Study on Electroosmosis Consolidation of Punctiform Electrode Unit

doi:10.1155/2021/6627331

CORC > 兰州理工大学 > 兰州理工大学 > 土木工程学院

	Study on Electroosmosis Consolidation of Punctiform Electrode Unit
	Yang, Xiaoyu; Xie, Yongbin; Dong, Jianhua; Liu, Guosheng; Zheng, Yalin
刊名	Advances in Materials Science and Engineering
	2021
卷号	2021
关键词	Anodes Electric fields Electric potential Galerkin methods Pore pressure Pressure distribution Pressure effects Water Degree of consolidations Electric potential fields Electroosmotic consolidation Excess pore water pressure Potential distributions Potential field distributions Two-dimensional effects Uniform electric fields
ISSN号	1687-8434
DOI	10.1155/2021/6627331
英文摘要	In the electroosmosis method, when the distance between the opposite electrode and the same electrode is equal, the two-dimensional effect of electroosmotic consolidation is significant, and the use of one-dimensional model will overestimate the potential gradient, making the calculated pore pressure value too large. Aiming at this problem, according to the electrode arrangement rule and the minimum composition, a punctiform electrode unit model is proposed, and electroosmotic experiments are carried out on the symmetric and asymmetric unit models. The two-dimensional electroosmotic consolidation governing equation of the punctiform electrode unit is established. The electric potential field of the electrode unit and the finite element form of the electroosmotic consolidation equation are given by the Galerkin method. The PyEcFem finite-element numerical library is developed using Python programming to calculate. The research results show the following: (1) The two-dimensional effect of the potential field distribution of the punctiform electrode unit is significant. The reduction of spacing of the same nature electrode in the symmetrical unit can make the potential distribution close to a uniform electric field. The asymmetry prevents the electric potential field distribution from being reduced to a one-dimensional model. (2) The number of anodes will affect the electroosmosis effect of the soil. The more the anodes, the better the electroosmosis reinforcement effect of the soil, and the distribution of negative excess pore water pressure will be more uniform. (3) In the early stage of electroosmosis, the more the drainage boundaries, the faster the generation of negative pore pressure, but in the middle and late stages of electroosmosis, the potential value becomes the decisive factor, and the amplitude of negative pore water pressure in asymmetric units is higher than that in symmetric units. The potential distribution will not affect the degree of consolidation but will affect the extreme pore water pressure. © 2021 Xiaoyu Yang et al.
WOS研究方向	Materials Science
语种	英语
出版者	Hindawi Limited
WOS记录号	WOS:000670860400001
内容类型	期刊论文
源URL	[http://ir.lut.edu.cn/handle/2XXMBERH/148429]
专题	土木工程学院
作者单位	Western Centre of Disaster Mitigation in Civil Engineering, Ministry of Education, Lanzhou University of Technology, Lanzhou; 730050, China
推荐引用方式 GB/T 7714	Yang, Xiaoyu,Xie, Yongbin,Dong, Jianhua,et al. Study on Electroosmosis Consolidation of Punctiform Electrode Unit[J]. Advances in Materials Science and Engineering,2021,2021.
APA	Yang, Xiaoyu,Xie, Yongbin,Dong, Jianhua,Liu, Guosheng,&Zheng, Yalin.(2021).Study on Electroosmosis Consolidation of Punctiform Electrode Unit.Advances in Materials Science and Engineering,2021.
MLA	Yang, Xiaoyu,et al."Study on Electroosmosis Consolidation of Punctiform Electrode Unit".Advances in Materials Science and Engineering 2021(2021).