Experimental study on relationship between hydraulic head pressure and voltage in electro-osmotic technology
Electro-osmotic waterproofing technology is a new type of waterproofing technology,which has the characteristics of low mainte-nance cost and wide application range.This article used the electro-osmosis method to experimentally determine the drainage rate,elec-trode potential drop,effective potential,and its utilization rate of four different soil samples under different voltages and electric potential gradients indoors.The influence of hydraulic head pressure and voltage on electro-osmosis was analyzed.The research results indicate that the higher the voltage,the greater the electrode potential drop,the lower the effective potential and utilization rate,and the faster the atten-uation of effective potential utilization rate;under the same hydraulic gradient,as the hydraulic permeability coefficient increases,the elec-tro osmotic drainage rate also gradually increases.Moreover,when the ratio of electric potential gradient to hydraulic gradient approaches the value of k(the ratio of hydraulic permeability coefficient to electro-osmosis coefficient),the electro-osmotic waterproofing is success-ful.This study can provide guidance for the engineering application of electro-osmosis technology.
electro-osmosishydraulic head pressurevoltagepotential gradientdrainage rate
万方数据
维普
