Mesoscopic pullout behavior of geosynthetics-sand-clay layered reinforced structures using discrete element method

doi:10.1007/s11440-021-01422-3

	Mesoscopic pullout behavior of geosynthetics-sand-clay layered reinforced structures using discrete element method
	Xie, Mingxing 4; Zheng, Junjie 3; Cao, Wenzhao 2; Dong, Xiaoqiang 4; Yang, Tao 3; Cui, Lan 1
刊名	ACTA GEOTECHNICA
	2021-12-07
页码	20
关键词	Clay Discrete element method Geosynthetics Pullout behavior Resistance
ISSN号	1861-1125
DOI	10.1007/s11440-021-01422-3
英文摘要	The geosynthetics-sand-clay layered reinforced (GSCLR) structure has wide application prospects due to its massive adoption of the clay. To date, the coordination between the geosynthetics, sand, and clay is not thorough enough. In light of this, a series of discrete element method models were established for the pullout behavior of a GSCLR structure. The mesoscopic parameters such as the displacement vector, the contact force chain, and the local porosity were analyzed, and the mechanism for the load transfer between the geogrid, sand layer, and clay layer was examined. The thickness and porosity of the sand layer were also considered as the variables. The effects of the various factors on the strength index of the geogrid-sand interface were analyzed. The results showed obvious differences in the movement trend and mesoscopic parameters changes of the sand and clay layer in different regions. The thickness of the shear bands generated in the sand layer was affected by the upper and lower clay layers. At the same pullout displacement, the ultimate pullout resistance of the GSCLR structure did not enlarge continuously with an increase in the thickness of the sand layer, and there was an optimal thickness of the sand layer.
资助项目	National Natural Science Foundation of China (NSFC)[52008285] ; National Natural Science Foundation of China (NSFC)[52178341] ; National Natural Science Foundation of China (NSFC)[51809191] ; Natural Science Foundation of Guangdong Province, China[2021A1515011682]
WOS研究方向	Engineering
语种	英语
出版者	SPRINGER HEIDELBERG
WOS记录号	WOS:000727764600001
内容类型	期刊论文
源URL	[http://119.78.100.198/handle/2S6PX9GI/28332]
专题	中科院武汉岩土力学所
通讯作者	Dong, Xiaoqiang
作者单位	1.Chinese Acad Sci, Inst Rock & Soil Mech, State Key Lab Geomech & Geotech Engn, Wuhan 430071, Peoples R China 2.Cent Res Inst Bldg & Construct Shenzhen Co Ltd, MCC Grp, Shenzhen 518055, Peoples R China 3.Huazhong Univ Sci & Technol, Inst Geotech & Underground Engn, Wuhan 430074, Peoples R China 4.Taiyuan Univ Technol, Coll Civil Engn, Taiyuan 030024, Peoples R China
推荐引用方式 GB/T 7714	Xie, Mingxing,Zheng, Junjie,Cao, Wenzhao,et al. Mesoscopic pullout behavior of geosynthetics-sand-clay layered reinforced structures using discrete element method[J]. ACTA GEOTECHNICA,2021:20.
APA	Xie, Mingxing,Zheng, Junjie,Cao, Wenzhao,Dong, Xiaoqiang,Yang, Tao,&Cui, Lan.(2021).Mesoscopic pullout behavior of geosynthetics-sand-clay layered reinforced structures using discrete element method.ACTA GEOTECHNICA,20.
MLA	Xie, Mingxing,et al."Mesoscopic pullout behavior of geosynthetics-sand-clay layered reinforced structures using discrete element method".ACTA GEOTECHNICA (2021):20.