The article justifies the need to take into account the structural strength of soils in the calculations of the base foundations yielding, as well as limiting the depth of the compressible thickness of the base by the value of the structural soil strength. The concept of the depth of the compressible thickness of the base, according to the authors of the article, is a necessary condition for the creation of a model of a linear deformable soil base. A hard-linear deformable model of the soil environment is proposed, within the framework of which the boundary-value problem is solved. Analytic functions of a complex variable for the Kolosov-Muskhelishvili equations are found. Based on the model of a hard-linear deformable soil, the analytical studies of the effect of the structural strength of soils on the value of base foundation have are conducted, and the calculation procedure is given. For example, selected typical soils of the Rostov region with characteristic physic and mechanical properties are studied. In the course of the solution of the problem, the dependence of precipitation of the base foundation on the structural strength of the soil was obtained. The obtained results are analyzed, conclusions are made.
The article describes the method of calculating the reinforcement of the plate part of the foundation, in which the destruction by bending and forcing through occurs at the same limit load, taking into account the strength characteristics of the ground base. The described method is compared with the standard methods of calculating the load-bearing capacity, reinforcing and forcing through the belt foundation.
The article discusses the problem of discrepancy of
normative methods for calculating the bearing capacity of foundations
experimental data. The authors proposed a new method
of calculation of flexible ferroconcrete foundation, which can
eliminate a large gap between the calculated and experimental
data. The article describes an experiment on a sandy base, and
its results, confirming the new methodology. The use of bilinear
limit line τ (σ) for the calculation of the strength characteristics
of dense sandy ground is describes.
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