基于冲击回波法的预应力管道压浆密实性检测
渠广镇, 周广利, 张科超, 王彦伟

The detection of grouting compactness of pre-stressed ducts based on the impact-echo method
Guang-Zhen QU, Guang-Li ZHOU, Ke-Chao ZHANG, Yan-Wei WANG
图4 试验模型
a—模型尺寸;b—模型实体
Fig.4 The test model
a—the model size;b—model entity