软黏土含水量与含盐量影响电渗效率的试验研究

Experimental Study on Influence of Water Content and Salt Content of Soft Clay on Electro-osmotic Efficiency

电渗效率的有效评价可以准确反映土体的加固效果。本文采用杭州软黏土,基于不同初始含水量与含盐量研究电渗效率,主要从电渗运移量和能耗系数两方面展开分析。研究结果表明:对于不同含水量试验,电渗运移量的曲线随时间始终沿某一条直线上下波动,且含水量越高,对应的直线越低,能耗系数均随时间先降低后维持稳定;对于不同含盐量试验,电渗运移量的曲线在试验前期随时间沿某条直线上下波动,在试验后期逐渐减小,能耗系数均随时间缓慢增大;在其他条件相同的情况下,处理相同体积的土体,电渗法电能损耗随着含水量的增大而降低,随着含盐量的增大而增高。

Effective evaluation of the electro-Osmotic efficiency can accurately reflect the reinforcement effect of soil.Electro-osmotic efficiency of Hangzhou soft clay was investigated on the basis of different initial water content and salt content.Electro-osmotic transport and the coefficient of energy consumption were analyzed.The results showed that:For different water content,the curve of Electro-osmotic transport always fluctuates along a straight line,and the higher the water content is,the lower the corresponding straight line,and the energy consumption decreases with time and maintain stability;For different salt content tests,the curve of Electro-osmotic transport fluctuates along a certain line at the beginning of the experiment,and decreases gradually in the later period of the experiment,and the energy consumption increases slowly with time.For the same volume of soil under the same conditions,electro-osmotic energy loss decreases with the increase of water content,and increases with the increase of salt content.