Analysis of Layered Geogrids-Sand-Clay Reinforced Structures under Triaxial Compression by Discrete Element Method

doi:10.3390/app11219952

	Analysis of Layered Geogrids-Sand-Clay Reinforced Structures under Triaxial Compression by Discrete Element Method
	Cui, Lan 5,6; Cao, Wenzhao 4; Sheng, Qian 5,6; Xie, Mingxing 3; Yang, Tao 2; Xiao, Ping 1,6
刊名	APPLIED SCIENCES-BASEL
	2021-11-01
卷号	11 期号:21 页码:17
关键词	geosynthetics clay discrete element method triaxial compression test shear strength
DOI	10.3390/app11219952
英文摘要	Compared with the commonest geosynthetics-reinforced soil structures, layered geogrids-sand-clay reinforced (LGSCR) structures (School of Architecture and Civil Engineering, Shenyang University of Technology, Shenyang 110870, China) can replace granular materials with clay as the primary backfill material. Up until now, the performance of LGSCR structures under triaxial compression has been unclear. In this paper, the discrete element method was used to simulate the triaxial compression test on the LGSCR samples. Based on the particle flow software PFC3D, three types of cluster particle-simulated sand and the reinforced joints of the geogrid were constructed by secondary development. The effects of the geogrid embedment in sand layers, the number and thickness of sand layers in relation to the deviatoric stress, and the axial strain and the shear strength index of the LGSCR samples were analyzed. The results showed that laying the sand layers in the samples can improve their post-peak strain-softening characteristics and increase their peak strengths under a high confining pressure. A geogrid embedment in sand layers can further enhance the ductility and peak strength of the samples, and in terms of the shear strength index, there is a 41.6% to 54.8% increase in the apparent cohesion of the samples.
资助项目	National Natural Science Foundation of China (NSFC)[52009129] ; National Natural Science Foundation of China (NSFC)[52008285] ; National Natural Science Foundation of China (NSFC)[52178341] ; Natural Science Foundation of Guangdong Province, China[2021A1515011682]
WOS研究方向	Chemistry ; Engineering ; Materials Science ; Physics
语种	英语
出版者	MDPI
WOS记录号	WOS:000718522400001
内容类型	期刊论文
源URL	[http://119.78.100.198/handle/2S6PX9GI/28304]
专题	中科院武汉岩土力学所
通讯作者	Xie, Mingxing
作者单位	1.Shenyang Univ Technol, Sch Architecture & Civil Engn, Shenyang 110870, Peoples R China 2.Huazhong Univ Sci & Technol, Inst Geotech & Underground Engn, Wuhan 430074, Peoples R China 3.Taiyuan Univ Technol, Coll Civil Engn, Taiyuan 030024, Peoples R China 4.MCC Grp, Cent Res Inst Bldg & Construct Shenzhen Co Ltd, Shenzhen 518055, Peoples R China 5.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 6.Chinese Acad Sci, Inst Rock & Soil Mech, State Key Lab Geomech & Geotech Engn, Wuhan 430071, Peoples R China
推荐引用方式 GB/T 7714	Cui, Lan,Cao, Wenzhao,Sheng, Qian,et al. Analysis of Layered Geogrids-Sand-Clay Reinforced Structures under Triaxial Compression by Discrete Element Method[J]. APPLIED SCIENCES-BASEL,2021,11(21):17.
APA	Cui, Lan,Cao, Wenzhao,Sheng, Qian,Xie, Mingxing,Yang, Tao,&Xiao, Ping.(2021).Analysis of Layered Geogrids-Sand-Clay Reinforced Structures under Triaxial Compression by Discrete Element Method.APPLIED SCIENCES-BASEL,11(21),17.
MLA	Cui, Lan,et al."Analysis of Layered Geogrids-Sand-Clay Reinforced Structures under Triaxial Compression by Discrete Element Method".APPLIED SCIENCES-BASEL 11.21(2021):17.