Civil engineering and structures
Vertical soil stress
Calculates simple vertical soil stress from unit weight and depth.
Related calculators
Simple lateral earth pressure
Simplified lateral pressure calculator from coefficient, unit weight, and depth; it is not code-based retaining-wall design.
Soil unit weight
Calculates soil unit weight as sample weight divided by sample volume.
Bearing capacity with manual factors
Calculates q_ult = c*Nc + q*Nq + 0.5*gamma*B*Ngamma from manually supplied factors and multipliers.
Boussinesq point-load stress
Calculates vertical stress σ_z below a point load P at radial distance r and depth z.
U to T_v consolidation approximation
Calculates approximate T_v from U: for U <= 0.60 it uses (pi/4)*U^2, for larger U it uses -0.933*log10(1-U)-0.085.
Consolidation time factor
Calculates T_v = c_v*t/H_dr^2 and inverse modes for time, c_v, and drainage path.