STRENGTH AND DEFORMATION PROPERTIES OF SOILS AS DETERMINED BY A FREE FALLING WEIGHT

THE STRENGTH-DEFORMATION PROPERTIES OF COHESIONLESS SOILS (SANDS) UNDER DYNAMIC LOADING ARE DETERMINED BY MEASURING THE RETARDATION OF A FREE FALLING WEIGHT WHEN IT STRIKES THE SURFACE OF A SOIL MASS. THE REACTION FORCE ON THE WEIGHT IS CALCULATED FROM NEWTON'S SECOND LAW AND THE PENETRATION OF THE WEIGHT INTO THE UNDERLYING SOIL BY INTEGRATING TWICE THE RETARDATION-TIME RELATIONSHIPS WITH RESPECT TO TIME. THE LOAD-DEFORMATION RELATIONSHIPS AS DETERMINED BY THIS METHOD ARE COMPARED WITH THOSE FROM STATIC LOAD TESTS. THE TEST RESULTS INDICATE THAT THE DYNAMIC LOAD-DEFORMATION RELATIONSHIPS ARE AFFECTED MAINLY BY THE DRY UNIT WEIGHT OF THE SAND AND THAT A FREE FALLING WEIGHT CAN BE USED TO CHECK THE RELATIVE DENSITY AND THE DEGREE OF COMPACTION OF A PARTICULAR SOIL. /AUTHOR/

• Authors:
  • Orrje, O
  • Broms, B
• Conference:
  • Swedish Geotechnical Institute Proc
• Publication Date: 1970

Subject/Index Terms

• TRT Terms: Deformation; Density; Force; Free fall; Granular soils; Loads; Pendulum tests; Properties of materials; Sand; Soil compaction; Soils; Static loads; Strength of materials; Weight
• Uncontrolled Terms: Soil deformation; Soil properties
• Old TRIS Terms: Reaction; Retarding
• Subject Areas: Geotechnology; Highways; Materials;

Filing Info

• Accession Number: 00229933
• Record Type: Publication
• Report/Paper Numbers: No 23
• Files: TRIS
• Created Date: May 3 1971 12:00AM