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Influence of High Voltage Gradients on Electrokinetic Dewatering for Wenzhou Clay Slurry Improvement

  • EXPERIMENTAL INVESTIGATIONS
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Soil Mechanics and Foundation Engineering Aims and scope

Laboratory experiments were conducted to examine the feasibility and determine the optimal voltage gradient of electrokinetic consolidation of Wenzhou clay slurry with a small amount of fine sand. During the process of electrokinetic dewatering using high voltage gradients of 0.5-1.25 V/cm, the current, temperature, drainage, evaporated water, and electrolytic water were monitored in real-time. The results showed that a steady current was achieved under relatively lower voltage gradients (0.5 V/cm), while higher voltage gradients (1 V/cm) reduced the drainage time. Voltage gradients greater than 1.0 V/cm had no significant effect on the drainage rate. A greater reduction in temperature was achieved under higher voltage gradients than using lower voltage gradients, and the evaporated water and electrolytic water increased with increasing voltage gradient. Taken together, the results of this study can be used to optimize engineering practices during land reclamation efforts.

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Author information

Authors and Affiliations

  1. Wenzhou University, Wenzhou, China

    Hongtao Fu, Jun Wang & Xiuqing Hu

  2. Key Laboratory of Engineering and Technology for Soft Soil Foundation and Tideland Reclamation, Wenzhou, China

    Hongtao Fu, Jun Wang, Yuanqiang Cai & Xiuqing Hu

  3. Innovation Center of Tideland Reclamation and Ecological Protection, Wenzhou, China

    Hongtao Fu, Jun Wang, Yuanqiang Cai & Xiuqing Hu

  4. Jiangxi University of Science and Technology, Ganzhou, China

    Lili Yuan

  5. Zhejiang University, Hangzhou, China

    Yuanqiang Cai

  6. Zhejiang University of Technology, Hangzhou, China

    Yuanqiang Cai

  7. School of Engineering, University of Warwick, Coventry, CV4 7AL, UK

    Xueyu Geng

Authors
  1. Hongtao Fu
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  2. Lili Yuan
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  3. Jun Wang
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  4. Yuanqiang Cai
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  5. Xiuqing Hu
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  6. Xueyu Geng
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Corresponding author

Correspondence to Jun Wang.

Additional information

Translated from Osnovaniya, Fundamenty i Mekhanika Gruntov, No. 6, p. 13, November-December, 2018.

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Fu, H., Yuan, L., Wang, J. et al. Influence of High Voltage Gradients on Electrokinetic Dewatering for Wenzhou Clay Slurry Improvement. Soil Mech Found Eng 55, 400–407 (2019). https://doi.org/10.1007/s11204-019-09555-0

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  • DOI: https://doi.org/10.1007/s11204-019-09555-0

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