土工袋挡墙振动台模型试验研究

doi:10.13722/j.cnki.jrme.2017.0978

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Abstract

ll of soilbags. The results show that the retaining wall of soilbags dissipated a lot of vibration energy during the earthquake due to its relative flexibility. The acceleration amplification coefficient increases with the wall height，and decreases with the increasing input vibration amplitudes. The natural frequency and the spectral characteristics of the soilbags¢ retaining wall are similar to those of the backfill soil，so that the retaining wall can deform basically together with the backfill soil. The natural frequency of the retaining wall model decreases with the increasing input vibration amplitudes and the increasing vibration number. The peak dynamic earth pressure between the retaining wall and the backfill soil increases with the increasing input vibration amplitudes，and it approximately takes an“S-shape”distribution(or called double peaks) along the wall height. The cumulative lateral residual displacement of the retaining wall model of soilbags is small when subjected to multiple vibrations. The maximum ratio of the cumulative displacement to the wall height is about 0.29% at the input earthquake acceleration of 0.6 g，indicating the good seismic behavior of the retaining wall of soilbags.

Key words： soil mechanics retaining wall of soilbags seismic load dynamic characteristics shaking table test seismic behavior

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	Articles by authors
	LIU Sihong1
	JIA Fan1
	CHEN Xiaolin2
	WANG Jianlei1
	LIANG Yan1

Cite this article:

LIU Sihong1,JIA Fan1,CHEN Xiaolin2, et al. Shaking table model test on a retaining wall of soilbags[J]. , 2018, 37(S2): 4338-4347.

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https://rockmech.whrsm.ac.cn/EN/10.13722/j.cnki.jrme.2017.0978 OR https://rockmech.whrsm.ac.cn/EN/Y2018/V37/IS2/4338

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