Design method of impact head for load-bearing capacity of&nbsp; pile foundation of anti-collision structure

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Journal of Vibration and Shock ›› 2021, Vol. 40 ›› Issue (23) : 202-207.

Design method of impact head for load-bearing capacity of pile foundation of anti-collision structure

XUN Zhou, LEI Zhengbao

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Abstract

In order to obtain accurate characteristic parameters of destructive impact from dynamic impact test, considering the impact of impact head of bogie on the test results, and referring to the design idea of reverse cam profile, a design method of inverse seeking the profile of impact head is proposed according to the path of post lodging. The finite element model of the dynamic impact test calibrated as a bogie impacting on a single post is used for simulation analysis, and it is verified that the impact head obtained by the inverse method can reflect the real bearing capacity of the pile foundation.

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Dynamic impact test / Bearing capacity / Pile foundation / Impact head / Reverse

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XUN Zhou, LEI Zhengbao. Design method of impact head for load-bearing capacity of pile foundation of anti-collision structure[J]. Journal of Vibration and Shock, 2021, 40(23): 202-207

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