Geotechnical capacity calculators
Common soil capacities that feed the structural foundation tools — shallow bearing capacity (Vesić general equation), deep pile/pier axial capacity (skin friction + end bearing), laterally loaded pier/pole embedment (IBC 1807.3.2) and lateral earth pressure (Rankine at-rest / active / passive). Every equation, substitution, variable definition and code reference is shown in full.
Bearing Capacity
Shallow foundation ultimate & allowable bearing — Vesic general equation with shape/depth factors.
Open →Pile / Pier Capacity
Deep foundation axial capacity — skin friction + end bearing (alpha-clay / beta-sand).
Open →Lateral Pier / Pole
Embedment of a laterally loaded post/pole — IBC 1807.3.2 constrained & non-constrained.
Open →Lateral Earth Pressure
At-rest / active / passive Rankine resultants with surcharge & water table.
Open →