Numerical Study on Shear Behavior of Geocell-reinforced Layer Based on Large-scale Direct Shear Tests
文献类型：期刊论文
| 作者 | Zhao, Yang1; Lu, Zheng1,2; Liu, Jie3; Yao, Hailin1 |
| 刊名 | KSCE JOURNAL OF CIVIL ENGINEERING
 |
| 出版日期 | 2024-03-20 |
| 页码 | 12 |
| 关键词 | Geosynthetics Geocell Large-scale direct shear test FLAC(3D) Geocell reinforced layer |
| ISSN号 | 1226-7988 |
| DOI | 10.1007/s12205-024-2458-5 |
| 英文摘要 | Although geocells have been extensively used to improve the performance of road embankments and slopes, their positive effect on shear strength under various shear failure scenarios has not been sufficiently emphasized. This paper attempts to fill this research gap through a series of numerical studies and presents ongoing research. First, FLAC(3D) is adopted to simulate two large-scale direct shear tests, and the outcomes are compared with laboratory test results reported in the literature. Then, the layout of the geocell in the shear box, the angle between the geocell layer and the shear plane, and the aspect ratio of the geocells are investigated to analyze the effects of each factor on the shear strength of the geocell-reinforced layer. The findings confirm that the geocell-reinforced layer exhibits substantial anisotropy, which is caused by variations in the shear failure plane. When the shear plane is near the center of the geocell, or the angle between the shear plane and the horizontal plane is less than 45 degrees, the geocells can provide higher shear strength. The shear strength of the geocell-reinforced layer can also be improved by increasing the aspect ratio or geocell height, where the apparent cohesiveness and friction angle are increased by 156% and 13%, respectively, over a range of aspect ratios from 0.394 to 1.575. |
| 资助项目 | National Natural Science Foundation of China[42077262] ; National Natural Science Foundation of China[42077261] ; National Natural Science Foundation of China[41972294] ; Sichuan Transportation Science and Technology Project[KJFZ-2022Y-022] ; The 2022 Annual Transportation Industry Science and Technology Project[2022-ZD-017] ; The 2022 Annual Transportation Industry Science and Technology Project[2022-ZD-018] ; Research Fund Project of Xinjiang Transportation Planning Survey and Design Institute Co., Ltd.[KY2022042504] ; Research Fund Project of Xinjiang Transportation Planning Survey and Design Institute Co., Ltd.[KY2022042501] |
| WOS研究方向 | Engineering |
| 语种 | 英语 |
| WOS记录号 | WOS:001190182600003 |
| 出版者 | KOREAN SOCIETY OF CIVIL ENGINEERS-KSCE |
| 源URL | [http://119.78.100.198/handle/2S6PX9GI/40925]  |
| 专题 | 中科院武汉岩土力学所 |
| 通讯作者 | Lu, Zheng |
| 作者单位 | 1.Chinese Acad Sci, Inst Rock & Soil Mech, State Key Lab Geomech & Geotech Engn, Wuhan 430071, Peoples R China 2.Hubei Key Lab Geoenvironm Engn, Wuhan 430071, Peoples R China 3.Xinjiang Transport Planning Survey & Design Inst C, Urumqi 830006, Peoples R China |
| 推荐引用方式 GB/T 7714 | Zhao, Yang,Lu, Zheng,Liu, Jie,et al. Numerical Study on Shear Behavior of Geocell-reinforced Layer Based on Large-scale Direct Shear Tests[J]. KSCE JOURNAL OF CIVIL ENGINEERING,2024:12. |
| APA | Zhao, Yang,Lu, Zheng,Liu, Jie,&Yao, Hailin.(2024).Numerical Study on Shear Behavior of Geocell-reinforced Layer Based on Large-scale Direct Shear Tests.KSCE JOURNAL OF CIVIL ENGINEERING,12. |
| MLA | Zhao, Yang,et al."Numerical Study on Shear Behavior of Geocell-reinforced Layer Based on Large-scale Direct Shear Tests".KSCE JOURNAL OF CIVIL ENGINEERING (2024):12. |
入库方式： OAI收割
来源：武汉岩土力学研究所
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