Experimental study on behavior of secondary consolidation of soft soils considering upper soil layers' stress under repeated cyclic loading

被引：0

作者：

Chen Z. ^{[1
,2
,3
]}

Kong Q. ^{[4
]}

Zhu J. ^{[5
]}

Zhang S. ^{[6
]}

机构：

[1] Department of Resources and Urban-Rural Construction, Fuzhou University, Fuzhou

[2] Fujian Provincial Universities Engineering Research Center of Geological Engineering, Fuzhou

[3] Key Laboratory of Geohazard Prevention of Hilly Mountains, Ministry of Land and Resources, Fuzhou

[4] Fujian Yongqiang Geotechnical Engineering Co. Ltd., Longyan

[5] Key Laboratory of Ministry of Education for Geomechanics and Embankment Engineering, Hohai University, Nanjing

[6] Fujian Academy of Building Research, Fuzhou

来源：

Zhongnan Daxue Xuebao (Ziran Kexue Ban)/Journal of Central South University (Science and Technology) | 2016年 / 47卷 / 10期

基金：

中国国家自然科学基金;

关键词：

Consolidation test; Cyclic loading; Foundation engineering; Secondary consolidation coefficient; Soft soil;

D O I：

10.11817/j.issn.1672-7207.2016.10.030

中图分类号：

学科分类号：

摘要：

Based on one dimensional consolidation tests on soft soil samples, the influence of repeated cyclic loading on the secondary consolidation properties was investigated considering the upper soil layers' stress. The results show that during the loading cyclic stage, the secondary consolidation coefficient of soft soil Ca decreases with the increase of the largest preloading pressure. Ca also decreases significantly with the increase of the loading cycle number, while it decreases slowly after 20 cycles. The larger the cyclic loading is, the greater the Ca is, and it decreases more quickly. After 35 cycles, Ca increases with the increase of the reloading pressure p1, and there is a linear relationship between Ca and lg p1. Ca also increases with the increase of the largest preloading pressure and its lasting time. © 2016, Central South University Press. All right reserved.

引用

页码：3507 / 3514

页数：7

共 16 条

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