unconfined aquifer

One of the two main types of aquifer is the unconfined aquifer.

非承压含水层是两种主要含水层之一.

Finite element analysis of time-dependant pumping test data in an unconfined aquifer

非承压和非稳定抽水试验资料的有限单元分析

application of artificial neural networks in unconfined aquifer parameter identification based on the boulton theory

BP神经网络在BOULTON法确定潜水含水层参数中的应用

By taking the stagnation action of flow into consideration, the analytical solutions for computing drawdown and pumping rate is derived under the conditions of homogeneous, isotropical unconfined aquifer without recharge and of fixed drawdown in the pumping well.

文中推导出了在均质各向同性无上、下补给、定降深抽水条件下，考虑滞流作用时的变边界井流问题水位降落曲线及井的出水量的解析公式。

The Sensitivity Analysis of the Groundwater Pollution Prevented by Unconfined Aquifer at Taiyuan Alluvial Plain

太原市冲积平原区包气带防止潜水污染的分析

The aquifer is unconfined locally and may be recharged.

含水层因为局部不承压而得到补给.

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

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

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