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Degradation mechanisms of soil arching under a localized cyclic surface loading

文献类型：期刊论文

作者Tao, Fengjuan1,4,5; Ye, Guanbao1,4; Zhang, Zhen1,4; Han, Jie3; Zhang, Rongjun5; Liu, Liu2
刊名CANADIAN GEOTECHNICAL JOURNAL
出版日期2024-07-04
页码17
关键词soil arching cyclic surface load localized surface load degradation mechanism
ISSN号0008-3674
DOI10.1139/cgj-2023-0150
英文摘要Soil arching causes stress redistribution in many earth structures, such as pile -supported embankments and buried structures. A localized cyclic surface load (e.g., footing and traffic load) would weaken the arching effect and cause structural safety at potential risk. This paper presents a series of trapdoor tests using transparent soil to investigate the degradation mechanisms of soil arching subjected to a localized cyclic surface load. The particle image velocimetry (PIV) technique was adopted to monitor the inner soil deformations during test. The test results show that soil arching under localized cyclic surface loading first degraded locally on the trapdoor center and then progressed from the center to the entire trapdoor. The soil arching degraded faster within a lower backfill, on a wider trapdoor, and under a higher load frequency of localized surface loading. Owing to the volumetric expansion during trapdoor movement, the average vertical stress with soil arching increased faster under localized surface loading than that without soil arching. After full degradation of soil arching, the stress increment and vertical displacement contours with and without arching effect gradually tended to be similar. Finally, an empirical method was proposed to predict the soil arching ratio under localized cyclic surface loading.
资助项目Shanghai Science and Technology Development Funds[22ZR1466600] ; National Natural Science Founda-tion of China (NSFC)[41972272] ; National Natural Science Founda-tion of China (NSFC)[41772281]
WOS研究方向Engineering ; Geology
语种英语
WOS记录号WOS:001263983000001
出版者CANADIAN SCIENCE PUBLISHING
源URL[http://119.78.100.198/handle/2S6PX9GI/41905]  
专题中科院武汉岩土力学所
通讯作者Zhang, Zhen
作者单位1.Tongji Univ, Key Lab Geotech & Underground Engn, Minist Educ, Shanghai 200092, Peoples R China
2.Chinese Acad Sci, Inst Rock & Soil Mech, State Key Lab Geomech & Geotech Engn, Wuhan 430071, Peoples R China
3.Univ Kansas, Dept Civil Environm & Architectural Engn, Lawrence, KS USA
4.Tongji Univ, Dept Geotech Engn, Shanghai 200092, Peoples R China
5.Wuhan Univ, Sch Civil Engn, Wuhan 430072, Peoples R China
推荐引用方式
GB/T 7714		 Tao, Fengjuan,Ye, Guanbao,Zhang, Zhen,et al. Degradation mechanisms of soil arching under a localized cyclic surface loading[J]. CANADIAN GEOTECHNICAL JOURNAL,2024:17.
APA Tao, Fengjuan,Ye, Guanbao,Zhang, Zhen,Han, Jie,Zhang, Rongjun,&Liu, Liu.(2024).Degradation mechanisms of soil arching under a localized cyclic surface loading.CANADIAN GEOTECHNICAL JOURNAL,17.
MLA Tao, Fengjuan,et al."Degradation mechanisms of soil arching under a localized cyclic surface loading".CANADIAN GEOTECHNICAL JOURNAL (2024):17.

入库方式： OAI收割

来源：武汉岩土力学研究所

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