Full-scale model tests of load transfer in geogrid-reinforced and floating pile-supported embankments
文献类型：期刊论文
| 作者 | Zhang, Chonglei2,3 ; Su, Lijun2,3; Jiang, Guanlu1
|
| 刊名 | GEOTEXTILES AND GEOMEMBRANES
 |
| 出版日期 | 2022-10-01 |
| 卷号 | 50期号:5页码:896-909 |
| ISSN号 | 0266-1144 |
| 关键词 | Arching Field test Pile efficiency Geogrid-reinforced and pile -supported em bankments Load transfer Medium compressibility soil |
| DOI | 10.1016/j.geotexmem.2022.05.004 |
| 通讯作者 | Zhang, Chonglei(zhangchonglei@imde.ac.cn) |
| 英文摘要 | Well-designed field full-scale model tests were carried out to enhance the understanding of geogrid-reinforced and floating pile-supported (GRFPS) embankments constructed on medium compressibility soil (MCS). Two comparative test sections of GRFPS embankments with and without pile caps were built over silty clay with medium compressibility for field monitoring, over 25 months. The heavily instrumented embankments produced comprehensive high-quality data. Settlement, earth pressure, and geogrid strain measurements during embankment filling stages and the postconstruction placement stage were conducted. The influence of pile cap installation on the differential deformation and load transfer behaviour of the GRFPS embankment was evaluated. The results demonstrate the installation of pile caps can significantly improve the evolution characteristics of the stress increment ratio on the pile, facilitating a change in load sharing of the pile top from a "softening" feature to a "hardening" feature. The state of the "arching structure" heavily depends on the relative displacement. After the maximum arching is formed, although the subgrade load continuously increases, the arching enters the damage and recovery state, and the transfer of the overburden load increment is largely conducted by the tensioned membrane effect. |
| WOS关键词 | GEOSYNTHETIC REINFORCEMENT ; TRANSFER PLATFORM ; SILTY CLAY ; PERFORMANCE |
| 资助项目 | Sichuan Science and Technology Program[2021YFS0322] ; Second Tibetan Plateau Scientific Expedition and Research Program (STEP)[2021QZKK0202] ; Youth Innovation Promotion Association CAS[2019364] ; National Natural Science Foundation of China[51808542] ; Technological Research and Develop- ment Programs of the Ministry of Railways, China[2010G003 -F] |
| WOS研究方向 | Engineering ; Geology |
| 语种 | 英语 |
| 出版者 | ELSEVIER SCI LTD |
| WOS记录号 | WOS:000843834700002 |
| 资助机构 | Sichuan Science and Technology Program ; Second Tibetan Plateau Scientific Expedition and Research Program (STEP) ; Youth Innovation Promotion Association CAS ; National Natural Science Foundation of China ; Technological Research and Develop- ment Programs of the Ministry of Railways, China |
| 源URL | [http://ir.imde.ac.cn/handle/131551/56812]  |
| 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 |
| 通讯作者 | Zhang, Chonglei |
| 作者单位 | 1.Southwest Jiaotong Univ, Sch Civil Engn, Key Lab High Speed Railway Engn, Minist Educ, Chengdu 610031, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 3.Chinese Acad Sci, Inst Mt Hazards & Environm, Key Lab Mt Hazards & Earth Surface Proc, Chengdu 610041, Sichuan, Peoples R China |
| 推荐引用方式 GB/T 7714 | Zhang, Chonglei,Su, Lijun,Jiang, Guanlu. Full-scale model tests of load transfer in geogrid-reinforced and floating pile-supported embankments[J]. GEOTEXTILES AND GEOMEMBRANES,2022,50(5):896-909. |
| APA | Zhang, Chonglei,Su, Lijun,&Jiang, Guanlu.(2022).Full-scale model tests of load transfer in geogrid-reinforced and floating pile-supported embankments.GEOTEXTILES AND GEOMEMBRANES,50(5),896-909. |
| MLA | Zhang, Chonglei,et al."Full-scale model tests of load transfer in geogrid-reinforced and floating pile-supported embankments".GEOTEXTILES AND GEOMEMBRANES 50.5(2022):896-909. |
入库方式： OAI收割
来源：成都山地灾害与环境研究所
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