Stress-strain state of the beds of pyramidal pile foundations

An upper stronger layer of soil with a pyramidal pile embedded in it represents an economic solution for foundation design for weak soils. The stress-strain state of the beds of single-row pile foundations formed from pyramidal piles within the framework of the combined problem of the theory of elasticity and plasticity for plane deformation is evaluated. A model of an elastoplastic medium is used and results are analyzed. The data cited indicates the expediency of the use of nonlinear methods for bed computation, which permits the design of foundations on the basis of limiting allowable deformations.