中文摘要：

为了给软土地基的加固施工提供参考,针对土中易溶盐的不同分布位置对电渗固结效果影响不同的特点,使用CaCl2作为易溶盐,添加到经过前期洗盐、烘干、碎土等处理的温州滨海相软土中,配置成初始含水率为65%的重塑土,对其进行了室内一维电渗固结试验研究。试验结果表明：易溶盐的分布范围对电渗效果有明显的影响,含盐土体分布于阳极附近时的电渗效果要比其分布于阴极附近时好;电渗试验过程中,只有当离子浓度条件和电场条件均处于最佳状态时,电渗的排水速率才会达到最大,对电能的利用率才会最高;含盐土体分布于阳极附近时的电渗能效比要比其分布于阴极附近时大,但电渗初期、后期能效比波动较大,含盐土体位于近阴极时的电渗能效比变化较为平稳。

英文摘要：

To provide reference for reinforcement of soft soil foundation,based on the characteristic that the effects of different distribution locations of soluble salt in soil on electroosmotic consolidation are different,one-dimensional electro-osmosis laboratory test was carried out.After salt leaching,drying,pulverizing and a series of pre-preparation works on Wenzhou seashore soft soil,CaCl2 was injected as soluble salt to form the remolded soil with initial moisture content of 65%.The results show that different distribution ranges of soluble salt in soil have obvious influences on electro-osmotic consolidation.The saline area near the anode has better effects on electro-osmosis than that near the cathode.During the electro-osmosis test,only when the ion concentration and electric field conditions are both in the best states,the rate of electro-osmotic drainage and the utilization of electric power reach to the maximum.In addition,the saline area near the anode has higher energy efficiency ratio than that near the cathode,but the energy efficiency fluctuates largely in the initial and late period of electro-osmosis,while the change of energy efficiency ratio is much more stable when the soluble salt is injected near the cathode.