承压板法变形试验根据承压板的刚度分为刚性承压板法和柔性承压板法，两种试验方法的适用范围在规程中均有相应的规定。对于完整和较完整类岩体而言，这两种试验方法均适用，但具体测试时究竟采用何种方法存在着争议。从两种试验方法的理论模型、现场实际测试和数值模拟入手进行研究，研究结果表明：完整坚硬类岩体适宜采用柔性承压板法。

According the stiffness of bearing plate, the deformation test of bearing plate method is divided into rigid bearing plate method and flexible bearing plate method.Adaptation range of the two tests are stipulated according to regulations. To complete and comparatively complete rock, the two tests may be adapted. It is controversial which kind of test method is adapted in testing complete and comparatively complete rock masses. The article does research in theory model, in-situ experiment and numerical simulation. The research results show that the flexible bearing plate method is suitable to test the deformation of complete and stiff rock mass.