依据所建立的非线性模型，获得垂直入射纵波在非线性法向变形节理处传播的透射和反射系数的解析解。
Based on the established model, the analytic resolution of transmitted and reflected coefficients is obtained when the normal incident P-wave propagates to the nonlinear normal deformative joint.
介绍了两种常用的材料薄层超声表征方法———纵波脉冲回波法和兰姆波法。
This paper introduces two methods of ultrasonic characterization of thin layers: longitudinal pulse-echo and Lamb waves.
发射探头对岩块法向脉冲后产生纵波，同时在其垂直方向产生横波沿该平面的方向传播。
The transmitting probe produces a pulse which causes a P-wave in the normal direction of the plane and a S-wave in its shear direction.
本文介绍了两种目前常用的材料薄层超声表征方法——纵波脉冲回波法和兰姆波法。
This paper introduces two methods of ultrasonic characterization of thin layers: pulse-echo and Lamb waves.
用刚性圆形承压板法进行岩体变形试验，建立了岩体纵波波速与变形模量的拟合关系，用最小二乘回归法处理变形数据。
Then the fitting relationships between the longitudinal wave velocity of rock masses and deformation moduli are established. Method of least square regression is used for deformation data processing.
根据横观各向同性介质波动理论，结合波速、波幅的变化规律分析，通过纵波探头平测法，测试了有较大平面的岩块横波在层理面内的偏振波速。
According to the theory of wave crack, the variation rules of wave speed and amplitude, by use of the compressional-wave probe, the polarizing wave speed of rock with large plane is obtained.
根据横观各向同性介质波动理论，结合波速、波幅的变化规律分析，通过纵波探头平测法，测试了有较大平面的岩块横波在层理面内的偏振波速。
According to the theory of wave crack, the variation rules of wave speed and amplitude, by use of the compressional-wave probe, the polarizing wave speed of rock with large plane is obtained.
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