Numerical simulation of triaxial tests for coarse-grained soil considering the initial fabric of samples grain

doi:10.4028/www.scientific.net/AMR.143-144.873

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 > 会议论文

	Numerical simulation of triaxial tests for coarse-grained soil considering the initial fabric of samples grain
	Wang, Guang-Jin 1; Kong, Xiang-Yun 2; Gu, Yi-Lei 1; Yang, Chun-He 3
	2011
会议日期	DEC 17-20, 2010
会议地点	Chongqing, PEOPLES R CHINA
关键词	Coarse-grained soil Initial fabric of grain Cellular Automaton FLAC(3D) Shear band
卷号	143-144
DOI	10.4028/www.scientific.net/AMR.143-144.873
页码	873
英文摘要	The strength parameters of granular coarse-grained soil are the critical factor that affects the stability of ultra-high dump. The soil particles of different size have no sorting and random distribution, which leads to the initial fabric of sample grain uncontrolled in the laboratory test of coarse-grained soil, therefore, only relying on the laboratory testing is difficult to obtain the reliable strength parameters of coarse-grained soil. Based on Cellular Automata method, combining the laboratory triaxial tests of coarse-grained soil developed the HHC-CA model which generated the coarse-grained soil samples of different initial fabric of grain to characterize the heterogeneous and random distribution of coarse-grained soil grain group. Then by means of FLAC(3D), conducting triaxial numerical simulation tests of coarse-grained soil and discussing the relationship between the gravel contents of samples shear band and samples and internal friction angle. Moreover, the shear strength model for different coarse-grained contents is established. Numerical simulation results indicated that the relationship between internal friction angle of coarse-grained soil and gravel contents of samples shear band were increasing function in the same size grading. According to the increasing of samples gravel contents, the internal friction angle might reduce, but the mean internal friction angle significantly increased with the increment of samples gravel contents.
源文献作者	Wang, H ; Zhang, BJ ; Liu, XZ ; Luo, DZ ; Zhong, SB
会议录	SMART MATERIALS AND INTELLIGENT SYSTEMS, PTS 1 AND 2
会议录出版者	TRANS TECH PUBLICATIONS LTD
会议录出版地	DURNTEN-ZURICH
语种	英语
WOS研究方向	Computer Science ; Materials Science
WOS记录号	WOS:000288884700171
内容类型	会议论文
源URL	[http://119.78.100.198/handle/2S6PX9GI/4609]
专题	岩土力学所知识全产出_会议论文
作者单位	1.Chongqing Univ, Coll Resources & Environm Sci ; 2.Jiangxi Nucl Ind Geol Bur; 3.Chinese Acad Sci, Inst Rock & Soil Mech
推荐引用方式 GB/T 7714	Wang, Guang-Jin,Kong, Xiang-Yun,Gu, Yi-Lei,et al. Numerical simulation of triaxial tests for coarse-grained soil considering the initial fabric of samples grain[C]. 见:. Chongqing, PEOPLES R CHINA. DEC 17-20, 2010.