Characterization of the interface between concrete pile and coral reef calcarenite using constant normal stiffness direct shear test

doi:10.1007/s10064-020-02039-8

	Characterization of the interface between concrete pile and coral reef calcarenite using constant normal stiffness direct shear test
	Liu, Haifeng 1,3; Zhu, Changqi 1; Wang, Ren 1,3; Cui, Xiang 1,2; Wang, Tianmin 1,2
刊名	BULLETIN OF ENGINEERING GEOLOGY AND THE ENVIRONMENT
	2020-11-11
页码	9
关键词	Coral reef calcarenite Rock-socketed concrete pile Constant normal stiffness direct shear test Shear dilation
ISSN号	1435-9529
DOI	10.1007/s10064-020-02039-8
英文摘要	This research aims to study the bearing capacity of pre-bored rock-socketed concrete pile on coral reef calcarenite. Constant normal stiffness direct shear test is performed on the interface between the pile and the coral reef calcarenite sample. Observations are made towards the friction mechanism of the pile-rock interface and the consequent shear dilation behaviors. It is shown that the shear failure occurs exclusively inside the coral reef calcarenite. This is attributed to the diffusion and agglomeration of cement paste in the highly porous coral reef calcarenite during the construction. The shear strength of the pile-rock interface increases as the applied normal stress increases. The dilation of the shear failure surface after the peak strength decreases as the applied normal stress increases. When the applied normal stress amounts to 4 MPa, shrinkage is observed for the shear failure surface. When the pile-rock interface slides, the residual shear strength of the interface increases as the applied normal stress increases. Meanwhile, the curve of the residual shear strength versus the shear displacement is affected by the shape and the roughness of the shear failure surface and it fluctuates under different levels of normal stress.
资助项目	Strategic Priority Research Program of the Chinese Academy of Sciences[XDA13010201] ; Strategic Priority Research Program of the Chinese Academy of Sciences[XDA13010301] ; Self-Deployment Project of Innovation Academy of South China Sea Ecology and Environmental Engineering of the Chinese Academy of Sciences[ISEE2020YB09] ; National Natural Science Foundation of China[41877271]
WOS研究方向	Engineering ; Geology
语种	英语
出版者	SPRINGER HEIDELBERG
WOS记录号	WOS:000588569300001
内容类型	期刊论文
源URL	[http://119.78.100.198/handle/2S6PX9GI/25041]
专题	中科院武汉岩土力学所
通讯作者	Liu, Haifeng; Zhu, Changqi
作者单位	1.Chinese Acad Sci, Inst Rock & Soil Mech, State Key Lab Geomech & Geotech Engn, Wuhan 430071, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 3.Chinese Acad Sci, Innovat Acad South China Sea Ecol & Environm Engn, Guangzhou 510301, Peoples R China
推荐引用方式 GB/T 7714	Liu, Haifeng,Zhu, Changqi,Wang, Ren,et al. Characterization of the interface between concrete pile and coral reef calcarenite using constant normal stiffness direct shear test[J]. BULLETIN OF ENGINEERING GEOLOGY AND THE ENVIRONMENT,2020:9.
APA	Liu, Haifeng,Zhu, Changqi,Wang, Ren,Cui, Xiang,&Wang, Tianmin.(2020).Characterization of the interface between concrete pile and coral reef calcarenite using constant normal stiffness direct shear test.BULLETIN OF ENGINEERING GEOLOGY AND THE ENVIRONMENT,9.
MLA	Liu, Haifeng,et al."Characterization of the interface between concrete pile and coral reef calcarenite using constant normal stiffness direct shear test".BULLETIN OF ENGINEERING GEOLOGY AND THE ENVIRONMENT (2020):9.