AN EXPERIMENTAL STUDY OF LATERAL PRESSURES ON ABUTMENT RETAINING WALLS

THIS EXPERIMENTAL STUDY PRESENTS RESULTING LATERAL PRESSURES TRANSMITTED THROUGH THE SOIL TO AN ABUTMENT RETAINING WALL. THE LATERAL PRESSURES WERE DUE TO CONCENTRATED SURFACE WHEEL LOADS. TWO DISTINCT PROBLEMS WERE INVESTIGATED IN THIS STUDY. THE FIRST PROBLEM WAS TO DETERMINE THE VARIATION OF PRESSURE DUE TO VARIATION IN THE TYPE OF SOIL USED IN THE BACKFILL. THE INVESTIGATION OF PRESSURE VARIATION WAS CARRIED OUT BOTH IN THE SOIL AND AT THE SOIL-WALL INTERFACE, USING TWO TYPES OF SOIL - WELL-GRADED GRANULAR SOIL WITH CONSIDERABLE FINES, AND A UNIFORMLY GRADED MEDIUM SAND. THE RESULTS SHOW THE VARIATION IN PRESSURE WHICH COULD BE ATTRIBUTED TO THE DIFFERENCE IN SOIL CHARACTERISTICS. THE SECOND PROBLEM WAS TO DETERMINE THE VARIATION IN SOIL PRESSURE WITH RESPECT TO THE RELATIVE RIGIDITY OF WALL CONSTRUCTION. FOR THIS STUDY TWO TYPES OF ABUTMENT RETAINING WALLS WERE USED AND COMPARED. IN EACH PHASE OF THE INVESTIGATION THE RESULTING EXPERIMENTAL PRESSURES WERE COMPARED WITH THE THEORETICAL BOUSSINESQ SOLUTION OF LATERAL PRESSURES TRANSMITTED THROUGH AN ELASTIC, HOMOGENEOUS, ISOTROPIC, SEMI-INFINITE MEDIA. THE RESULTS INDICATE THAT THE PRESSURES AT THE SOIL-WALL INTERFACE WERE LARGER THAN THE PRESSURES MEASURED IN THE SOIL. THIS INCREASE IN PRESSURE WAS DUE TO THE DISCONTINUITY IN THE SOIL MASS RESULTING FROM THE ABUTMENT RETAINING WALL. THE RESULTS ALSO INDICATE THE EFFECT OF FLEXIBILITY OF THE WALL ON THE LATERAL PRESSURE AT THE SOIL-WALL INTERFACE. /AUTHOR/

Language

  • English

Media Info

  • Media Type: Print
  • Features: Figures; References; Tables;
  • Pagination: pp 19-43
  • Monograph Title: Soil stresses; Foundation settlement; Caisson Stability
  • Serial:

Subject/Index Terms

Filing Info

  • Accession Number: 00230518
  • Record Type: Publication
  • Files: TRIS, TRB
  • Created Date: Aug 15 2004 2:40AM