Bearing capacity from the SPT

What Nourin reads in the sheet

• The N, N₆₀ and N₁₍₆₀₎ profile corrected by CiviLab;
• The foundation geometry: width B and embedment depth D;
• The applied service load and the project unit system;

What Nourin does with it

• Calculates the allowable capacity for 25 mm settlement according to Meyerhof (1956) and Bowles (1977);
• Applies the depth factor K_d = min(1 + 0.33 D/B ; 1.33);
• Estimates settlement under the service load by inverting the Meyerhof relation;
• Derives the friction angle φ' according to Hatanaka and Uchida (1996);
• Estimates the undrained cohesion S_u according to Stroud (1974) and Hara et al. (1974);

References