Experimental study on post-peak stick-slip failure of three different rock joints under direct shear tests

doi:10.1088/1755-1315/861/4/042029

	Experimental study on post-peak stick-slip failure of three different rock joints under direct shear tests
	Liu,Chang 3,4; Jiang,Quan 4; Liu,Jian 3,4; Wu,Si 3,4; Chen,Tao 2; Xiong,Xiantao 1
刊名	IOP Conference Series: Earth and Environmental Science
	2021-10-01
卷号	861 期号:4
ISSN号	1755-1307
DOI	10.1088/1755-1315/861/4/042029
英文摘要	Abstract For discovering the post-peak stick-slip failure characteristics of joint in rock mass and mechanism of the post-peak shear failure, a coupling 3D scanning and 3D engraving method are presented to create three kinds of rock joints (sandstone, marble, and granite) with identical morphology, and corresponding direct shear tests and synchronous Acoustic emission monitoring are conducted. A multi-aspect analysis is performed to recognize the mechanical behavior of post-peak stick-slip and its meso-fracture mechanism of rock joint. The results indicate that the occurrence of post-peak stick-slip failure of rock joint mainly depends on rock types, and its failure type changes with the increase in the normal stress. The post-peak stick-slip phase has the same failure type and dominant frequency range as those of the shear load peak phase. Thus, the post-peak stick-slip failure can be understood as a small shear peak failure. The failure type of the shear load peak can be used to predict post-peak stick-slip failure of rock joint. It has important reference significance for precursor identification of shear disaster in engineering rock mass.
语种	英语
出版者	IOP Publishing
WOS记录号	IOP:EES_861_4_042029
内容类型	期刊论文
源URL	[http://119.78.100.198/handle/2S6PX9GI/28440]
专题	中科院武汉岩土力学所
作者单位	1.PowerChina Chengdu Engineering Corporation Limited, Chengdu, Sichuan, 61072, China 2.Sichuan Huaneng Luding Hydropower Co., Ltd., Luding, Sichuan, 626100, China 3.University of Chinese Academy of Sciences, Beijing, 100049, China 4.State Key Laboratory of Geomechanics and Geotechnical Engineering, Institute of Rock and Soil Mechanics, Chinese Academy of Sciences, Wuhan, Hubei, 430071, China
推荐引用方式 GB/T 7714	Liu,Chang,Jiang,Quan,Liu,Jian,et al. Experimental study on post-peak stick-slip failure of three different rock joints under direct shear tests[J]. IOP Conference Series: Earth and Environmental Science,2021,861(4).
APA	Liu,Chang,Jiang,Quan,Liu,Jian,Wu,Si,Chen,Tao,&Xiong,Xiantao.(2021).Experimental study on post-peak stick-slip failure of three different rock joints under direct shear tests.IOP Conference Series: Earth and Environmental Science,861(4).
MLA	Liu,Chang,et al."Experimental study on post-peak stick-slip failure of three different rock joints under direct shear tests".IOP Conference Series: Earth and Environmental Science 861.4(2021).