Application And Analysis Of Measured Curve Matching In High Strain Dynamic Testing Pile

High strain dynamic testing pile is a method that high-energy dynamic impact load replace static maintenance load to make pile surrounding soil resistance fully play, and derive single pile bearing limit through fluctuations equations. Such method has matured now, but is still not perfect. The research and analysis in-depth, is of theoretical and applied value.Focusing on measured curve matching of high strain dynamic testing pile, the basic principles have been described.Grade and give a summary chart to the typical measured curve that caring resistance information and impedance values.Use of engineering examples, contrast and analysis another current analytical methods -CASE law, and identify its certification of the applicable conditions. Study and discuss the basic principles, calculation method and the existence problems of parameters set up of measured curve matching. Point out the deficiencies of the measured curve matching program and make conect conesponding lending the method to be more perfect. By using large numbers of engineering example of static and dynamic contrasting, summarizes the scope and role of selected parameters of several typical pile foundations fit.The main content is divided into four parts. Part I provides an overview of the foundation of the basic principles of high strain dynamic testing pile; it is the methods that use of a high-energy dynamic load to establish single pile bearing limits. Typical measured curves have been analyzed and apply conditionality of Case law has been point out.In Part II, the measured curve matching has been analyzed; piles and soil calculation models have been expounded. The overall average wave velocity and the loneness of piles determined by piles-reflection have been analyzed also; And finally the calculation formula have been derived and elaborated.