Application of Non-Destructive Testing Technology for Long Exposed Anchor-bars
Conventional non-destructive testing of anchor-bars is based on the one-dimensional rod theory to quickly detect the quality of anchor-bars grouting.For long exposed anchor-bars(long free ends),multiple reflections of elastic waves at the exposed ends seriously affect the determination of anchor-bars length and grouting compactness.The interception method,auxiliary reinforcement method and auxiliary collar method are used to conduct on-site processing of long exposed anchor-bars,and the collected data are compared and ana-lyzed.The application results show that all three methods can solve the problem of non-destructive testing of long exposed anchor-bars.Under certain conditions,the auxiliary collar method has more advantages than the auxiliary reinforcement method and the interception method,and has certain promotion value.
long exposed anchor-barsnon-destructive testinggrouting quality
万方数据
维普
