土工格栅横肋与纵肋加筋机理研究
作者:
作者单位:

作者简介:

通讯作者:

中图分类号:

基金项目:


Reinforcement Mechanism of Transverse and Longitudinal Geogrid Ribs
Author:
Affiliation:

Fund Project:

  • 摘要
  • |
  • 图/表
  • |
  • 访问统计
  • |
  • 参考文献
  • |
  • 相似文献
  • |
  • 引证文献
  • |
  • 资源附件
  • |
  • 文章评论
    摘要:

    通过室内格栅横、纵肋独立拉拔试验,针对不同的法向荷载和拉拔速度,分别对土工格栅横肋与纵肋的加筋机理进行了研究.结果表明:格栅纵肋所产生的摩擦阻力在拉拔初期迅速增大,并且随着有效应力的增大呈线性增长趋势,拉拔速率对其影响并不大;格栅横肋所产生的被动阻力增长相对较缓,在达到最大值之前需要一定的筋土相对位移,并且随着有效应力和拉拔速率的增大,被动阻力变化明显,其破坏模式逐渐由冲剪破坏转为常规剪切破坏.

    Abstract:

    A series of experiments to investigate the reinforced mechanism of transverse and longitudinal ribs were conducted with newly developed individual rib pullout devices under various normal load and pullout velocity. By analyzing experimental data, some conclusions are made that the frictional resistance of longitudinal ribs rapidly increases in early time of the pullout test, which is enhanced with the increase of effective stress but not with pullout velocity. However, passive resistance generated by transverse ribs increases more slowly than frictional resistance, and certain displacement is necessary to reach its maximum. With the increase of effective stress and pullout velocity, the failure mechanism of passive resistance is changed from the punching failure mechanism to general shear failure mechanism.

    参考文献
    相似文献
    引证文献
引用本文

陈榕,郝冬雪,栾茂田,赵维.土工格栅横肋与纵肋加筋机理研究[J].建筑材料学报,2013,(3):544-548

复制
分享
文章指标
  • 点击次数:
  • 下载次数:
  • HTML阅读次数:
  • 引用次数:
历史
  • 收稿日期:
  • 最后修改日期:
  • 录用日期:
  • 在线发布日期: 2013-07-15
  • 出版日期: