PERFORMANCE OF A REINFORCED CONCRETE PIPE CULVERT UNDER ROCK EMBANKMENT

A 48-IN. DIAMETER REINFORCED CONCRETE PIPE INSTALLATION HAS BEEN STUDIED TO EVALUATE THE PERFORMANCE OF BOTH TYPES OF BEDDING CONDITIONS CURRENTLY USED BY THE KENTUCKY DEPARTMENT OF HIGHWAYS. A PORTION OF THE PIPE WAS LAID USING KENTUCKY,S STANDARD B BEDDING. THE REMAINDER OF THE PIPE CULVERT WAS LAID USING THE IMPERFECT TRENCH BEDDING. THE DESIGN HEIGHT OF THE FILL (36 FT) WAS SUFFICIENT TO REQUIRE THE IMPERFECT TRENCH CONSTRUCTION. THE EMBANKMENT WAS PRIMARILY OF A ROCK FILL MATERIAL, WITH THE LARGEST PARTICLE SIZE LIMITED TO A MAXIMUM OF 3 FT. THE PORTION OF THE PIPE WITH THE STANDARD B BEDDING EXHIBITED STRESS IN RELATION TO EACH ADDITIONAL HEIGHT OF EMBANKMENT PLACED. FOR EVERY FILL INCREMENT,THERE WAS A CORRESPONDING CHANGE IN THE VERTICAL AND HORIZONTAL DIAMETERS OF THE PIPE AND IN THE PIPE DISTRESS AS EVIDENCED BY CRACKING. THE ABSENCE OF SIGNS OF DISTRESS IN THE IMPERFECT TRENCH BEDDING PORTION INDICATES THAT THE IMPERFECT TRENCH PERFORMED ITS PURPOSE OF RELIEVING LOAD ON THE PIPE. /AUTHOR/

Media Info

  • Media Type: Print
  • Features: Appendices; Figures; References;
  • Pagination: pp 14-28
  • Monograph Title: Pipes and culverts
  • Serial:

Subject/Index Terms

Filing Info

  • Accession Number: 00204222
  • Record Type: Publication
  • Files: TRIS, TRB
  • Created Date: Aug 4 1994 12:00AM