Numerical and Experimental Investigation of the Argillaceous Sandstone Mechanical Properties by the Discrete Element Method

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	Numerical and Experimental Investigation of the Argillaceous Sandstone Mechanical Properties by the Discrete Element Method
	Xiao, Chengxu 1,2; Deng, Shouchun 2; Huang, Zhenghong 2; Zuo, Hong 2
	2017
会议日期	MAR 25-25, 2017
会议地点	Guangzhou, PEOPLES R CHINA
关键词	Rock mechanics Particle flow code Mesoscopic parameters Friction coefficient
卷号	124
页码	127-134
英文摘要	In this paper, the triaxial compression test of the argillaceous sandstone is carried out by using the digital control electrohydraulic servo testing machine (RMT-150C). Based on the results of the macroscopic test, we use the three-dimensional particle flow code to simulate the macroscopic stress and deformation characteristics of the argillaceous sandstone under the three-dimensional stress condition, and the meso-macroscopic parameters are connected to simulate the different porosity, The coefficient of friction, the bond strength on the specimen, and further improve the study of argillaceous sandstone. The results show that the simulation results of particle flow program are in good agreement with the macroscopic experiments, but the strength is slightly lower than the experimental value. The strength of argillaceous sandstone increases with the friction coefficient between the particles and the bond strength at the contact point. The strength decreases with the increase of the porosity ratio, but the effect is not as obvious as the friction coefficient. The significance of the study is to reveal the factors that reveeal the strength of coarse-grained soil from a microscopic point of view, breaking the limitations of conventional triaxial test.
会议录	PROCEEDINGS OF THE 2017 2ND INTERNATIONAL SYMPOSIUM ON ADVANCES IN ELECTRICAL, ELECTRONICS AND COMPUTER ENGINEERING (ISAEECE 2017)
会议录出版者	ATLANTIS PRESS
会议录出版地	PARIS
语种	英语
WOS研究方向	Engineering
WOS记录号	WOS:000417221100024
内容类型	会议论文
源URL	[http://119.78.100.198/handle/2S6PX9GI/4929]
专题	岩土力学所知识全产出_会议论文
作者单位	1.Hubei Univ Technol ; 2.Chinese Acad Sci, Inst Rock & Soil Mech
推荐引用方式 GB/T 7714	Xiao, Chengxu,Deng, Shouchun,Huang, Zhenghong,et al. Numerical and Experimental Investigation of the Argillaceous Sandstone Mechanical Properties by the Discrete Element Method[C]. 见:. Guangzhou, PEOPLES R CHINA. MAR 25-25, 2017.