Stability analysis on long-span buried corrugated-steel-plate pipe culverts
LIUBaodong
LI Peng
GAOMeng
LIUPengfei
ZHANGZhenan
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.
Keywords：corrugated-steel-plate pipe culvertstabilitybuckling analysisconstruction processfinite element
Publication Date：2016-01-01
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：5( 14-18 )