Abstract
Buried abutments are most broadly applied in connections of road bridges structures and approach embankments. Embankment and cone weight force influence is the peculiarity of buried abutments bases and foundations constructions conditions of stability and deformation. There is in the article a description of road bridges buried abutments bases engineer calculation method including the complex of limit state checkings and grounding of calculation schemes. The calculations fulfil by calculated schemes of hard-plastic midst theory (on the base of prof. G.M. Shakhunjantc horizontal strengths method) and linear deformation (or elastic-plastic) midst theory. Table data necessitated for calculations are quoted. A way for define the strains in buried abutments bases from cone and approach embankment by the linear deformation midst theory is elaborated by means of making conventional (equivalent) calculated scheme. Non-weighting layer is added to the base, acting load is substitute by equal by value half-endless strip. By it on the real level of base arise normal and tangent strains, conformed with the form approach embankment restricted by slopes from three sides. It is suggested a method of buried abutment base soils stability calculation by the More-Coulomb equation, realizing by mean of strains, obtained in accordance with above descripted way.
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