This Technical Note addresses an issue of vertical drains simulation using linear drain elements for radial consolidation. A new method is proposed which enables the application of linear drain elements while maintaining acceptable accuracy. The robustness of the proposed method is examined satisfactorily through the simulation of a unit cell representing a single drain and the application of multi-drain condition for the Ballina Embankment considering both elastic and elasto-plastic soil domains. The proposed model shows that the settlement and excess pore pressure predictions are almost the same as those determined for the ideal. The effectiveness of this method is also demonstrated through the reduction of the numerical convergence time for both unit cell and multi-drain conditions.

本技术说明解决了使用线性排水元件进行径向固结的垂直排水模拟的问题。提出了一种新方法，该方法能够在保持可接受的精度的同时应用线性漏极元件。通过模拟代表单排水的单元格以及在考虑弹性和弹塑性土域的巴利纳路堤中多排水条件的应用，令人满意地检验了所提出方法的鲁棒性。所提出的模型表明沉降和超孔隙压力的预测与理想值的预测几乎相同。通过减少单位晶胞和多漏极条件的数值收敛时间，也证明了该方法的有效性。