Study on the Application of CT in the Grouting Effect Test of Super-long Piles

摘要

The wave velocity is the main physical parameter of ultrasonic wave CT test, it can distinguish the change of strength and density in reinforced section. The absorption coefficient is the main physical parameter of electromagnetic CT; it can determine the distribution of the reinforced section. CT was applied to evaluate the grouting effect of group piles in Su-Tong bridge .According to the results of coring and CT test, it is practicable to apply ultrasonic wave CT and electromagnetic CT synthetically to test the grouting effect of super long piles.