介绍了用瞬态法测定岩石、混凝土渗透系数的原理和方法。对两种岩性、两种混凝土试件进行了不同应力水平下的渗透试验，对渗透特性作了初步分析，得到了渗透系数与应力关系的试验公式。根据试验结果结合工程地质资料，对广州抽水蓄能电站二期工程采用不同钢支管长度的厂房区作了考虑和不考虑渗流场作用的三维渗流耦合分析，得到了一些对设计有用的结果 The principle and method of measuring transiently the permeability coefficient of rock and concrete are introduced. The permeability tests of two kinds of lithology and two kinds of concrete specimens under different stress levels were carried out. The permeability characteristics were preliminarily analyzed, and the experimental formulas of the relationship between the permeability coefficient and stress were obtained. According to the test results combined with engineering geological data, the three-dimensional seepage coupling analysis considering the effect of seepage field was taken for the plant area with different steel branch lengths of Guangzhou Pumped Storage Power Station Phase II, and some useful results were obtained