High Strain Dynamic Pile Testing The Curve Legitimate A Number Of Key Technology Research And Application

High strain dynamic signal matching as a pivotal technique in this dissertation, discussed and researched from the elementary theory of high strain the physical base , technical method and indicated the problems in dynamic signal matching, corrected matter, cured technique and practiced measure, and then had the correspond conclusions. The results which the contrast test between static state and high strain indicated that the corrected dynamic signal matching program was more scientific and perfect, high strain can satisfy the requirement in project piles testing.This dissertation mainly includes four parts:Part one : This part summarized the elementary theory of high strain ,it counted the carrying capacity of project piles by strength or velocity, suppose the project pile as steady system , linearity system, and exclusive flexibility piece. Describe stressing wave's effect rules, the model of pile-soil system.Part two : Analyzed the program of dynamic signal matching, expounded the pile wave analysis program by the method of characteristics, characteristic connection detruding, the problem of initial value or edge value, pile's calculating model and pile-soil system, indicated the lack of the traditional high strain dynamic signal matching program.Part three: In this part , corrected the dynamic signal matching program, inserted RSA, radiated damp and several new parameter in soil model, this news parameter caused the program more perfect.Part four: Apply the new matching program in pile testing, the new experimentation get more nicety result, the error of contrast test between static state and high strain under 10%, indicated the shortage that the parameter was not too thin to apply and exclusive piece, prospected the new develop way in pile high strain testing.