土工基础

›› 2011, Vol. 25 ›› Issue (5): 53-56.

• 工程实录 • 上一篇    下一篇

基于渐近均匀化理论的格栅加筋路堤沉降计算

 马 立, 马石城    

  1. （湘潭大学土木工程与力学学院，湖南湘潭 411105）

  • 收稿日期:2011-01-05 出版日期:2011-10-20 发布日期:2011-11-23
  • 作者简介:马立，男，1984年生，研究生，主要从事地基处理方面的研究。

Settlement Analysis of Geogrid Reinforced Embankments Basedon the Theory of Asymptotic Homogenization

MA  Li， MA  Shi  cheng   

  1. (College of Civil Engineering and Mechanics, Xiangtan University, Xiangtan    Hunan 411105, China)
  • Received:2011-01-05 Online:2011-10-20 Published:2011-11-23

摘要： 土工格栅作为特种土工合成材料的一种，由于将其加入路基土中后能有效降低路基整体沉降和不均匀沉降，已在交通工程中发挥着重要作用。将渐近均匀化理论运用到土工格栅加筋路堤沉降计算中，所得结果与已有实测值对比表明，该法计算土工格栅加筋路堤的沉降是可行的，从而提供了一种计算水平向增强体(土工格栅)复合地基沉降的新方法；该方法与现行沉降计算方法相比，步骤简单，方便实用。此外，分析沉降变形影响因素，可兼顾施工简便性和土工格栅生产工艺要求而得出路堤最佳加筋方案，为工程应用提供理论参考。

关键词: 土工格栅加筋路堤, 渐近均匀化方法, 沉降计算, 等效模量

Abstract: Geogrid has played an important role in transportation engineering. When it is applied into weak subgrade soils, both the overall and differential settlements of the subgrade soils can be effectively reduced. The settlement of geogrid reinforced embankments is analyzed by using the asymptotic homogenization theory. It is concluded that this method provides a new approach to settlement prediction of the geogrid reinforced soil mass. The method is simple, convenient and practical. The approach provides the theoretical basis for engineering applications by considering the construction practices and engineering properties of the geogrid that impact settlement.