泥石流冲击桥梁2019年度研究进展
作者:
作者单位:

作者简介:

通讯作者:

中图分类号:

U445.7

基金项目:

四川省重点研发项目(2019YFG0460);国家自然科学基金(51478400)


State-of-the-art review of debris flow impact forces on bridges in 2019
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:

    随着中国经济建设的发展,山区公路、铁路桥梁越来越多,其中有很大一部分位于不良地质区。泥石流灾害及其诱发的次生灾害是山区桥梁主要灾害之一,即将开建的川藏铁路桥梁工程也面临泥石流的威胁。当前,对泥石流冲击桥梁结构方面的研究相对较少,为促进对该方向更加深入的研究,综述了近两年关于泥石流冲击桥梁研究的新进展,从研究方法、泥石流冲击力以及桥梁防灾3个方面进行回顾总结。研究发现,在泥石流冲击桥梁研究方面,应跨学科联合研究,对多个泥石流损坏桥梁的案例进行研究,结合试验和数值模拟制定简化的泥石流冲击桥梁结构的荷载分布形式,并进一步研究大块石对桥梁结构的作用,加强对泥石流中块石冲击作用的研究。

    Abstract:

    With the development of national economic construction, there are more and more mountain highway and railway bridges, and a large part of them are locate in bad geological areas. Debris flow disasters and the secondary disasters induced by them are one of the major disasters of mountain bridges. The upcoming Sichuan-Tibet railway bridges will be also faced the threat of debris flow. At present, there are relatively few studies reviewed three aspects of the influence of debris flow impacting bridges at home and abroad. In order to promote more in-depth research in this direction, this paper briefly reviews the three aspects of debris flow impacting bridges at home and abroad in the past two years, including research methods, debris flow impact force and bridge disaster prevention.Finally, it was proposed that interdisciplinary joint research should be conducted in the study of debris flow impact bridges. Multiple cases of debris flow damage bridges should be studied. The simplified debris flow impact bridge structure load should be combined with tests and numerical simulations. The focus should be on the effect of large stones on the bridge structure and strengthen research on the impact of debris flow.

    参考文献
    相似文献
    引证文献
引用本文

姚昌荣,王友彪,李亚东,强斌,刘赛智.泥石流冲击桥梁2019年度研究进展[J].土木与环境工程学报(中英文),2020,42(5):28-36.

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:2020-04-03
  • 最后修改日期:
  • 录用日期:
  • 在线发布日期: 2020-11-12
  • 出版日期: