压水试验求测渗透系数的射渗理论与方法

就压水试验术测渗透系数提出了射渗方法与计算式。以期在某些限定范围与方向的情况下，借助于不稳定流获得参数。对管端出流与管周出流两种压水作分析并导出理论计算式，依靠电测数据求渗透系数。最后给出射渗的ｑ－Ｔ－Ｒ方程，还与传统的稳定渗流求渗透系数方法简作对照。

Spouting permeation theory and method for determing permeability coefficient by pressure water test

In this paper the spouting permeation method and equations are presented for determing permeability coeffcient K by the way of pressure water test. The parameters can be obtained by means of non-steady flow under the condition of certain confined extent and direction.The theoretical formula is deduced by analyzing two types of pressure water test, with outlets one at the tube terminal and another at tube circumference.K is calculated from the records of electrical resistance.q-T-R curve is finally obtained and a contradistinction with K determined by means of traditional steady flow method is listed.