def test_from_encn452_2013():
"""
Values from HW#7 crib ENCN452 course 2013
"""
length = 6.0 # actually a strip in
width = 3.0
depth = 1.5
phi = 0.0
cohesion = 40.0
unit_dry_weight = 18.0
sl = geofound.create_soil(phi, cohesion, unit_dry_weight)
fd = geofound.create_foundation(length, width, depth)
geofound.capacity_terzaghi_1943(sl, fd, verbose=0)
geofound.capacity_vesics_1975(sl, fd, verbose=0)
assert np.isclose(fd.q_ult, 298.0, rtol=0.001)
def test_very_short_foundation_w_vesics():
length = 0.265 # actually a strip in
width = 4.7
depth = 2.24
fd = geofound.create_foundation(length, width, depth)
width = 0.265
length = 4.7
fdo = geofound.create_foundation(length, width, depth)
phi = 32.0
cohesion = 0.0
unit_dry_weight = 14943.15
sl = geofound.create_soil(phi, cohesion, unit_dry_weight)
q_ult = geofound.capacity_vesics_1975(sl, fd)
q_ulto = geofound.capacity_vesics_1975(sl, fdo)
assert np.isclose(q_ult, q_ulto, rtol=0.001)
def test_vesics():
"""
values from: Gunaratne, Manjriker. 2006. "Spread Footings: Analysis and Design."
"""
length = 2
width = 2
depth = 1
phi = 35
cohesion = 0
unit_dry_weight = 17
sl = geofound.create_soil(phi, cohesion, unit_dry_weight)
fd = geofound.create_foundation(length, width, depth)
geofound.capacity_vesics_1975(sl, fd, verbose=0)
assert np.isclose(fd.nc_factor, 46.1, rtol=0.001)
assert np.isclose(fd.nq_factor, 33.3, rtol=0.001)
assert np.isclose(fd.ng_factor, 48.0, rtol=0.001)
assert np.isclose(fd.q_ult, 1574.8, rtol=0.001)