#
HoekBrown
Define a Hoek-Brown material.
#
Parameters
- name : str
- String naming the material.
- color : Color
- Material appearance. color=rgb(108,150,174)
- drainage : str
- Material drainage type. drainage = 'drained_undrained', 'always_drained', 'non_porous'
- cavitation_cutoff : str
- cavitation_cutoff = 'no' or 'yes'
- pcav : float
- Cavitation pressure in kPa.
- E : float
- Young's Modulus, in MPa.
- nu : float
- Poisson's ratio.
- GSI : float
- Geological Strength Index.
- sigma_ci : float
- Intact compressive strength.
- m_i : float
- Material constant.
- D : float
- Disturbance factor.
- gamma_dry : float
- Dry unit weight in kN/m^3
- gamma_sat : float
- Saturated unit weight in kN/m^3
- K0 : float
- Earth pressure coefficient at rest.
- sigma_0 : float
- Inital stress, in kPa.
- hydraulic_conductivity_option : str
- hydraulic_conductivity_option = 'isotropic' or 'anisotropic'
- K : float
- Hydraulic conductivity, in m/day.
- Kx : float
- Hydraulic conductivity in x, in m/day.
- Ky : float
- Hydraulic conductivity in y, in m/day.
- Kz : float
- Hydraulic conductivity in z, in m/day.
- hydraulic_model : str
- hydraulic_model = 'basic' or 'van_genuchten'
- e : float
- Void ratio.
- alpha : float
- Model parameter related to the air entry pressure.
- n : float
- Model parameter related to the rate at which water is extracted from the soil once the air entry pressure has been exceeded.
- Sr : float
- Residual degree of saturation (may be slightly greater than 0).
- Ss : float
- Fraction of water filled pores at full saturation (may be slightly less than 1).
- reducible_strength : str
- Apply reducible strength. reducible_strength = 'yes' or 'no'
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Examples
i = 8
model2d.add_rectangle([i,0],[i+1,2])
Face = model2d.select(p0=[i+0.5,1],types='face')
HoekBrownMaterial = prj.HoekBrown(name='HoekBrownMaterial',
color=rgb(108,150,174),
drainage = 'drained_undrained',
cavitation_cutoff='yes',
pcav=100,
E=1000,
nu=0.25,
GSI=25,
sigma_ci= 10000,
m_i=8,
D=0,
gamma_dry=18,
gamma_sat=20,
K0=0.58,
hydraulic_conductivity_option='anisotropic',
K=0.001,
Kx=0.001,
Ky=0.001,
Kz=0.001,
hydraulic_model='van_genuchten',
e=1,
alpha=2,
n=2,
Sr=0,
Ss=1,
reducible_strength='yes',
)
model2d.set_solid(shapes=Face,material=HoekBrownMaterial)