给水度

利用电测井法测定地下水的给水度

Determination of the specific yield of groundwater using electrical logging method

给水度概念和广义给水度变化规律的初步分析

Specific Yield Concepts and Laws on the Generalized Specific Yield Variation

冰钓时尚CRAZY零度疯狂零通量方法原位测定给水度

The Determination of Specific Yield by Using the Method of Zero Flux Plain ( ZFP ) in Original Position

采样深度在0.5～9.1m范围内，每个样品进行10项测定：矿物组成、粒度分布、密度、总孔隙度、有效孔隙度、给水度、持水度、渗透系数、阳离子交换容量、含水量。

Sampling depth was from 0.5 to 9.1 m. For each sample ten items were determined : mineral composition , particle size distribution , density , porosity , effective porosity , specific retention and specific yield , permeability coefficient , positive ion exchange capacity and water content .

用煤矿开采排水法计算岩石给水度的探讨

Discussion on Calculating Rock Water Yield by Measuring Coal Mining Sewage

给水度是矿井水文地质中的重要参数。

Specific yield is one of the important parameters in mine hydrogeology .

黄土含水层给水度合理取值的研究

Study on rational determination of specific yield in aquifer of loess area

给水度与饱和差关系的初步研究

Study on the Relation between Specific Yield and Saturation Deficiency

含水层给水度的确定方法探讨

Exploring the determined method of specific yield of aquifer

给水度的变化机理及其试验分析

Variations mechanism and experimental analysis of specific yield

用高斯-牛顿法确定给水度

Application of Gauss-Newton Method to Determining Specific Yield

反演渗透系数和给水度。

Permeability coefficients and specific yields are inverted .

给水度测定方法研究

Study on Measurement Method of Specific Yield

确定浅部层状土给水度的一种新方法

A new method of determining the specific yield of layered soils in shallow layer under surface

辽河下游地区给水度计算方法的对比分析

Comparative Analysis for the Computational Approach of Water Yield in the Downstream District of Liao River

对水头摄动量影响的灵敏度，两个随机参数中渗透系数较大，给水度较小。

The sensitivity of infiltration coefficient to water table perturbations is higher than that of specific yield .

地下水位匀速下降条件下层状非均质多孔介质给水度的初步研究

On the variation of specific yield in response to uniform fall of water table in stratified porous media

根据非饱和带土层剖面含水率的变化确定给水度的方法研究

Study on Determination of storativity based on change of water content ratio along the profile of unsaturated zone

通过对给水度与饱和差的理论分析，明确了给水度与饱和差在基本概念上的差别；

Through theoretical analysis , the differences in the basic concept between specific yield and saturation deficiency are specified ;

文中提出的按稳定流态计算完全给水度的近似方法，可供使用中参考。

An approximate method is given for computing the specific yield under steady-state flow and it is available for reference in practice .

本文结合潜水动态试验，对几种计算方法进行分析，力求找到有代表性的给水度推求方法，提高水资源计算的精度。

This paper combines to the submerging dynamic trial to analyses and compare a few computational ways , and gains a reasonable means to improve its accuracy .

在给定渗透系数和给水度的变化范围基础上，以优化程序计算出来的水位值与实测值差值平方和最小作为目标函数值。

The minimum difference of the calculated and measured level is regarded as the objective function value based on the given range of permeability coefficients and specific yields .

给水度的计算很多，在水资源评价中，选择单一的方法难以保证精度。

There are many methods to calculate the yield of water in the assessment of water resources , but the any single approach is hard to assure the precision .

该公式考虑了渗透系数、升降速度、给水度、含水层厚度、水位变幅及降雨强度的影响。

The simplified formula takes into account of the factors , such as permeability coefficient , velocity of fluctuation , specific yield , aquifer thickness , water level amplitude variation and rainfall intensity .

在粗粒无压含水层给水度的求解中解析方法适用性的探讨确定浅部层状土给水度的一种新方法

On the validity of Boulton and Newman 's analytic model in the solution of specific yield of coarse-grained unconfined aquifer A NEW METHOD OF DETERMINING THE SPECIFIC YIELD OF LAYERED SOILS IN SHALLOW LAYER UNDER SURFACE

本文通过分析层状土释水机制，结合室内外实验，提出了一种确定层状土给水度的新方法。

According to the studies of the mechanism of water released from saturated layered soils , a new method is suggested to determine the specific yield of layered soils , based on experiments done in laboratory .

本文通过野外实践，总结了中子测水技术测定非饱和带持水度和给水度的方法，该方法直接、简单、准确，具有推广价值。

Through outdoor practice , the method measuring specific retention and specific yield in unsaturated zone using the neutron moisture meter is summarized , which is of directness , simpleness , accurateness and worthy of being popularized .

针对原有给水度实验仪不能直观反映地下水水位埋深及其降深对给水度影响的缺点，设计了能采用柱体法测定松散土体试样的给水度的实验仪。

As the old specific water yield apparatus can not put up visually the influence of water level and its decrease depth on the specific water yield of incompact soil sample , a new apparatus is designed .

新设计的给水度实验仪能直观地显示出地下水水位的变化，并能反映出初始地下水水位埋深及水位降深对给水度的影响，且操作简单，易于学生理解掌握。

The new apparatus not only can reflect the visual change of water level , the influence of water level and its decrease depth on the specific water yield , but also can be operated and understood easily by students .

结果表明，模型对含水层的给水度和模型边界的水力传导系数比较敏感，从而为傍河水源地的水文地质勘察工作布置提供科学依据，进而提高地下水资源评价结果的精度。

The results indicate that the model is relatively sensitive to the specific yield and the hydraulic conductance of general head boundary , which provides the scientific basis for the investigation of riverside well field and improves the precision of groundwater resource evaluation .