permeability coefficient

Based on equivalent flow assumption, the formulas for determining the hydraulic thickness and permeability coefficient of the effect zones are gained.

基于流量等效原理，推导了层面水力影响厚度及其渗透系数的计算公式。

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The reliability index for seepage stability would increase with increasing of slope ratio, crest width, thickness of clay stratum, width of foreland, thickness and width of counter weight blankets, and it would decreases with increasing of the permeability coefficient of sand and clay stratum.

堤防坡率、堤顶宽度、堤基粘土层厚度、前滩地宽度、堤后压盖厚度和宽度等变量的增大，将使堤基渗透稳定的可靠性指标增大；

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Aim To study the relationship between permeability coefficient and oil/ water partition coefficient of 17 alkaloidal drugs.

目的研究生物碱类药物经皮吸收系数与药物油/水分配系数的关系。

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The freezing and thawing resisting durability index, permeability resistance index, and control value for permeability coefficient is given.

给出了混凝土的抗冻融耐久性指标、抗渗能力指标、Cl-渗透系数控制值等。

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The model is fit for the selection of permeability coefficient of tailings fill dam and earth-rock dam.

该模型适用于尾矿堆积坝和土石坝的渗透系数取值。

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The permeability coefficient is the key factor to pumping and injection.

渗透系数大小是抽水和回灌难易程度的决定因素.

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And finally, the unsaturated permeability coefficient of gravelly soil is calculated by empirical formulas based on its SWCC and saturated permeability coefficient.

最后，根据土水特征曲线和饱和渗透系数，采用经验公式估算了其非饱和渗透系数。

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The application in the actual engineering of some mine shows that the stratum interspaces can be effectively filled with the clay-solidified grouts and the permeability coefficient of the stratum can be reduced by clay-solidified grouting technology and the acidity water is controlled and blocked up.

某矿山酸性污水库坝基防渗工程中帷幕注浆的实践表明，粘土固化注浆技术可以有效充填地层空隙，降低地层的渗透系数，从而实现对酸性污水的封堵和控制。

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The heat transfixion will be increased remarkably if the permeability coefficient ratio is too small.

过小的渗透系数比显著加快系统的热贯通.

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According to tests and analysis, the relationship of effective porosity and total porosity, permeability coefficient and porosity of porous concrete are adduced.

通过试验与分析，给出多孔混凝土有效空隙率和全空隙率，及渗透系数与空隙率的关系；

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Discussion on algorithm of permeability coefficient in hydrous layer by using logging parameter of apparent resistivity

利用视电阻率测井参数计算含水层渗透系数的探讨

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Cancel water vapour permeability coefficient.

取消了水蒸气渗透系数.

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Finite element modeling of back analysis of permeability coefficient of a tailing dam based on boring data

基于钻孔资料的某尾矿坝渗透系数反演分析有限元模型建立

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Slugging test method for determining permeability coefficient of unconfined aquifer

确定含水层渗透系数的冲击试验方法

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Aim at the problem, after searching free surface by equivalent permeability coefficient, we search it again through move the spill point again and again until solve free surface.

本文提出了求解无压渗流自由面的一种新方法，在采用等效渗透系数法搜索到自由面后，通过反复移动溢出点再次搜索自由面，最终达到准确求解自由面的目的。

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The paper describes the basic seepage theory and seepage analysis methods, and studies the factors to impacts of saturation line, such as the permeability coefficient ratio of each layer tailings in the tailing pond.

阐述了渗流基本理论及渗流分析方法，并通过有限元计算程序SEEP/W研究了尾矿库内各层尾砂渗透系数比等因素对浸润线的影响。

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Taking the anti-analysis of earthfill dam permeability coefficient as an example, a new anti-analysis method of hydraulic seepage flow for the BP nervous network of resultant two-dimensional seepage flow finite element method is proposed.

以土坝渗透系数反分析为实例，结合二维渗流有限元法的BP神经网络，提出了一种新的水工渗流反分析方法。

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Aiming at anti-slide performance and anti-seepage performance in pavement performance we measured the texture depth and water permeability coefficient. Finally, we researched on interlaminar shear strength between the micro surfacing and pavement using the determined gradation and the optimum emulsified asphalt content.

路用性能测试主要针对抗滑性能和防渗水性能进行了构造深度和渗水系数的测定。最后，采用确定的级配和最佳改性乳化沥青用量，研究微表处与原路面的层间剪切性能。

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Jinan has favorable hydro-geological conditions to carry out artificial recharge, namely fracture karts aquifer has a large permeability coefficient.

济南市具有非常利于人工回灌的水文地质条件，即裂隙岩溶含水层渗透系数大。

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The permeation flux was plotted against the applied pressure difference asas the pure water permeability coefficient.

但随着股的连续使用,在不同电解质溶液中测得的纯水透过系数逐渐减小.

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A porous TiAl intermetallics is fabricated using Ti and Al elemental powder by reactive sintering process, and the relationships between pressing pressure and porosity, maximum size as well as permeability coefficient are analysed.

以Ti、Al混合粉末为原料，通过反应烧结制备TiAl金属间化合物多孔过滤材料，分析压制压力对孔隙率、最大孔径及渗透系数的影响。

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By tests, the construction mix proportion were selected in order to satisfy the demands of the project on plastic concrete, such as strength, permeability coefficient and tangent modulus.

为满足工程要求的强度、弹性模量、渗透系数等指标，对塑性混凝土进行了配合比试验，选出了符合工程要求的施工配合比。

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It presents a specific laboratory research process and a mechanism analysis of the improvement of permeability of HSC by the way of recurring after fire. And it figures out the relationships between the chloridion permeability coefficient, water permeability coefficient and air permeability coefficient.

对通过高温后再养护手段来改善HSC高温后抗渗透性能进行了详细的试验研究与机理分析，给出了三种渗透系数的相互关系。

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It indicates the pore pressure was significantly affected by the permeability coefficient and the diffusion coefficient.

指出混凝土的渗透系数或扩散系数对于孔压有着重要影响.

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Determination of cohesive soil's permeability coefficient after thinking of initial hydraulic gradient

考虑起始水力坡降时粘性土渗透系数的确定

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A new apparatus was developed for effectively measuring the permeability coefficient and critical hydraulic gradient under seepage failure of the coarse-grained soil in laboratory tests.

针对目前还没有合适的室内试验仪器测试巨粒混合土的渗透系数和巨粒混合土发生渗透破坏时的临界水力梯度的现状，研制了粗颗粒土渗透系数及土体渗透变形测试仪。

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In respect of thermal transfixion, the permeability coefficient ratio determines the success or failure of GWHPPRSW.

从热贯通的角度来说, 渗透系数比是同井回灌地下水源热泵系统工程成败的关键.

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