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Characteristics Analysis of Load Caused by Punching Pile Construction of Highway Bridge Pile Foundation
American Journal of Civil Engineering
Volume 4, Issue 4, July 2016, Pages: 191-197
Received: Jul. 1, 2016; Published: Jul. 11, 2016
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Author
She Yanhua, School of Urban Construction, Yangtze University, Jing Zhou, China
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Abstract
The characteristics of impact loads caused by punching pile construction of highway bridge pile foundation and the propagation law of vibration wave in the soil were researched. Combined with site monitoring vibration signal which is generated by the bridge pile foundation construction of Zhang Shi Expressway across the Shaanxi Beijing pipeline, signal waveforms of the punching pile construction and blasting construction were analyzed contrastively. It expounded the characteristics of impact loads, and deduced the mathematical expressions of impact loads. On the basis of the analysis model, through the numerical simulation, the propagation law of vibration wave in the soil caused by the impacting point source excitation was revealed. Thus, it indicates that because of the buried pipeline, the local gradient of vibration wave velocity field increased in the area between the vibration source and the pipeline, but decreased in the far direction.
Keywords
Punching Pile Construction, Impact Loads, Vibration Wave, Propagation Law
To cite this article
She Yanhua, Characteristics Analysis of Load Caused by Punching Pile Construction of Highway Bridge Pile Foundation, American Journal of Civil Engineering. Vol. 4, No. 4, 2016, pp. 191-197. doi: 10.11648/j.ajce.20160404.19
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