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One Dimensional Electroosmotic Dewatering Model of Mud Based on Piecewise Linearization
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[1]CEN Xunyun,LIU Zhongyu,ZHANG Jingwei,et al.One Dimensional Electroosmotic Dewatering Model of Mud Based on Piecewise Linearization[J].Journal of Zhengzhou University (Engineering Science),2024,45(03):22-28.[doi:10. 13705 / j. issn. 1671-6833. 2024. 03. 003]
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Journal of Zhengzhou University (Engineering Science)[ISSN 1671-6833/CN 41-1339/T] Volume: 45 Number of periods: 2024 03 Page number: 22-28 Column: Public date: 2024-04-20
Title:
One Dimensional Electroosmotic Dewatering Model of Mud Based on Piecewise Linearization
Author(s):
CEN Xunyun 1; LIU Zhongyu 1; ZHANG Jingwei 1; LUO Wenpei 1; WANG Liangqiang 2
1. School of Civil Engineering, Zhengzhou University, Zhengzhou 450001,China; 2. Zhengzhou Sanhe Hydraulic Machinery Co. , Ltd. , Zhengzhou 450120, China
Keywords:
electroosmotic dewatering;  mud;  piecewise linearization;  electric potential;  electroosmotic coefficient;  model tes
CLC:
TU43
DOI:
10. 13705 / j. issn. 1671-6833. 2024. 03. 003
Abstract:
Based on piecewise-linear method, a one-dimensional electroosmotic dewatering model of mud was proposed in order to further explore the influence factors of mud electroosmotic dehydration.In this model, the combined influence of potential gradient and void ratio on the electroosmotic coefficient of mud and the nonlinear stress-strain relationship and large deformation effect of mud were considered. Compared with the results of relevant analytical solutions and laboratory model tests, the error of this model was less than 5%. On this basis, the influences of loading voltage,compression index and electroosmotic coefficient on the process of mud electroosmosis dehydration were analyzed.The results showed that the increase of loading voltage and electroosmotic coefficient could improve the final water removal and shorten the stabilization time. With the increase of mud compressibility, the final dewatering volume of mud increased, but the stabilization time was prolonged.
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