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Analysis of the mechanical effects and influencing factors of cut-fill interface within loess subgrade

文献类型：期刊论文

作者Bao, Han3,4,5; Song, Zhanting3; Lan, Hengxing1,2; Ma, Yangfan3; Yan, Changgen3; Liu, Shijie3
刊名ENGINEERING FAILURE ANALYSIS
出版日期2024-09-01
卷号163页码:22
关键词Subgrade engineering Cut-fill interface Loess Interface test Deformation and sliding Interface effect Influencing factors
ISSN号1350-6307
DOI10.1016/j.engfailanal.2024.108488
英文摘要Cut-fill interfaces within the loess subgrade tend to form potential failure surfaces, controlling the mechanical properties of cut-fill engineering. Focusing on the cut-fill interface, extensive laboratory tests in this research show the performance of interfacial mechanical properties under various test conditions, revealing interface effects and exploring the impact of different factors on these effects. The results indicate that the interface strengthens the friction angle of soil but weakens cohesion, especially impacting the cohesion, thereby reducing the shear strength of soil. The increase in dry density diminishes the enhancement effect on friction angle caused by the interface while amplifying the degradation effect on cohesion. Elevated water content has a weak influence on the enhancement effect of friction angle but diminishes the degradation effect of cohesion. Load doesn't change the impact of dry density on the interface effect but amplifies the impact of water content. The impact of various factors on interfacial shear strength manifests as follows: load > average dry density > water content. The interaction among these factors demonstrates average dry density + load > water content + load > average dry density + water content. The study indicates that the construction of loess subgrades based on the standard of maximum dry density and optimum water content may not align with the conditions required for achieving optimal stability at the cut-fill interface. These research findings reveal the crucial role of various factors in comprehensive impact of interfacial effect, offering essential support for ensuring the stability of cut-fill interfaces.
WOS关键词REINFORCED SOIL ; SLOPE ; LANDSLIDES
资助项目National Natural Science Foundation of China[41927806] ; National Natural Science Foundation of China[42041006] ; National Natural Science Foundation of China[42177142] ; Key Research and Development Program of Shaanxi[2023-YBSF-486] ; Fundamental Research Funds for the Central Universities, CHD[300102212213] ; Fundamental Research Funds for the Central Universities, CHD[300102293207]
WOS研究方向Engineering ; Materials Science
语种英语
WOS记录号WOS:001248597900001
出版者PERGAMON-ELSEVIER SCIENCE LTD
资助机构National Natural Science Foundation of China ; Key Research and Development Program of Shaanxi ; Fundamental Research Funds for the Central Universities, CHD
源URL[http://ir.igsnrr.ac.cn/handle/311030/206431]  
专题资源与环境信息系统国家重点实验室_外文论文
通讯作者Bao, Han; Song, Zhanting
作者单位1.Changan Univ, Sch Geol Engn & Geomat, Xian 710064, Peoples R China
2.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, State Key Lab Resources & Environm Informat Syst, Beijing 100101, Peoples R China
3.Changan Univ, Sch Highway, Xian 710064, Peoples R China
4.State Key Lab Loess Sci Inpreparat, Xian 710054, Peoples R China
5.Xian Key Lab Geotech Engn Green & Intelligent Tran, Xian 710064, Peoples R China
推荐引用方式
GB/T 7714		 Bao, Han,Song, Zhanting,Lan, Hengxing,et al. Analysis of the mechanical effects and influencing factors of cut-fill interface within loess subgrade[J]. ENGINEERING FAILURE ANALYSIS,2024,163:22.
APA Bao, Han,Song, Zhanting,Lan, Hengxing,Ma, Yangfan,Yan, Changgen,&Liu, Shijie.(2024).Analysis of the mechanical effects and influencing factors of cut-fill interface within loess subgrade.ENGINEERING FAILURE ANALYSIS,163,22.
MLA Bao, Han,et al."Analysis of the mechanical effects and influencing factors of cut-fill interface within loess subgrade".ENGINEERING FAILURE ANALYSIS 163(2024):22.

入库方式： OAI收割

来源：地理科学与资源研究所

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