文献类型：期刊文献

英文题名：EXPERIMENTAL AND MATHEMATICAL INVESTIGATIONS ON UNCONFINED COMPRESSIVE BEHAVIOUR OF COSTAL SOFT SOIL UNDER COMPLICATED FREEZING PROCESSES

作者：Wang, Wei[1];Li, Na[1];Zhang, Fang[1];Zhou, Aizhao[2];Chi, Snow[3]

机构：[1]Shaoxing Univ, Sch Civil Engn, Shaoxing, Peoples R China;[2]Jiangsu Univ Sci & Technol, Sch Architectural & Civil Engn, Zhenjiang, Peoples R China;[3]Univ Melbourne, Melbourne Sch Design, Melbourne, Vic 3010, Australia

年份：2016

卷号：23

期号：4

起止页码：112

外文期刊名：POLISH MARITIME RESEARCH

收录：SCI-EXPANDED(收录号：WOS:000393683700013)、、EI(收录号：20170503313633)、Scopus(收录号：2-s2.0-85010992320)、WOS

基金：The authors thank the reviewers who gave a through and careful reading to the original manuscript. Their comments are greatly appreciated and have help to improve the quality of this paper. This work is supported in part by the National Natural Science Foundation of China (NO. 41202222), and by the Ministry of Housing and Urban-Rural Development of China (NO. 2012-k3-4, NO. 2015-k3-020, NO. 2015-k4-003). Some Laboratory tests were carried out by Li-sha Ma, Qiao-yuan Chi, Miao Li, Peng Jin and Yi-qi Tu.

语种：英文

外文关键词：costal soft soil; stress-strain curve model; unconfined compressive behavior; freezing-thawing circle

外文摘要：In order to properly understand the effect of freezing-thawing circle (FTC) to mechanical behavior of costal soft soil (CSS), unconfined compressive test is conducted. Six kind FTC times are designed from zero to five. The tested data show that: (1) unconfined compressive strength of CCS decreases nonlinearly with more FTC, and the strength after five FTC times becomes about 22% of its original strength without any freezing-thawing experience; (2) stress-strain curves of all unconfined compressive samples can be well fitted by three-parameter hyperbolic model; (3) and relationship between two parameters and FTC times can be fitted by exponent function, while another parameter can be considered as 0.95. Consequently, one composite hyperbolic-exponent empirical formula is established in order to describe freezing-thawing-dependent stress-strain behavior of CSS. Finally, good agreements have been found between tested dada and simulated results.