Nondestructive evaluation of grout defect in rock bolt using electromagnetic waves

This study aims to inspect grout defects in rock bolts using electromagnetic (EM) waves. The experiments are conducted using one intact rock bolt and eight defective rock bolts with defect ratios (DR) of 10–50%. A two-conductor transmission line is configured using a pair of rock bolts to transmit E...

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Bibliographic Details
Main Authors: Jong-Sub Lee, Jung-Doung Yu
Format: Article
Language:English
Published: Elsevier 2024-03-01
Series:Developments in the Built Environment
Subjects:
Online Access:http://www.sciencedirect.com/science/article/pii/S2666165924000462