成层软黏土地基一维电渗固结理论研究

摘要

针对成层软黏土地基电渗固结问题研究甚少，在Esrig一维固结理论的基础上，利用分层法结合差分法计算得出曲线模拟方程，并且建立了成层软黏土电渗固结理论，从而获得了孔压解析解，同时将双层软黏土的孔压值与在Esrig的固结理论下的各单层土的形成对比，得出了在距离阴极前半段内，成层土孔压变化趋势与第一层土相比偏慢，在距离阴极后半段内，成层土孔压变化趋势与第二层土相比偏快。最后通过分层法和平均法得出孔压的比较，进而得出了在工程实践中可以采用平均法来替代分层法的结论。%The study of the layered soft clay on electro-osmotic consolidation was seldom known. Using the hierarchical analytical method combined with finite difference method calculating curve simulation equation set up electro-osmotic consolidation theory and the pole pressure analytical value of layered soft clay, which was based on Esrig's one-dimension consolidation theory. at the same time,compared the pole pressure value of double soft clay with single layer soil on the Esrig consolidation theory, thus drawing a conclusion which was that the pore pressure of layered soil variation trend was slower than the first layer of soil in the first half to cathode distance, the pore pressure of layered soil change trend was faster than the second layer soil in the second half to cathode distance.Finally, contrasting the pore pressure under the hierarchical method and the average method and drawing a conclusion that hierarchical method could be replaced by average method in engineering practice.