According to the energy characteristics of acousticwave, the bolt bonding integrity can be classified by the means of impedance analysis.
利用声波的能量特征和波阻抗分析方法，对锚固质量进行初步分级；
2
This paper, from the Angle or mathematics, makes analysis and discussion on the feasibility of acousticwave detection of crack depth in concrete, and provides practical engineering examples.
本文仅就声波探查砼裂缝深度的可行性从数学角度进行了分析与论证，并给出了工程实例。
3
This paper introduces the rock acousticwave test in protective layer of dam foundation in Fenhe Secondary Reservoir and conducts more detailed analysis on the test result.