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General Concepts / October 1, 2021

Foundation Ground Conditions

The values and properties indicated in the table below can also be used instead of the bearing capaicty equations above. These values are given only as estimated values for preliminary analysis, for its respective soil materials. The values should only be used for scheme design calculations. Soil Material SPT, N Value Undrained shear strength, C (kN/m^2) Assumed […]

The values and properties indicated in the table below can also be used instead of the bearing capaicty equations above. These values are given only as estimated values for preliminary analysis, for its respective soil materials. The values should only be used for scheme design calculations.

Soil MaterialSPT, N ValueUndrained shear strength, C (kN/m^2)Assumed Bearing Capacity, qallow
SandN 10N or 10N/2 if submerged
Stiff Clay C5.14 C/3
RockN 10N or assumed 3000 kPa with FOS = 3