation
摘要立足於非飽和滲流問題的研究現狀和應用需求,對4個常見的非飽和滲流基本問題進行了論述:非飽和滲流及其數值模擬理論;非飽和降雨入滲及其模擬中的問題;初始水分量及其考慮;土的非飽和滲透特性以及對滲流計算結果的影響。On the basis of the existing researches about the fully coupled thermal field and moisture movement in unsarurated loess soils, this paper gives the finite element module of thermal field after consideration of various natural elements such as wind speed, radiation, evaporation, and meanwhile put forwards the finite element module of moisture movement on saturated - unsaturated loess soils. furthermore, the paper also probes into the thermal and moisture transferring and coupled theory, and gives finite element module of fully coupled thermal field and moisture movement in unsarurated loess soils
在國內外有關非飽和土溫度場、水分遷移場及其耦合問題研究的基礎上,給出了考慮輻射、蒸發、風速等邊界條件的溫度場有限元方程,給出了計算飽和-非飽和土水分遷移場的有限元方程,對非飽和黃土中溫度場和水分遷移場傳輸機理及其耦合問題進行了初步的研究,給出了土體溫度場和水分遷移場之間耦合問題的有限元計算模式,分析了溫度和含水量之間的相互作用和影響。分享友人