Experimental and Numerical Analysis of the Shear Behaviour of Cemented Concrete-Rock Joints

doi:10.1007/s00603-014-0560-6

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	Experimental and Numerical Analysis of the Shear Behaviour of Cemented Concrete-Rock Joints
	Tian, H. M.1; Chen, W. Z.1,2; Yang, D. S.1; Yang, J. P.1
刊名	ROCK MECHANICS AND ROCK ENGINEERING
	2015
卷号	48 期号:1 页码:213-222
关键词	Cemented concrete-rock joint Shear behaviour Cohesive damage Interface model
ISSN号	0723-2632
DOI	10.1007/s00603-014-0560-6
英文摘要	The shear behaviour of cemented concrete-rock joints is a key factor affecting the shear resistance of dam foundations, arch bridge foundations, rock socketed piles and rock bolts in rock engineering. This paper presents an experimental and numerical investigation of the shear behaviour of cemented concrete-rock joints by direct shear tests. In this study we focused on the bond strength of cemented concrete-rock joints, so limestone with smooth surfaces was used for samples preparation to reduce the roughness effect. The experimental results show that the shear strength of joints with good adhesion is strongly dependent on the bond strength of the cohesive interfaces when the applied normal stress is less than 6 MPa. In addition, the sudden and gradual bond failure processes of the cohesive interfaces were observed with an increase of the normal stress. A simple, yet realistic, model of cemented concrete-rock joint is proposed to simulate the observed behaviour, including elastic behaviour of the bond before peak shear stress and post-peak behaviour due to bond failure and friction increase. Finally, the parameters analysis and calibration of the proposed model are presented.
WOS研究方向	Engineering ; Geology
语种	英语
出版者	SPRINGER WIEN
WOS记录号	WOS:000347296400014
内容类型	期刊论文
源URL	[http://119.78.100.198/handle/2S6PX9GI/3667]
专题	岩土力学所知识全产出_期刊论文国家重点实验室知识产出_期刊论文
作者单位	1.Chinese Acad Sci, State Key Lab Geomech & Geotech Engn, Inst Rock & Soil Mech ; 2.Shandong Univ, Res Ctr Geotech & Struct Engn
推荐引用方式 GB/T 7714	Tian, H. M.,Chen, W. Z.,Yang, D. S.,et al. Experimental and Numerical Analysis of the Shear Behaviour of Cemented Concrete-Rock Joints[J]. ROCK MECHANICS AND ROCK ENGINEERING,2015,48(1):213-222.
APA	Tian, H. M.,Chen, W. Z.,Yang, D. S.,&Yang, J. P..(2015).Experimental and Numerical Analysis of the Shear Behaviour of Cemented Concrete-Rock Joints.ROCK MECHANICS AND ROCK ENGINEERING,48(1),213-222.
MLA	Tian, H. M.,et al."Experimental and Numerical Analysis of the Shear Behaviour of Cemented Concrete-Rock Joints".ROCK MECHANICS AND ROCK ENGINEERING 48.1(2015):213-222.