EPS Vibration Reduction Performance under Frozen Soil

Liu Qian; Yang Shihao; Zhang Zhenhu

doi:10.3969/j.issn.1007-2993.2019.05.010

Volume 33 Issue 5

Jul. 2021

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Liu Qian, Yang Shihao, Zhang Zhenhu. EPS Vibration Reduction Performance under Frozen Soil[J]. GEOTECHNICAL ENGINEERING TECHNIQUE, 2019, 33(5): 293-298. doi: 10.3969/j.issn.1007-2993.2019.05.010

Citation:

Liu Qian, Yang Shihao, Zhang Zhenhu. EPS Vibration Reduction Performance under Frozen Soil[J]. GEOTECHNICAL ENGINEERING TECHNIQUE, 2019, 33(5): 293-298. doi: 10.3969/j.issn.1007-2993.2019.05.010

Liu Qian, Yang Shihao, Zhang Zhenhu. EPS Vibration Reduction Performance under Frozen Soil[J]. GEOTECHNICAL ENGINEERING TECHNIQUE, 2019, 33(5): 293-298. doi: 10.3969/j.issn.1007-2993.2019.05.010

Citation:

Liu Qian, Yang Shihao, Zhang Zhenhu. EPS Vibration Reduction Performance under Frozen Soil[J]. GEOTECHNICAL ENGINEERING TECHNIQUE, 2019, 33(5): 293-298. doi: 10.3969/j.issn.1007-2993.2019.05.010

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EPS Vibration Reduction Performance under Frozen Soil

doi: 10.3969/j.issn.1007-2993.2019.05.010

1. School of Engineering, China University of Geosciences, Wuhan 430074, Hubei, China;
2. Construction Third Engineering Bureau Group Co., Ltd., General Contracting Company, Wuhan 430064, Hubei, China

Received Date: 2019-04-18
Available Online: 2021-07-06

Abstract

Abstract

Under the effect of the seismic load,pile foundation is prone to deformation and stress concentration at the interface between two soil layers.This phenomenon is particularly obvious at the interface between frozen soil and the other soil layers which can eventually lead to pile failure.The EPS material is effective on stress concentration and pressure-relief,and widely used as roadbed filler.The EPSmaterial was proposed to be the protective layer between pile and frozen soil in the depth of frozen soil.Shaking table modeling test and numerical simulation was conducted to evaluate the EPS material's vibration reduction performance.This effect of plastic material was also discussed in further numerical simulation.It shows that the EPS material can reduce the peak value of strain,shear force and pressure of pile in the frozen soil.The plastic material has stronger capacity to reduce them,and the effect becomes better as the cross-sectional area of material increases.
- seismic load,
- pile-soil interaction,
- frozen soil,
- vibration reduction,
- EPS