Abstract:

In this paper a new test method for determining transmissibility of an aquifer in well is described. Using a test of step change of air pressure at well head, the transmissibility of an aquifer in Liaocheng city is determined to be 14.4m²/d. But it was determined by pumping test to be 43.6m²/d. Both the data have the same order of magnitude. This test is more simple and convenient, more economical and faster than the pumping test. It is also more reasonable to explain the micro-regime of groundwater and easier to be used in practice.

Key words: Transmissibility, Step pressure change, Well water, Aquifer, Cooper’s theory

摘要：

这种测试水井含水层导水系数的新方法是利用井口水面空气压力阶变试验,计算出聊城井含水层的导水系数为14.4m²/d,而通过抽水试验得出的导水系数为43.6m²/d,二者有相同的数量级,但新方法比抽水试验简单易行和经济快速,用它来解释地下水微动态更合理,容易推广应用。

关键词: 导水系数, 压力阶变, 水井, 含水层, 库珀理论