Experimental study on the shear behavior of fully grouted bolts

doi:10.1016/j.conbuildmat.2019.06.207

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	Experimental study on the shear behavior of fully grouted bolts
	Li, Yuzong ; Liu, Caihua
	2019
发表期刊	CONSTRUCTION AND BUILDING MATERIALS
ISSN	0950-0618
卷号	223 期号:-页码:1123-1134
摘要	Failures of fully grouted bolts due to the combination of tensile and shear loads are commonly observed, but the bolting mechanism is not clearly revealed. Direct shear tests were conducted on three groups of specimens with different bolting angles or grout strengths, and shear loads, shear displacements and bolt strains were measured. The deflecting shape, the bending angle and the failure characteristic of the bolts were described in detail. The relationship between the shear load and the shear displacement was analyzed, and the internal forces were determined according to the bolt strains or the shear displacement of the joint. The test results show that the bolting angle and grout strength play significant roles in influencing the bolt contribution. With increasing the bolting angle, the bolt contribution rises first and then reduces, and they obey a parabola relationship. Particularly, the contribution of the bolt is less than its ultimate tensile load by a large margin when the bolt steeply intersects the rock joint. A higher shear contribution will be mobilized in a weaker grout. It is also observed that the failure of the bolt occurs at the bolt-joint intersection rather than at the two plastic hinges. (C) 2019 Published by Elsevier Ltd.
关键词	Fully grouted bolts Experimental study Bolting angle Grout strength Shear behavior
DOI	10.1016/j.conbuildmat.2019.06.207
收录类别	SCI
语种	英语
WOS研究方向	Construction & Building Technology ; Engineering ; Materials Science
WOS类目	Construction & Building Technology ; Engineering, Civil ; Materials Science, Multidisciplinary
WOS记录号	WOS:000487569100098
引用统计	被引频次：29[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://119.78.100.198/handle/2S6PX9GI/14846
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, Inst Rock & Soil Mech, State Key Lab Geomech & Geotech Engn, Wuhan 430071, Hubei, Peoples R China; 2.Anhui Univ Sci & Technol, State Key Lab Min Response & Disaster Prevent & C, Huainan 232001, Peoples R China; 3.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
推荐引用方式 GB/T 7714	Li, Yuzong,Liu, Caihua. Experimental study on the shear behavior of fully grouted bolts[J]. CONSTRUCTION AND BUILDING MATERIALS,2019,223(-):1123-1134.
APA	Li, Yuzong,&Liu, Caihua.(2019).Experimental study on the shear behavior of fully grouted bolts.CONSTRUCTION AND BUILDING MATERIALS,223(-),1123-1134.
MLA	Li, Yuzong,et al."Experimental study on the shear behavior of fully grouted bolts".CONSTRUCTION AND BUILDING MATERIALS 223.-(2019):1123-1134.

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