Experimental research on draining consolidation behavior of soda residue soil under vibration

On the basis of simulated draining condition of filter pressing on soda residue soil, the draining consolidation experiment is carried out under vibration by using the dynamic triaxialtester. Making a comparison between the results of hydrostatic pressure consolidation experiment and that of experiments under different confining pressure, amplitude and frequency, the vibration effect on consolidation behavior and drainage is analysed; and the draining mechanism under vibration is drawn. It is indicated by the experiments that the rate and amount of drainage can be obviously improve by vibration; and that the draining effect of soda residue soil is evidently affected by confining pressure, amplitude and frequency. Thereof, the cause that draining effect of existing filter-press technique is dissatisfactory on soda residue soil is analysed. The results of experiments and mechanism analysis are of guiding singificance and practical value for improving existing filter-press technique.