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DOI	10.5802/crmeca.73
	Analysis on mechanical properties and evolution of mesostructure of soil-rock mixture samples from contact network perspective
	Xu, Ran; Liu, Enlong; Xing, Huilin
通讯作者	Liu, EL (通讯作者)，Sichuan Univ, Coll Water Resource & Hydropower, State Key Lab Hydraul & Mt River Engn, Chengdu 610065, Peoples R China. ; Liu, EL (通讯作者)，Chinese Acad Sci, Northwest Inst Ecoenvironm & Resources, State Key Lab Frozen Soil Engn, Lanzhou 730000, Peoples R China.
发表日期	2021
ISSN	1631-0721
EISSN	1873-7234
起始页码	83
结束页码	102
卷号	349 期号:1
英文摘要	Based on discrete element method (DEM), three kinds of soil-rock mixture (SRM) models with different coarse particle contents were established and triaxial compression tests were carried out. The results show that the force chains in the particle system playing the main bearing role need more lateral supports, which results in the contact with a higher coordination number and often bear larger contact force. The relationship between the contact's carrying capacity and the coordination number can be fit by a quadric surface. Taking the fit quadric surface as the capacity function, the network-flow model of force transfer can be constructed to quantify the force transfer ability of a contact network. By connecting the maximum flow in the network with the hardening parameter of the unified hardening model, the stress-strain relationship of SRM can be predicted to some extent, which lays a basis for formulating micro-macro constitutive model for granular materials.
关键词	SHEAR-STRENGTH GRANULAR-MATERIALS MODEL STRESS
英文关键词	Granular material; Triaxial compression; Contact network; Critical state; Force chain
语种	英语
WOS研究方向	Mechanics
WOS类目	Mechanics
WOS记录号	WOS:000668992500004
来源期刊	COMPTES RENDUS MECANIQUE
来源机构	中国科学院西北生态环境资源研究院
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/253985
作者单位	[Xu, Ran] Sichuan Univ, Inst Disaster Management & Reconstruct, Chengdu 610207, Peoples R China; [Liu, Enlong] Sichuan Univ, Coll Water Resource & Hydropower, State Key Lab Hydraul & Mt River Engn, Chengdu 610065, Peoples R China; [Liu, Enlong] Chinese Acad Sci, Northwest Inst Ecoenvironm & Resources, State Key Lab Frozen Soil Engn, Lanzhou 730000, Peoples R China; [Xing, Huilin] Univ Queensland, Earth Syst Sci Computat Ctr ESSCC, Brisbane, Qld 4072, Australia
推荐引用方式 GB/T 7714	Xu, Ran,Liu, Enlong,Xing, Huilin. Analysis on mechanical properties and evolution of mesostructure of soil-rock mixture samples from contact network perspective[J]. 中国科学院西北生态环境资源研究院,2021,349(1).
APA	Xu, Ran,Liu, Enlong,&Xing, Huilin.(2021).Analysis on mechanical properties and evolution of mesostructure of soil-rock mixture samples from contact network perspective.COMPTES RENDUS MECANIQUE,349(1).
MLA	Xu, Ran,et al."Analysis on mechanical properties and evolution of mesostructure of soil-rock mixture samples from contact network perspective".COMPTES RENDUS MECANIQUE 349.1(2021).