Lateral displacement of silty clay under cement-fly ash-gravel pile-supported embankments: Analytical consideration and field evidence | |
Zhang CL(张崇磊)1,2![]() | |
刊名 | Journal of Central South University of Technology
![]() |
2015 | |
卷号 | 22期号:4页码:1477-1489 |
关键词 | piled-supported embankment silty clay lateral displacement field test |
ISSN号 | 2095-2899 |
通讯作者 | JIANG Guan-lu |
英文摘要 | Based on back analysis of lateral displacements measured in situ by using the analytical solution, a useful method for estimating stress concentration ratio of geosynthetic-reinforced and pile-supported (GRPS) embankments was proposed. In order to validate the proposed method, a full-scale high-speed railway embankment (HSRE) with four instrumented subsections over medium compressibility silty clay was constructed in three stages. The soil profile, construction procedure and monitoring of settlements and lateral displacements of the four test sections were described. The field deformation analysis results show that 1) the combined reinforcement of CFG piles and geosynthetic layer perform well in terms of reducing lateral displacements; 2) the development of lateral displacements lags behind the increase of fill load, which can be attributed to the vertical load transfer mechanism of the pile foundation; and 3) pile length has a dominant effect on the stress distribution proportion between piles and surrounding soils. The comparison between predicted and experimental results suggests that the proposed analytical solution and the back analysis-based method are capable of reasonably estimating the lateral deformation and the stress concentration ratio, respectively, if the appropriate soil elastic modulus is chosen. |
收录类别 | SCI |
语种 | 英语 |
WOS记录号 | WOS:000352821500036 |
内容类型 | 期刊论文 |
源URL | [http://ir.imde.ac.cn/handle/131551/18496] ![]() |
专题 | 成都山地灾害与环境研究所_山地灾害与地表过程重点实验室 |
作者单位 | 1.Key Laboratory of High-speed Railway Engineering of Ministry of Education, School of Civil Engineering, Southwest Jiaotong University, Chengdu 610031, China 2.Faculty of Engineering and Built Environment, The University of Newcastle, Newcastle, NSW 2308, Australia 3.China Railway Eryuan Engineering Group Co. Ltd., Chengdu 610031, China |
推荐引用方式 GB/T 7714 | Zhang CL,JIANG Guan-lu,LIU Xian-feng,et al. Lateral displacement of silty clay under cement-fly ash-gravel pile-supported embankments: Analytical consideration and field evidence[J]. Journal of Central South University of Technology,2015,22(4):1477-1489. |
APA | Zhang CL,JIANG Guan-lu,LIU Xian-feng,&WANG Zhi-meng.(2015).Lateral displacement of silty clay under cement-fly ash-gravel pile-supported embankments: Analytical consideration and field evidence.Journal of Central South University of Technology,22(4),1477-1489. |
MLA | Zhang CL,et al."Lateral displacement of silty clay under cement-fly ash-gravel pile-supported embankments: Analytical consideration and field evidence".Journal of Central South University of Technology 22.4(2015):1477-1489. |
个性服务 |
查看访问统计 |
相关权益政策 |
暂无数据 |
收藏/分享 |
除非特别说明,本系统中所有内容都受版权保护,并保留所有权利。
修改评论