Abstract: How to accelerate the seepage rate of water in model test is significant to the study of bank landslide. Based on the principle of electromagnetism, the force of pore water was calculated by applying mutually perpendicular electric and magnetic fields in the landslide model. According to the theory of electroosmotic consolidation, the resultant force of groundwater is calculated, and the relationship between the migration rate and the voltage and magnetic field intensity is deduced, then the time similarity ratio is obtained. The water migration rate of landslide model is improved by controlling the voltage and magnetic field strength applied to the model, and the effect of the electromagnetic field on the soil moisture is verified by experiments. The influence of electromagnetic field significantly affects the water migration velocity, and the voltage has little effect on the stable seepage field of the model. Without changing the parameters of model material, the changes of the magnetic field strength and voltage can determine the seepage velocity of any pore water lays which can be the foundation for studying the evolution mechanism of the landslide under fluctuating reservoir water conditions.

Key words: water level fluctuation, electro-osmosis, electromagnetic drive, model test