Effects of frictional forces acting on sidewalls of buried box culverts

Junsuk Kang, Frazier Parker, Young Jong Kang, Chai H. Yoo

Research output: Contribution to journalArticle

22 Citations (Scopus)

Abstract

The effects of frictional forces acting on the sidewalls of buried box culverts are presented as determined with finite element method (FEM) and detailed soil modelling. The possibility of reducing earth pressure on deeply buried concrete box culverts by the imperfect trench installation (ITI) method has been contemplated during the last several decades. There have been limited research results published primarily regarding the qualitative aspect of load reduction in ITIs. It was found during the course of this study that significant frictional forces develop along the sidewalls of box culverts and adjacent sidefills in ITIs. Current American Association of State Highway and Transportation Officials provisions do not consider these frictional forces, but they cannot be neglected in ITIs, as their effect is dominant. An optimum geometry for the soft zone in ITIs is presented to maximize earth load reductions. The soil-structure interaction at the box culvert-soil interface was found to have a significant effect on total earth pressure acting on the bottom slab. Predictor equations for earth load reduction rates were formulated for ITIs incorporating the optimum soft zone geometry based on the FEM.

Original languageEnglish
Pages (from-to)289-306
Number of pages18
JournalInternational Journal for Numerical and Analytical Methods in Geomechanics
Volume32
Issue number3
DOIs
Publication statusPublished - 2008 Feb 25

Fingerprint

Culverts
Earth (planet)
earth pressure
finite element method
culvert
geometry
soil-structure interaction
Soils
Finite element method
Soil structure interactions
trench
Geometry
slab
soil
road
Concretes
modeling
effect

Keywords

  • Box culverts
  • Embankment
  • Finite element method
  • Frictional force
  • Imperfect trench
  • Soil-structure interaction

ASJC Scopus subject areas

  • Geotechnical Engineering and Engineering Geology
  • Materials Science(all)
  • Mechanics of Materials
  • Computational Mechanics

Cite this

Effects of frictional forces acting on sidewalls of buried box culverts. / Kang, Junsuk; Parker, Frazier; Kang, Young Jong; Yoo, Chai H.

In: International Journal for Numerical and Analytical Methods in Geomechanics, Vol. 32, No. 3, 25.02.2008, p. 289-306.

Research output: Contribution to journalArticle

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