铁道标准设计2016，Vol.60Issue(7)：9-13,5.DOI:10.13238/j.issn.1004-2954.2016.07.003
土工格栅加固膨胀土路堤边坡稳定性的试验分析
Experimental Analysis of Embankment Slope of Expansive Soil Strengthened by Geogrid
渠孟飞 1谢强 1赵文 1曹新文2
作者信息
- 1. 西南交通大学地球科学与环境工程学院，成都 610031
- 2. 西南交通大学土木工程学院，成都 610031
- 折叠
摘要
Abstract
Centrifuge tests and numerical simulation method are used to study the stability of embankment of expansive soil strengthened by geogrid and obtain design parameters for different failure modes of the embankment slopes. The research results with different reinforcing programs ( vertical interval 0. 5 m and 1m) show that (1) where the center banking is 10. 9 m with slope ratio 1 ∶ 1. 5, the non reinforced embankment tends to be unstable under natural conditions;(2) when the slope only has shallow failure problem, the stability can be guaranteed by laying 4 meter length and 0. 6~0. 8 meter interval geogrid;(3) when the slope has overall stability problem, only the geogrid is extended or in full length, the stability of the embankment slope can meet the requirement. Geogrid is effective in reinforcing the road embankment and will be used in the practical engineering widely.关键词
膨胀土路堤/土工格栅/离心试验/数值模拟Key words
Expansive soil embankment/Geogrid/Centrifuge test/Numerical simulation分类
交通工程引用本文复制引用
渠孟飞,谢强,赵文,曹新文..土工格栅加固膨胀土路堤边坡稳定性的试验分析[J].铁道标准设计,2016,60(7):9-13,5.
