Geoengineer.org Apps

Insert all input on the left, and click "calculate". Output is shown on the right.

ER:

Cs:

Cr:

Cb:

Ce:

D/B:

Effective unit weight (kN/m^3):

Applied Factor of Safety:

Allowable settlement (mm):

Foundation Width (m):

Click the orange button to expand the input list, enter your desired values, and press Calculate

Shallow Foundation Design using SPT blowcounts

N60:

Depth of interest (m):

Vertical effective stress (kPa):

Liao&Witman depth correction factor:

N1,60:

Using Hatanaka & Uchida (1996), Mayne (2001) equation

Friction angle (degrees):

Ngamma (Chen):

Ngamma (Brinch-Hansen):

Nq (same for all):

Ultimate capacity (kPa):

Allowable stress (kPa):

Using De Mello (1971), Schmertmann (1975) and Mayne (2001) equation

Friction angle (degrees):

Ngamma (Chen):

Ngamma (Brinch-Hansen):

Nq (same for all):

Ultimate capacity (kPa):

Allowable stress (kPa):

Using Empirical Meyerhof (1956) equation for bearing capacity

Ultimate capacity (kPa):

Allowable stress (kPa):

Using Burland & Burbridge (1984) Approach

Inducing mean-σ stress (KPa):

Inducing mean stress (kPa):

Inducing mean+σ stress (KPa):