ULTIMATE CAPACITY OF EARTH-COVERED SLABS

The results are discussed of 3 tests conducted on identical 1-way reinforced concrete slabs using water over a waterproof membrane to apply a uniform surface pressure under 3 conditions: with the test slab surface flush; with the slab surface one foot deep in a clay soil backfill; and with the slab surface one foot deep in a sand backfill. It was found that the redistribution of pressure on the test slab i.e. soil arching, caused an approximately 5-fold increase in the surface pressure at failure in the sand backfill test compared with the surface flush and clay backfill tests. Because of the nonuniform pressure distribution, the average pressure on the slab in the sand backfill test at failure was much larger than the ultimate capacity measured in the surface flush and clay backfill tests. Almost no soil arching occurred in the low shear strength clay backfill.

• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/issn/07339445
• Corporate Authors:

  American Society of Civil Engineers

  345 East 47th Street
  New York, NY  United States  10017-2398
• Authors:
  • Kiger, S A
• Publication Date: 1988-10

Media Info

• Features: Appendices; Figures; References;
• Pagination: p. 2343-56
• Serial:
  • Journal of Structural Engineering
  • Volume: 114
  • Issue Number: 10
  • Publisher: American Society of Civil Engineers
  • ISSN: 0733-9445
  • Serial URL: http://ascelibrary.org/loi/jsendh

Subject/Index Terms

• TRT Terms: Arching (Soils); Backfilling; Breaking loads; Clay; Failure; Pressure; Reinforced concrete; Sand; Shear strength; Slabs
• Uncontrolled Terms: Pressure distribution
• Old TRIS Terms: Backfills
• Subject Areas: Bridges and other structures; Design; Highways; I20: Design and Planning of Transport Infrastructure;

Filing Info

• Accession Number: 00476267
• Record Type: Publication
• Files: TRIS
• Created Date: Sep 30 1988 12:00AM