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Geological Engineering: Proceedings of the 1st International Conference (ICGE 2007)
Baosong Ma
Baosong Ma
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High strain dynamic load testing method based on stress wave theory has less expense and many other excellent attributes: providing much information such as single pile bearing capacity, pile structure integrity, the ultimate bearing capacity and the soil resistance distribution. This paper presents a new method to analyze the vertical load bearing performance of pile based on high strain dynamic load testing method. A forward and backward analytical model and its arithmetic used to solve the matter of hammer-pile-soil impulse response based on the theory of one-dimensional wave and continuous pole is put forward. In combining optimization with forward and backward analysis method, a program is developed not only to simulate the in-situ curves of high strain dynamic load testing and static load tests, but also to analyze the soil mechanical parameters around the pile by using backward analysis method with optimization technique utilizing measured high strain dynamic load testing information. This technique has been verified in large numbers of practical engineering projects with satisfactory results.

Theoretic Model
Curve Simulation Sample
Project Example Calculation
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