A REVISED AND EXTENDED FORMULA FOR BEARING CAPACITY

TERZAHI'S NOTATIONS ARE TO BE APPLIED TO THE SIMPLE FORMULA FOR THE BEARING CAPACITY OF A SHALLOW FOUNDATION DEVELOPED BY BUISMAN, CAQUOT AND TERZAGHI. THE EXACT FORMULAS FOR THE BEARING CAPACITY INDICATED BY PRANDTL ARE PRESENTED. HOWEVER, ACTUAL FOUNDATIOONS DEVIATE IN SEVERAL RESPECTS FROM THE SIMPLE CASE. APART FROM THE ECCENTRICITY WHICH IS BEST TAKEN INTO ACCOUNT BY CONSIDERING THE SO-CALLED EFFECTIVE FOUNDATION AREA, ALL THE OTHER INFLUENCES CAN BE EXPRESSED BY MEANS OF SUITABLE FACTORS TO THE THREE TERMS IN THE ORIGINAL FORMULA. EXAMPLES ARE GIVEN FOR EXTENDING THE FORMULA TO CALCULATE: EFFECTIVE FOUNDATION AREA, LOAD INCLINATION FACTORS, AND BASE AND GROUND INCLINATION. EXPERIMENTAL EVIDENCE MUST BE USED FOR THE SHAPE FACTORS, DEPTH EFFECTS AND DEPTH FACTORS. GENERAL FORMULAS ARE PRESENTED WITH MODIFICATIONS FOR CALCULATING PASSIVE EARTH PRESSURE AND MODIFYING FOR SPECIFIC SOIL PARAMETERS AND SAFETY FACTORS.

• Supplemental Notes:
  • Bull No 28, PP 5-11, 12 FIG
• Corporate Authors:

  Danish Geotechnical Institute

  1 Maglebjergvej
  DK-2800 Lyngby,   Denmark 
• Authors:
  • Hansen, J B
• Publication Date: 1970

Subject/Index Terms

• TRT Terms: Bearing capacity; Depth; Earth pressure; Formulas; Foundation soils; Foundations; Mathematical analysis; Safety factors; Shape; Soils; Terzaghi's rule
• Old TRIS Terms: Prandtl method for bearing capacity; Soil bearing capacity
• Subject Areas: Geotechnology; Highways; Safety and Human Factors;

Filing Info

• Accession Number: 00235747
• Record Type: Publication
• Files: TRIS
• Created Date: Sep 21 1970 12:00AM