Study on Electroosmosis Consolidation of Punctiform Electrode Unit
Yang, Xiaoyu; Xie, Yongbin; Dong, Jianhua; Liu, Guosheng; Zheng, Yalin
2021-04-12
发表期刊Advances in Materials Science and Engineering
ISSN1687-8434
卷号2021
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.
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
DOI10.1155/2021/6627331
收录类别EI ; SCIE
语种英语
WOS研究方向Materials Science
WOS类目Materials Science, Multidisciplinary
WOS记录号WOS:000670860400001
出版者Hindawi Limited
EI入藏号20211810291452
EI主题词Electroosmosis
EI分类号483.1 Soils and Soil Mechanics ; 701.1 Electricity: Basic Concepts and Phenomena ; 714.1 Electron Tubes ; 921.6 Numerical Methods ; 931.1 Mechanics
来源库WOS
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被引频次[WOS]:0   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符https://ir.lut.edu.cn/handle/2XXMBERH/148429
专题土木工程学院
通讯作者Dong, Jianhua
作者单位Lanzhou Univ Technol, Minist Educ, Western Ctr Disaster Mitigat Civil Engn, Lanzhou 730050, Peoples R China
第一作者单位兰州理工大学
通讯作者单位兰州理工大学
第一作者的第一单位兰州理工大学
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).
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