Engineering Tools

Soil BearingCapacity

Calculate soil bearing capacity for foundation design. Determine allowable bearing pressure based on soil type and properties.

Bearing Capacity Analysis

Bearing Capacity Results

Allowable Capacity12,000psf
Ultimate Capacity36,000psf

Foundation Design

Cohesion (psf)2,000
Friction Angle35°
Soil Unit Weight120 pcf
Max Column Load108,000 lbs
Foundation TypeSpread Footing OK

Typical Values (psf)

  • Bedrock: 20,000-40,000
  • Gravel: 8,000-12,000
  • Sand (dense): 6,000-10,000
  • Clay (stiff): 4,000-8,000
  • Soft soil: < 2,000

SPT N-Values

  • 0-4: Very loose/soft
  • 4-10: Loose/medium
  • 10-30: Medium dense
  • 30-50: Dense
  • >50: Very dense

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