Anisotropic modeling of layered rocks incorporating planes of weakness and volumetric stress

doi:10.1002/ese3.551

CORC > 武汉岩土力学研究所 > 中科院武汉岩土力学所 > 岩土力学所知识全产出 > 期刊论文

	Anisotropic modeling of layered rocks incorporating planes of weakness and volumetric stress
	Hu, Shanchao ; Tan, Yunliang ; Zhou, Hui ; Ru, Wenkai ; Ning, Jianguo ; Wang, Jun ; Huang, Dongmei ; Li, Zhen
刊名	ENERGY SCIENCE & ENGINEERING
	2020
卷号	8 期号:3 页码:789-803
关键词	anisotropy mechanical model plastic internal variable sensitivity analysis volumetric stress
ISSN号	2050-0505
DOI	10.1002/ese3.551
英文摘要	Layered rocks exhibit notable transverse isotropy and have a significant impact on the deformation and failure characteristics of underground structures. To a large extent, the mechanical properties of layered rocks are related to the structure and stress state of their bedding planes. To obtain an in-depth understanding of the deformation and yield characteristics of layered rocks, a mechanical model for layered rocks incorporating planes of weakness and volumetric stress is proposed by improving the strain-hardening/softening ubiquitous-joint model based on continuum mechanics methods. In this mechanical model, elastoplastic equations for the matrix and bedding planes of layered rocks are established. The evolution of the mechanical parameters of the matrix and bedding planes of layered rocks with the internal variable is determined. In addition, the sensitivity of the model parameters is analyzed, and a method for determining the parameters is provided to reduce the complexity in obtaining these parameters. The numerical calculation results for the laboratory tests on layered sandstone specimens under various stress levels agree relatively well with the test results, thereby validating the effectiveness of the improved model. The methods and results of this study provide a significant reference for the analysis of the deformation and failure of other layered rocks.
WOS研究方向	Energy & Fuels
语种	英语
WOS记录号	WOS:000498326300001
内容类型	期刊论文
源URL	[http://119.78.100.198/handle/2S6PX9GI/14822]
专题	岩土力学所知识全产出_期刊论文
作者单位	1.Shandong Univ Sci & Technol, Shandong Prov & Minist Sci & Technol, State Key Lab Min Disaster Prevent & Control, 579 Qianwangang Rd, Qingdao, Shandong, Peoples R China; 2.Henan Polytech Univ, Sch Civil Engn, Jiaozuo, Peoples R China 3.Chinese Acad Sci, Inst Rock & Soil Mech, State Key Lab Geomech & Geotech Engn, Wuhan, Hubei, Peoples R China; 4.China Univ Min & Technol, State Key Lab Coal Resources & Safe Min, Xuzhou, Peoples R China;
推荐引用方式 GB/T 7714	Hu, Shanchao,Tan, Yunliang,Zhou, Hui,et al. Anisotropic modeling of layered rocks incorporating planes of weakness and volumetric stress[J]. ENERGY SCIENCE & ENGINEERING,2020,8(3):789-803.
APA	Hu, Shanchao.,Tan, Yunliang.,Zhou, Hui.,Ru, Wenkai.,Ning, Jianguo.,...&Li, Zhen.(2020).Anisotropic modeling of layered rocks incorporating planes of weakness and volumetric stress.ENERGY SCIENCE & ENGINEERING,8(3),789-803.
MLA	Hu, Shanchao,et al."Anisotropic modeling of layered rocks incorporating planes of weakness and volumetric stress".ENERGY SCIENCE & ENGINEERING 8.3(2020):789-803.