文献类型：期刊文献

英文题名：Primary yielding locus of cement-stabilized marine clay and its applications

作者：Cheng, Qiangqiang[1,2,3,4];Xiao, Huawen[4];Liu, Yong[4,5];Wang, Wei[6];Jia, Liang[7]

机构：[1]China Univ Min & Technol, Sch Resource & Earth Sci, Xuzhou, Jiangsu, Peoples R China;[2]Jiangsu Vocat Inst Architectural Technol, Sch Construct Engn, Xuzhou, Jiangsu, Peoples R China;[3]JiangSu Collaborat Innovat Ctr Bldg Energy Saving, Xuzhou, Jiangsu, Peoples R China;[4]Natl Univ Singapore, Dept Civil & Environm Engn, Block E1A,07-03,1,Engn Dr 2, Singapore 117576, Singapore;[5]Wuhan Univ, State Key Lab Water Resources & Hydropower Engn S, Wuhan, Hubei, Peoples R China;[6]Shaoxing Univ, Coll Civil Engn, Shaoxing 312000, Peoples R China;[7]Lanzhou Univ Technol, Coll Civil Engn, Lanzhou, Gansu, Peoples R China

年份：2019

卷号：37

期号：4

起止页码：488

外文期刊名：MARINE GEORESOURCES & GEOTECHNOLOGY

收录：SCI-EXPANDED(收录号：WOS:000472102500008)、、EI(收录号：20180504690390)、Scopus(收录号：2-s2.0-85041108879)、WOS

基金：This work is supported by the Jiangsu Overseas Research and Training Program for University Prominent Young and Middle-aged Teachers and Presidents, the Professorial & Doctorial Special Subject Funds for Jiangsu Vocational Institute of Architectural Technology (JYJBZX16-4), the Doctorial Special Subject Funds for JiangSu Collaborative Innovation Center for Building Energy Saving and Construction Technology (SJXTBS1707), the China Scholarship Council Project (201607910002) and the National Science Foundation of China (No. 41772311).

语种：英文

外文关键词：Cement stabilization; marine clay; primary yielding; stiffness; strength; yield locus

外文摘要：Strength and stiffness properties of materials are widely studied and used in civil engineering practice. However, most studies are based on unconfined conditions, which are different from real status of soil. This study investigated the primary yielding and yield locus for cement-stabilized marine clay. In this study, two types of cement-stabilized soils were studied through isotropic compression, triaxial drained shearing, unconfined compression, and bender element testing. Specimens with 20-50% of cement content and 7-90 days of curing period were used for the tests. Stress-strain behavior and primary yielding were evaluated, followed by construction of the primary yield locus. The characteristics of the primary yield locus and its development with curing time then were studied. The results showed that the properties of the primary yield locus were dependent on the type of stabilized soil, but were independent of the cement content and curing period. Thus, the approach provides a way to estimate the primary yield stress and drained stress path before primary yielding for cement-stabilized soil under confined condition. An empirical function was used to fit the primary yield locus. The primary isotropic yield stress was correlated to unconfined compressive strength or maximum shear modulus. Three indirect methods were proposed to predict the primary yield stress for cement-stabilized marine clay. The results showed that the primary yield stress can be estimated with reasonable accuracy.