Experimental research on effect of electrode spacing on electro-osmotic dewatering under same voltage gradient

LI Ying; GONG Xiao-nan

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Experimental research on effect of electrode spacing on electro-osmotic dewatering under same voltage gradient

更新时间：2026-06-25

- Experimental research on effect of electrode spacing on electro-osmotic dewatering under same voltage gradient
- Vol. 33, Issue 1, (2012)
- 作者机构：
  
  1. 浙江大学软土与环境工程教育部重点实验室,杭州,310058
  2. 浙江省建筑设计研究院,杭州,310006
- 作者简介：
- 基金信息：
- DOI：
  CLC： TU443
- Online First：17 January 2012，
  
  Published：2012
- 稿件说明：
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LI Ying, GONG Xiao-nan. Experimental research on effect of electrode spacing on electro-osmotic dewatering under same voltage gradient[J]. 2012, 33(1).
DOI：

LI Ying, GONG Xiao-nan. Experimental research on effect of electrode spacing on electro-osmotic dewatering under same voltage gradient[J]. 2012, 33(1). DOI：

摘要

通过室内1:5的模型试验进行了等电势梯度下2 m×1 m和1 m×0.5 m两种工程常见矩形布置电极间距下的软黏土电渗性状的研究。利用监测排水量、排水速率、电流、电势、含水率和pH值等指标，对不同电极间距试样的电渗处理效果、能量效率和电极腐蚀等方面进行了分析。结果表明：保持电势梯度不变而减半电极间距能够加快电渗排水，降低土体含水率，减小能量消耗和电极界面电阻，但也会导致土体pH值变化和阳极腐蚀量的增大。此外，采用较小的电极间距可使损失在电极和土接触面上的电势降减小，但损失的电势降占电源电压的比例增大。

Abstract

A 1:5 scaled model test is conducted in order to find a simple and feasible technical means to improve electro-osmotic efficiency in soft clay foundation. The test program involves two different electrode spacings which are 2m×1m and 1m×0.5m. By monitoring drainage

current intensity

voltage

water content and soil pH values

two tests are compared in terms of treatment effect

energy efficiency and electrodes corrosion. The results show that: halving the electrode spacing and keeping the voltage gradient could improve electro-osmotic treatment efficiency effectively including faster drainage rate

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