考虑酸碱迁移的电渗一维固结计算方法

电渗法和常规的软土地基处理方法相比具有独特的优越性。在Esrig一维电渗的基础上考虑了酸碱离子迁移,同时基于电荷守恒原理、质量守恒原理、达西定律以及欧姆定律等定律建立电渗固结方程组。通过对数值解和室内试验结果进行比较分析,得到了:电势随时间减少,但是减少量逐渐减小并趋于稳定;土体内部产生的负孔隙水压力并非如Esrig理论所述,到了峰值以后不再变化,而是会有一定程度的恢复。

One-dimensional computing method of electro-osmosis consolidationconsidering migration of acid and alkali

Comparing to the conventional soft soil treatment methods, electro-osmosis method has unique advantages. On the basis of the Esrig one-dimensional electro-osmotic principle and with the consideration of acid-alkali ion mobility, electro-osmotic consolidation equations were established in this paper. After the equations solved, the results were compared with that of the laboratory tests. We can learn from the comparison that although the potential decreased, the decrement diminished and tended towards stability. Besides, the final pore water pressure in the soil would change after it reached the summit, recovered to some extent.