土工织物加固高速公路软基的有限元分析

运用弹塑性理论和有限元法，采取试算分析的办法，确立了选取计算城范围和确定边界条件的原则，在此基础上，探讨了土工织物的水平向加筋，得到了如下 结论：由土工我成的水平向加筋体能均化地基浅部应力，消减路堤坡脚处的剪应力集中现象，且能隔离上，下土体，从而防止路堤发生“由表及里”的渐进性破坏。

FINITE ELEMENT ANALYSIS OF GEOTEXTILE USED IN SOIL IMPROVEMENT ON FREEWAY

The principles determining the region and boundary conditions of the soft foundation in numeri-cal analyses have been represented in this paper. The numerical analyses made by FEM (finite elementmethod) show that the horizontal geotextile-reinforcement which separates the embankment from theroadbed can balance the stress in the shallow part of foundation and so it improves the stabllity of the em-bankment.