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讨论了超声波法在半刚性材料、水泥材料及聚合物改性水泥材料等公路工程土工材料研究中的应用，发现超声波法除可测定材料的动弹性模量等力学性能外，还可利用波形和波速等研究材料破坏断裂的过程及破坏情况；超声波法测定材料的动弹性模量与静力试验测定的弹性模量等静力学参数存在一定的关系。
The application of ultrasonic method in the study of geotechnical materials such as semi-rigid materials, cement materials and polymer-modified cement materials is discussed. It is found that the ultrasonic method can not only measure the mechanical properties such as the dynamic elastic modulus of materials, but also use the waveform and Wave velocity and other materials to study the process of failure of the fracture and destruction of materials; ultrasonic dynamic analysis of the material elastic modulus and static test elastic modulus isostatics parameters there is a certain relationship.