水力发电学报2024，Vol.43Issue(6)：33-42,10.DOI:10.11660/slfdxb.20240604
环境化学条件对软土电渗排水影响的试验研究
Experimental study of effect of geochemical conditions on electro-osmotic consolidation of soft soils
摘要
Abstract
Electro-osmotic consolidation is a promising method to treat soft soils.A series of experiments are conducted in this study to investigate the influence of soil pH value and salinity on the electro-osmotic consolidating process of soil.The coefficients of electro-osmotic permeability,total volume of the discharged water,drainage rate,and water content are obtained,verifying the coefficient of electro-osmotic permeability and Zeta potential are affected significantly by soil pH value.It is practicable to predict the coefficient of electro-osmotic permeability,which increases with the initial soil pH value,by measuring zeta potential.For the samples with higher initial soil pH value,water content after the experiment is decreasing near the anode and increasing near the cathode.As soil salinity increases,the electro-osmotic permeability and drainage rate are both decreasing,while energy consumption is increasing.This study indicates that the soft soil with low salinity and high pH value is favourable for electro-osmotic consolidation.关键词
电渗加固/电渗系数/土体pH值/土体盐度/软土Key words
electro-osmotic consolidation/coefficient of electro-osmotic permeability/soil pH value/soil salinity/soft soil分类
土木建筑引用本文复制引用
张林,胡黎明..环境化学条件对软土电渗排水影响的试验研究[J].水力发电学报,2024,43(6):33-42,10.基金项目
国家自然科学基金资助项目(51979144) （51979144）
清华大学水沙科学与水利水电工程国家重点实验室开放基金(sklhse-2022-D-02) （sklhse-2022-D-02）
中央高校基本科研业务费专项资金资助(2022MS050) （2022MS050）
