Technique Research on Strength Estimation of Pile Foundation Based of Model Analysis
In order to realize non-destructive testing of concrete strength of pouring stakes at the construction stages, the paper establishes two kinds of mathematics models between the concrete strength and the sound-speed through experiment on concrete test squares, model stakes and engineering piles ─ all of differently designed strength with method of ultrasonic. The concrete average strengths of the pouring piles were reckoned through engineering piles of practical testing and the errors were within the allowable range. So the validity of mathematics models was proved.
Z. J. Wang et al., "Technique Research on Strength Estimation of Pile Foundation Based of Model Analysis", Advanced Materials Research, Vols. 163-167, pp. 2727-2730, 2011