对混凝土在双轴压疲劳荷载作用下超声波波速的变化规律进行了试验研究。
This paper presents a study on the histories of ultrasonic velocity variations of concrete specimen during biaxial cyclic compressive loading tests.
基于松动圈的现场测试结果，研究声波波速沿孔深的变化规律以及爆破施工对于松动圈的影响。
The variation in acoustic velocity along the borehole and the influence of blasting on excavation damaged zone (EDZ) are studied based on the in-situ testing results.
以声波在各层介质中传播时波速的加权平均值作为构筑物的平均声波波速，计算出结构自振频率。
It treats the weighted average sound velocity in different mediums as the average sound velocity in the structure, thus the natural frequency of the structure is calculated.
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