PERFORMANCE OF A LARGE CORRUGATED STEEL CULVERT

Because few published field data exist to help in the development and evaluation of design criteria for large buried structures, a construction project involving such a structure was instrumented in Thunder Bay, Ontario. The structure was a shallow-buried, elliptical, corrugated-steel pipe with a 16-ft (4.9-m) height and a 27-ft (8.2-m) span. A concrete relief slab was placed on the fill several feet (meters) over the crown to distribute the vehicle loads. Pressures around the structure and under the slab were measured by using embedded stress gauges. Horizontal and vertical extensometers measured strains in the backfill. Radial extensometers inside the structure provided the structural deformation pattern. Data was obtained during construction and during live load tests with heavy vehicles. The results provided information on the magnitudes and distribution of stresses and deformations, the influence of construction procedures, and the apparent moduli of the backfill. Even though the cover over the structure provided by the backfill and slab was only about 20 percent of the span, the deflections and stresses in the pipe from the heavy vehicle loads were much smaller than those produced by the dead weight of material placed over the crown. Many cycles of live loading were required before the culvert system began to respond elastically to the loading. The final soil pressure distribution around the structure and the observed deflections were greatly influenced by the construction procedures.

Media Info

  • Media Type: Print
  • Features: Figures; Photos; References; Tables;
  • Pagination: pp 62-76
  • Monograph Title: SOIL AND ROCK MECHANICS, CULVERTS AND COMPACTION
  • Serial:

Subject/Index Terms

Filing Info

  • Accession Number: 00129493
  • Record Type: Publication
  • ISBN: 0309024536
  • Files: TRIS, TRB
  • Created Date: Mar 10 1976 12:00AM