Saving and loading objects



In [1]:

    
import sfsimodels as sm
import geofound as gf

Define a soil



In [2]:

    
# Set the void ratio and specific gravity
sl = sm.Soil()
sl.phi = 32.0  # soil friction angle
sl.unit_dry_weight = 17.
sl.cohesion = 0.0  # Pa

Size the foundation using the geofound package



In [3]:

    
vertical_load = 800.
fos_target = 3.5
method = "meyerhoff"

fd = gf.size_footing_for_capacity(sl, vertical_load, fos_target, 
                                        method=method, length_to_width=2)
print("Foundation width %.2fm" % fd.width)
print("Foundation length: %.2fm" % fd.length)
print("Foundation depth: %.2fm" % fd.depth)









    



Foundation width 1.90m
Foundation length: 3.80m
Foundation depth: 0.00m

Calculate the capacity and actual factor of safety



In [4]:

    
# using Meyerhof (1963)
gf.capacity_meyerhof_1963(sl, fd)
print("Meyerhof (1963)")
print(" - q_ult: %.0fPa" % fd.q_ult)
print(" - FS actual: %.2f" % (fd.q_ult * fd.area / vertical_load))

# using Vesics (1975)
print("Vesics (1975)")
gf.capacity_vesics_1975(sl, fd)
print(" - q_ult: %.0fPa" % fd.q_ult)
print(" - FS actual: %.2f" % (fd.q_ult * fd.area / vertical_load))









    



Meyerhof (1963)
 - q_ult: 414Pa
 - FS actual: 3.73
Vesics (1975)
 - q_ult: 390Pa
 - FS actual: 3.52



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