An enhanced index for evaluating natural joint roughness considering multiple morphological factors affecting the shear behavior

doi:10.1007/s10064-019-01700-1

	An enhanced index for evaluating natural joint roughness considering multiple morphological factors affecting the shear behavior
	Song, Leibo 2,3; Jiang, Quan 3; Li, Li-fu 3; Liu, Chang 3; Liu, Xiao-pei 3; Xiong, Jun 1
刊名	BULLETIN OF ENGINEERING GEOLOGY AND THE ENVIRONMENT
	2020-05-01
卷号	79 期号:4 页码:2037-2057
关键词	Natural joint Shear behavior Joint roughness Peak shear strength Joint morphology
ISSN号	1435-9529
DOI	10.1007/s10064-019-01700-1
英文摘要	Accurate description of joint morphology is a key issue for understanding natural joint's shear behavior and estimating its shear strength. Five sets of joint specimens with different morphological characteristics are shearing tested under different normal loads. These test results reveal that three factors, i.e., inclination angle, asperity height, and morphology of the joint back slope along the shear direction, significantly affect shear behavior. Considering the affecting mechanism of these three factors on joint's shear behavior, a new index, named shear roughness coefficient (SRC), is proposed to accurately estimate the shear strength of rock joints. With the help of this new index, the classical JRC-JCS shear strength model can be extended from 2D to 3D surface of natural joint, which can improve estimation accuracy and reflect the shearing direction effect on joint's shear strength.
WOS研究方向	Engineering ; Geology
语种	英语
出版者	SPRINGER HEIDELBERG
WOS记录号	WOS:000526386800027
内容类型	期刊论文
源URL	[http://119.78.100.198/handle/2S6PX9GI/23938]
专题	中科院武汉岩土力学所
通讯作者	Jiang, Quan
作者单位	1.Univ Alberta, Dept Civil & Environm Engn, Edmonton, AB T6G 2W2, Canada 2.Shaoxing Univ, Dept Civil Engn, Shaoxing 312000, Zhejiang, Peoples R China 3.Chinese Acad Sci, Inst Rock & Soil Mech, State Key Lab Geomech & Geotech Engn, Wuhan 430071, Hubei, Peoples R China
推荐引用方式 GB/T 7714	Song, Leibo,Jiang, Quan,Li, Li-fu,et al. An enhanced index for evaluating natural joint roughness considering multiple morphological factors affecting the shear behavior[J]. BULLETIN OF ENGINEERING GEOLOGY AND THE ENVIRONMENT,2020,79(4):2037-2057.
APA	Song, Leibo,Jiang, Quan,Li, Li-fu,Liu, Chang,Liu, Xiao-pei,&Xiong, Jun.(2020).An enhanced index for evaluating natural joint roughness considering multiple morphological factors affecting the shear behavior.BULLETIN OF ENGINEERING GEOLOGY AND THE ENVIRONMENT,79(4),2037-2057.
MLA	Song, Leibo,et al."An enhanced index for evaluating natural joint roughness considering multiple morphological factors affecting the shear behavior".BULLETIN OF ENGINEERING GEOLOGY AND THE ENVIRONMENT 79.4(2020):2037-2057.