Experimental laboratory tests of piles with a polymer casing under the action of additional loading friction forces from soil subsidence.

Using two variants of modeling the process of soil subsidence, the results of experimental laboratory studies of cylindrical and tapered piles have been obtained in the form of the graphs of dependences of deformations S and their intensities I on the values of relative subsidence ε and pressure P. The advisability of using tapered piles with a polymer casing to reduce the additional loading friction forces in structurally unstable soils has been substantiated. [ABSTRACT FROM AUTHOR]