Model tests of single pile vertical cyclic loading in calcareous sand

doi:10.1080/1064119X.2020.1744048

	Model tests of single pile vertical cyclic loading in calcareous sand
	Wang, Shuai 3; Lei, Xuewen 3; Meng, Qingshan 1,2; Xu, Jieli 3; Wang, Mingzhao 3; Guo, Wei 3
刊名	MARINE GEORESOURCES & GEOTECHNOLOGY
	2020-03-26
页码	12
关键词	Calcareous sand model tests bearing capacity accumulated settlement single pile cyclic loading
ISSN号	1064-119X
DOI	10.1080/1064119X.2020.1744048
英文摘要	Pile foundations in calcareous sand are often applied to bear vertical cyclic loads. Model tests of a single pile bearing vertical cyclic loads were performed in calcareous sand, and the accumulated settlement and bearing capacity were measured via sensors using a self-designed experimental device. The influences of the dynamic load and number of cycles on the accumulated settlement and bearing capacity of the pile were analyzed. The results revealed that the accumulated settlement of the pile increased with the number of cycles, it was categorized as either stable, progressive, or destructive. The "threshold effect" was observed once a critical number of cycles had been achieved, the particles breakage hindering the settlement tendency lead to the accumulated settlement rate of the pile gradually decreased and stabilized. During cyclic loading, the proportions of the upper load shared by the pile end and side constantly changed, the pile-side frictional resistance gradually decreased, while the average resistance of pile end slowly increased. After cyclic loading, the bearing capacity of the pile was improved slightly, but the pile-side frictional resistance was greatly reduced, two formulas were presented. The test results can be used for the design of pile foundations in calcareous sand.
资助项目	Strategic Priority Research Program of the Chinese Academy of Sciences[XDA13010201] ; National Natural Science Foundation of China[41877267] ; National Natural Science Foundation of China[41372316]
WOS研究方向	Engineering ; Oceanography ; Mining & Mineral Processing
语种	英语
出版者	TAYLOR & FRANCIS INC
WOS记录号	WOS:000523739800001
内容类型	期刊论文
源URL	[http://119.78.100.198/handle/2S6PX9GI/23830]
专题	中科院武汉岩土力学所
通讯作者	Meng, Qingshan
作者单位	1.Wuhan Univ Sci & Technol, Sch Automobile & Traff Engn, Wuhan, Peoples R China 2.Chinese Acad Sci, Inst Rock & Soil Mech, State Key Lab Geomech & Geotech Engn, Wuhan, Peoples R China 3.Wuhan Univ Sci & Technol, Sch Urban Construct, Dept Civil Engn, Wuhan, Peoples R China
推荐引用方式 GB/T 7714	Wang, Shuai,Lei, Xuewen,Meng, Qingshan,et al. Model tests of single pile vertical cyclic loading in calcareous sand[J]. MARINE GEORESOURCES & GEOTECHNOLOGY,2020:12.
APA	Wang, Shuai,Lei, Xuewen,Meng, Qingshan,Xu, Jieli,Wang, Mingzhao,&Guo, Wei.(2020).Model tests of single pile vertical cyclic loading in calcareous sand.MARINE GEORESOURCES & GEOTECHNOLOGY,12.
MLA	Wang, Shuai,et al."Model tests of single pile vertical cyclic loading in calcareous sand".MARINE GEORESOURCES & GEOTECHNOLOGY (2020):12.