论文部分内容阅读
利用岩土工程有限元软件PLAXIS对软土地区加筋路堤的加筋效果和机理进行分析,探讨了土工格栅轴向刚度EA的大小和加筋层间距、部位等因素对加筋材料的内力分布、路堤坡脚水平位移、路基中心竖向位移的影响规律。结果表明:土工格栅能有效地抑制地基的侧向位移,对地基沉降起到均化作用,并能有效抑制路基坡脚外的隆起量,提高路基的稳定性。在路堤底部布设间距较小,刚度较大的格栅能显著的增强加筋效果。
The geotechnical finite element software PLAXIS is used to analyze the reinforcement effect and mechanism of the reinforced embankment in soft soil area. The effects of the factors such as the size of the axial stiffness EA of the geogrid and the spacing and location of the stiffened layer on the internal force of the stiffened material Distribution, the horizontal displacement of embankment slope footing and the vertical displacement of embankment center. The results show that the geogrid can effectively restrain the lateral displacement of the foundation and equalize the foundation settlement, and can effectively restrain the outburst of the foot of the roadbed and improve the stability of the roadbed. Arranged at the bottom of the embankment spacing smaller, more rigid grille can significantly enhance the reinforcement effect.