北京交通大学学报2016，Vol.40Issue(6)：14-18,5.DOI:10.11860/j.issn.1673-0291.2016.06.003
大跨径覆土波纹钢圆管涵稳定性分析
Stability analysis on long-span buried corrugated-steel-plate pipe culverts
摘要
Abstract
With the span’s increase of corrugated-steel-plate pipe culvert,it may lose stability be-fore the soil-structure interaction forms during construction stage.According to the 6 m-span pipe culvert engineering,this paper establishes finite element (FE)models and calculates the de-formed regularities.The validity is verified by comparing finite element model (FEM)results and measured value.An 8m-span pipe culvert is chosen as the FEM after comparing different bulking loads with different culverts’spans.The influence to structure’s bulking load can be simulated under basement,backfilling layer and large machinery on the crown separately.Results show that the stability of the structure largely decreased under inconformable requirements such as base-ment and backfilling conditions.Neither does large machinery on the top of the culvert during construction,when backfilling height is less than the minimum thickness of backfill.Structure’s stability can be enhanced by adding transverse(or declining)tension bar or adding bottom sup-port.The effects on enhancing stability are most significant when adding bottom support.关键词
波纹钢圆管涵/稳定性/屈曲分析/施工过程/有限元Key words
corrugated-steel-plate pipe culvert/stability/buckling analysis/construction process/finite element分类
交通工程引用本文复制引用
刘保东,李鹏,高锰,刘鹏飞,张哲南..大跨径覆土波纹钢圆管涵稳定性分析[J].北京交通大学学报,2016,40(6):14-18,5.基金项目
山东省交通运输科技计划项目资助(2015B31) （2015B31）
