RESEARCH OF SAND FILTRATION FILTRATION FACTORS OF URBUS AND DISTURBED COMPOSITION WHEN CONSTRUCTING BASIS OF PAVEMENTS IN MOSCOW

Abstract

On the instructions of the State Committee for Transport and Road Facilities of the Republic of Bashkortostan, MADI specialists began the development of an organization standard for standard designs of flexible pavements for regional and intermunicipal highways. As part of the development of this standard, road-climatic zoning of the territory was carried out, which is based on one of the determining climatic parameters for the design of pavements - the depth of soil freezing. The contours of the normative soil freezing depths do not coincide with the boundaries of the climatic regions of the Republic of Bashkortostan according to the design and construction conditions. This is due to the fact that climatic zoning was carried out taking into account a number of the most significant climatic factors for solving technical problems. At the same time, the depth of soil freezing within one climatic region can vary by 2 times, i.e. characterized by significant dispersion. Therefore, it was proposed to identify microdistricts in each climatic region with similar average depths of soil freezing and their subsequent combination according to freezing conditions