【摘要】 在高水头电站、抽水蓄能电站设计中 ,需要查明岩体在实际水头作用下的透水率、渗透特性。单回路双栓塞止水压水技术能适应各种口径、方向的钻孔 ,尤其是深钻孔和小口径钻孔中进行常规压水试验、高压压水试验、水力劈裂试验和工程要求的专项试验 ,具有止水效果好、操作简单、可在终孔后连续试验等优点。本文介绍了该技术及使用方法 ,给出了三个方面的试验结果 ,并简单分析了试验资料对工程设计的作用和意义 ,同时介绍了与单栓塞试验结果相互比较的资料。更多还原

【Abstract】 In design of pumped storage station or high water head hydro-power station,it is important to evaluate the rock infiltration properties under practical water pressure.The system of single-circuit and double-plug water-seal injection test,the high-pressure injection tests and other special engineering tests are used in different caliber and direction boreholes particulary in deep and narrow boreholes.It’s effective in water sealing and easy in operation,it may be continued to test at end drilling.In this paper,the system strucure and the application with the results of three type test are introduced,the data obtained by this system is compared with the result of one-plug test.更多还原