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Journal of Zhejiang University SCIENCE A 2005 Vol.6 No.2 P.141~147

http://doi.org/10.1631/jzus.2005.A0141


Study on one-dimensional consolidation of soil under cyclic loading and with varied compressibility


Author(s):  ZHUANG Ying-chun, XIE Kang-he

Affiliation(s):  Department of Civil Engineering, Zhejiang University, Hangzhou 310027, China

Corresponding email(s):   zdkhxie@zju.edu.cn

Key Words:  Cyclic loading, One-dimensional consolidation, Semi-analytical solution, Varied compressibility of soil


ZHUANG Ying-chun, XIE Kang-he. Study on one-dimensional consolidation of soil under cyclic loading and with varied compressibility[J]. Journal of Zhejiang University Science A, 2005, 6(2): 141~147.

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author="ZHUANG Ying-chun, XIE Kang-he",
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pages="141~147",
year="2005",
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doi="10.1631/jzus.2005.A0141"
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%A XIE Kang-he
%J Journal of Zhejiang University SCIENCE A
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%@ 1673-565X
%D 2005
%I Zhejiang University Press & Springer
%DOI 10.1631/jzus.2005.A0141

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T1 - Study on one-dimensional consolidation of soil under cyclic loading and with varied compressibility
A1 - ZHUANG Ying-chun
A1 - XIE Kang-he
J0 - Journal of Zhejiang University Science A
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SP - 141
EP - 147
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PB - Zhejiang University Press & Springer
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DOI - 10.1631/jzus.2005.A0141


Abstract: 
This paper presents a semi-analytical method to solve one dimensional consolidation problem by taking consideration of varied compressibility of soil under cyclic loading. In the method, soil stratum is divided equally into n layers while load and consolidation time are also divided into small parts and time intervals accordingly. The problem of one-dimensional consolidation of soil stratum under cyclic loading can then be dealt with at each time interval as one-dimensional linear consolidation of multi-layered soils under constant loading. The compression or rebounding of each soil layer can be judged by the effective stress of the layer. When the effective stress is larger than that in the last time interval, the soil layer is compressed, and when it is smaller, the soil layer rebounds. Thus, appropriate compressibility can be chosen and the consolidation of the layered system can be analyzed by the available analytical linear consolidation theory. Based on the semi-analytical method, a computer program was developed and the behavior of one-dimensional consolidation of soil with varied compressibility under cyclic loading was investigated, and compared with the available consolidation theory which takes no consideration of varied compressibility of soil under cyclic loading. The results showed that by taking the variable compressibility into account, the rate of consolidation of soil was greater than the one predicted by conventional consolidation theory.

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Reference

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