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Keywords: bolt model
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Proceedings Papers
Experimental Study on the Ultrasonic Guided Wave Evaluation Method of the Integrity of Grouting Bolts
Available to Purchase
Paper presented at the 3rd ISRM Young Scholars Symposium on Rock Mechanics, November 8–10, 2014
Paper Number: ISRM-YSS-2014-131
... is gradually reduced. When excited wave frequency is 50 kHz, gap value between c, and c1 is about 90 mfs, and it reaches 60 kHz, and the gap value is about 70 mfs. Figure shows a grouting bolt model with debond defect. L1 and L2 are defined the same as Figure 2, 5500 500) ' ., 4500 '' E 4000 i u 3500 0 j 3000...
