碱渣土的振动排水固结特性试验研究

在土动三轴仪上模拟碱渣土压滤排水条件的基础上进行振动排水固结试验，根据不同固结压力、振幅和频率情况的试验与静压排水固结试验的比较，分析了振动排水固结特性以及振动排水效应，总结出振动排水的作用机制。试验表明，振动作用可明显地提高排水速度，增加排水量；固结压力、振幅和频率对碱渣土的振动排水效应产生明显影响。由此试验结果分析了现行碱渣土压滤技术脱水效果不佳的原因。给出的试验结果和振动排水的机制分析，对改进当前碱渣土压滤脱水技术及其工艺设计具有重要的指导意义和实用价值。

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 triaxial tester. 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.