Abstract
The paper considers experimental and theoretical researches on layers reduction in the pavement base strucure using geogrids on the Amur automobile road (Chita – Khabarovsk). The calculations on transverse elasticity limits are carried out, and some structural designs of a regular pavement and a new one with reduced base layers are offered. A geotechnical modelling with the finite element methods in the software package FEM-models is carried out to evaluate a rational design. The experimental researches on determining the pavement elasticity modulus by the stamp proves both designs being equal in terms of their deformability. The experimental researches on determining the pavement base stress strain behavior caused by the operational loads show a reduction of stresses under the geogrid. The survey of deformations in the embankment and the pavement are presented.
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