Abstract: In view of the complexity of quality inspection and evaluation for seepage prevention project,some unconventional testing methods for the quality inspection of dyke seepage prevention project are introduced. The method of borehole and pressure water-injection is proposed based on the characteristics of water pressure test and water injection test. In addition,non-destructive testing such as ground penetrating radar and surface wave methods are carried out. Through large amount of tests,the test equipment are improved and test methods are refined. Moreover,reliable results are obtained which verified the applicability of these testing methods.

Key words: seepage prevention, water pressure test, water injection test, surface wave, ground penetrating radar(GPR)