文献类型：期刊文献

英文题名：Compression Index versus Natural Water Content Relationshipsfor China's Coastal Soft Clays

作者：Gao, Yanbin[1];Chen, Zhongqing[2];Airey, David[3]

机构：[1]Tongji Univ, Sch Civil Engn, Dept Geotech Engn, Shanghai 200092, Peoples R China;[2]Shaoxing Univ, Sch Civil Engn, Key Lab Rock Mech & Geohazards Zhejiang Prov, Shaoxing 312000, Peoples R China;[3]Univ Sydney, Sch Civil Engn, Sydney, NSW 2006, Australia

年份：2019

卷号：23

期号：11

起止页码：4611

外文期刊名：KSCE JOURNAL OF CIVIL ENGINEERING

收录：SCI-EXPANDED(收录号：WOS:000496277600002)、、EI(收录号：20194307567282)、Scopus(收录号：2-s2.0-85073571440)、WOS

基金：This research was supported by the National Natural Science Foundation of China (Grant No. 41972273; No. 41772293; No. 40702051) and the China Scholarship Council (CSC NO. 201707910002). The supports from Zhejiang Public Interest Research Project (Grant No. 2016C33052) and Shaoxing Public Interest Research Projects (Grant No. 2015B70034) are also appreciated.

语种：英文

外文关键词：soft clay; compression index; natural water content; soil structure; correlations

外文摘要：A large number of C-c - w(n) (C-c is the compression index and w(n) is the natural water content) correlations have been proposed by researchers for different soft clays around the world, but comparisons of these correlations and reasons for differences between them are rarely reported. In this paper the C-c - w(n) relationships of marine soft clays from eight China's coastal cities are presented. It is found that the north coast clays have larger slope of the C-c - w(n) relationships (about 0.02) than the south coast clays (about 0.008). Comparisons with C-c - w(n) relationships for remoulded clays and structured natural clays reported by other researchers show the importance of accounting for soil structure, and the higher compressibility and higher apparent preconsolidation stresses of the north coast clays, in comparison to the south coast clays, are believed to be associated with chemical bonding and other post-depositional changes. Most of the reported C-c - w(n) correlations for natural soft clays from around the world have slopes of about 0.011, which are applicable to weakly structured clays. To develop a more widely applicable C-c - w(n) correlation, the effects of soil structure need to be incorporated.