Abstract
The aim of this paper is to study the soil vibration response of a pile group induced by train traffic resting on the inclined bedrock condition. A series of model tests on the response of peak velocity were conducted in terms of inclined bedrock, loading frequency and short/long piles. The experimental results show that the peak velocity increased from the upslope to the downslope direction along the soil surface affected by the bedrock. The peak velocity increased with the increasing of loading frequency. In addition, as the loading frequency and horizontal distance increased, the difference of peak velocity along the circular direction in the soil surface would be more significant. The combined effects of long and short piles would induce a large difference of peak velocity on the pile side. However, the peak velocity on the concrete slab would not be affected. Furthermore, the peak velocity at the central point of the pile group was nearly the same to that on the side of the long pile and two times larger than that on the side of the short pile, which indicates the superposition of vibration wave of the pile group.
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Acknowledgements
The authors would like to acknowledge the funding from the National Natural Science Foundation of China (Grant Nos. 51622803, 51878103, 51908087), China Postdoctoral Science Foundation (2019M663439) and the Postdoctoral innovative talents support program, Chongqing.
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Ding, X., Qu, L., Yang, J. et al. Experimental study on the pile group-soil vibration induced by railway traffic under the inclined bedrock condition. Acta Geotech. 15, 3613–3620 (2020). https://doi.org/10.1007/s11440-020-00990-0
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DOI: https://doi.org/10.1007/s11440-020-00990-0