Numerical simulation of macro-meso mechanical behaviours of sandstone containing a single open fissure under uniaxial compression

doi:10.1080/19648189.2017.1381647

CORC > 武汉植物园 > 中国科学院武汉植物园

	Numerical simulation of macro-meso mechanical behaviours of sandstone containing a single open fissure under uniaxial compression
	Jiang, Shuihua 2; Yang, Jianhua 2; Yao, Chi 2; Wang, Bin 1,2
刊名	EUROPEAN JOURNAL OF ENVIRONMENTAL AND CIVIL ENGINEERING
	2018
卷号	22 页码:s99-s113
关键词	Fissured rock crack propagation anisotropy RBSM
ISSN号	1964-8189
DOI	10.1080/19648189.2017.1381647
英文摘要	By employing the improved rigid block spring method, the failure process of a sandstone example containing a single open fissure under uniaxial compression is modelled. In this method, the intact rock is considered as an assemblage of rigid polygonal blocks. Macro mechanical behaviours are governed by mechanical properties of interfaces between two neighbouring blocks. In the local scale on interfaces, both tensile splitting failure and shearing sliding failure are considered. Micro properties are obtained by a calibration procedure against the stress-strain curve of intact rock under uniaxial compression in the lab. Influences of fissure inclination and length on the uniaxial compression strength (UCS) and failure modes are discussed. Comparisons between numerical simulations and laboratory tests are presented. The growth process of micro-cracks is studied and the mechanism of micro-crack propagation is studied through analysis on the displacement evolution. Some conclusions are drawn: numerical results generally agree well with those from lab tests; the UCS of fissured rock is lower than the intact one; the UCS first goes down then goes up as inclination increases, but decreases gradually as fissure length increases; the micro failure modes are governed mainly by tensile splitting failures.
WOS研究方向	Engineering
语种	英语
出版者	TAYLOR & FRANCIS LTD
WOS记录号	WOS:000446212400006
内容类型	期刊论文
源URL	[http://202.127.146.157/handle/2RYDP1HH/5855]
专题	中国科学院武汉植物园
通讯作者	Yao, Chi
作者单位	1.Chinese Acad Sci, Inst Rock & Soil Mech, State Key Lab Geomech & Geotech Engn, Wuhan, Hubei, Peoples R China 2.Nanchang Univ, Sch Civil Engn & Architecture, Nanchang, Jiangxi, Peoples R China
推荐引用方式 GB/T 7714	Jiang, Shuihua,Yang, Jianhua,Yao, Chi,et al. Numerical simulation of macro-meso mechanical behaviours of sandstone containing a single open fissure under uniaxial compression[J]. EUROPEAN JOURNAL OF ENVIRONMENTAL AND CIVIL ENGINEERING,2018,22:s99-s113.
APA	Jiang, Shuihua,Yang, Jianhua,Yao, Chi,&Wang, Bin.(2018).Numerical simulation of macro-meso mechanical behaviours of sandstone containing a single open fissure under uniaxial compression.EUROPEAN JOURNAL OF ENVIRONMENTAL AND CIVIL ENGINEERING,22,s99-s113.
MLA	Jiang, Shuihua,et al."Numerical simulation of macro-meso mechanical behaviours of sandstone containing a single open fissure under uniaxial compression".EUROPEAN JOURNAL OF ENVIRONMENTAL AND CIVIL ENGINEERING 22(2018):s99-s113.