The recommendations about calculation offered in this article extend on the ferroconcrete two-conical piles immersed by cave-in for the bases of buildings and constructions which design is developed by "Highways and Bridges" chair of the Perm national research polytechnical university. Two-conical piles are characterized by the increased resilience to action of forces of a frost heaving in comparison with traditionally applied prismatic piles at the expense of the return orientation of the top cone.The description of a method of calculation of the base in the form of a bush from two-conical piles is provided in frosty water-saturated clay soil from the point of view of its stability against action of forces of a frosty heaving. The comparative analysis of the obtained settlement data with experimental is carried out. The technique of determination of size of a frosty heaving of two-conical piles as a part of base bushes is developed and in number realized by forces of a frosty heaving when modeling soil as linearly -deformable space. The calculation method which basis the condition of equality of the works made by forces of a frosty heaving, and forces interfering a frosty heaving of not loaded pile bases from two-conical piles is is offered. The method allows to project with an accuracy sufficient for practical purposes the bases in water-saturated clay soil.