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研究了锚杆锚固质量超声导波检测技术.根据理论得到的频散曲线,选取适合树脂锚杆锚固质量检测的高阶纵向模态和激励频率.试验中,直径22 mm,长2 800 mm的锚杆埋置于长度不断增加的环氧树脂层中,采用脉冲回波法在锚杆结构中接收不同锚固长度时高阶纵向模态的第一次端面回波.试验结果表明,随着树脂握裹长度的增加,高阶纵向模态的第一次端面回波峰峰值呈近似线性下降趋势.
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无损检测
ISSN: 1000-6656
Year: 2010
Issue: 10
Volume: 32
Page: 785-787,806
Cited Count:
WoS CC Cited Count: 0
SCOPUS Cited Count:
ESI Highly Cited Papers on the List: 0 Unfold All
WanFang Cited Count: 5
Chinese Cited Count:
30 Days PV: 13
Affiliated Colleges: