EFFECTS OF HEAVY-LOAD TRAFFIC ON A SHALLOW-BURIED FLEXIBLE PIPE

A 12-FT LONG, 12-INCH DIAMETER, 16-GAGE CORRUGATED METAL PIPE WAS INSTALLED IN A TRENCH, COVERED WITH 16 INCHES OF MATERIAL (1 INCH LAYER OF COLD-MIX ASPHALT, 5 INCHES OF CRUSHED LIMESTONE BASE COURSE, AND 10 INCHES OF LEAN CLAY), AND SUBJECTED TO 350 COVERAGES OF A 50,000-LB SINGLE-WHEEL LOAD TO DETERMINE THE EFFECTS OF THIS SIMULATED AIRCRAFT TRAFFIC ON A SHALLOW DRAINAGE-PIPE INSTALLATION. TWO SETS OF DEFLECTION GAGES WERE PLACED IN THE TEST PIPE, ONE AT THE MIDPOINT AND THE OTHER NEAR ONE END OF THE PIPE. EACH SET CONSISTED OF TWO GAGES, ONE FOR MEASURING VERTICAL DEFLECTION OF THE PIPE, THE OTHER FOR MEASURING HORIZONTAL DEFLECTIONS. DURING THE TESTS, FOUR TYPES OF DEFLECTION DATA WERE OBTAINED: (1) DEFLECTION OF THE PAVEMENT OVER THE PIPE, (2) PERMANENT DEFORMATION OF THE PIPE RESULTING FROM APPLICATION OF TRAFFIC, (3) DEFLECTION OF THE PIPE RESULTING FROM STATIONING THE LOAD WHEEL (STATICALLY) DIRECTLY OVER THE DEFLECTION GAGES, AND (4) DEFLECTIONS OF THE PIPE RESULTING FROM THE LOAD WHEEL PASSING (DYNAMICALLY) OVER THE DEFLECTION GAGES. /AUTHOR/

• Record URL:
  https://onlinepubs.trb.org/Onlinepubs/hrbproceedings/39/39-022.pdf
• Supplemental Notes:
  • Vol 39, pp 372-384, 12 FIG, 5 TAB. Distribution, posting, or copying of this PDF is strictly prohibited without written permission of the Transportation Research Board of the National Academy of Sciences. Unless otherwise indicated, all materials in this PDF are copyrighted by the National Academy of Sciences. Copyright © National Academy of Sciences. All rights reserved.
• Authors:
  • Ahlvin, R G
• Publication Date: 1960

Media Info

• Media Type: Digital/other
• Monograph Title: Proceedings of the Thirty-Ninth Annual Meeting of the Highway Research Board, Washington, D.C., January 11-15, 1960
• Serial:
  • Highway Research Board Proceedings
  • Volume: 39
  • Publisher: Highway Research Board

Subject/Index Terms

• TRT Terms: Aircraft; Clay; Cold mix paving mixtures; Corrugated metal culverts; Crushed limestone; Deflection; Deflection tests; Deformation; Drainage structures; Flexibility; Measuring instruments; Pavements; Pipe; Simulation; Traffic; Trenches; Wheel loads
• Old TRIS Terms: Lean clays; Pavement deflection
• Subject Areas: Aviation; Geotechnology; Highways; Materials; Operations and Traffic Management; Pavements; Vehicles and Equipment;

Filing Info

• Accession Number: 00216427
• Record Type: Publication
• Files: TRIS, TRB
• Created Date: Dec 9 1994 12:00AM