THE PROVISION OF THE INSPECTIONS’ CONTROL ACCURACY ON THE IV, V CATEGORY ROAD BASICS AND COVERINGS BY THE APPLICATION OF H-3 TYPE NIVELIERS

Abstract

The permissible deviations (limiting errors) are given in the normative documents from the design values of the structural layers of the road clothes construction, but the accuracy standards are not separately for construction and geodetic work in the construction of bases and coatings. The article presents the differences in the allowable deviations’ values in SNiPs and in their updated rules’ editions - codes of rules for the highways construction, the differences in the sets of road vehicles with automatic and without automatic systems of specified elevations, the steps of leveling in the design and the finished construction layers’ acceptance of road clothes. The discrepancy between the requirements in regulatory documents for the highway construction, and the requirements in regulatory documents on geodetic support for the accuracy of construction are shown. The maintenance of the geodetic control of base unevenness construction and cover surfaces during the IV and V of public roads’ construction and departmental ones with the road machines’ usage with automatic system of holding elevations for different coefficients of constructing layers technological processes in leveling through 5, 10 and 20 m. The values of the errors and maximum distances from optical levels of the type H-3 are given for the uneven ground and road surfaces’ dressing control. It is recommended in the research to perform geodetic control for base and cover devices using standard errors with confidence probabilities P = 0,90 and P = 0,95.

Keywords

• accuracy
• geodetic control
• surface irregularities
• foundations and coatings
• road clothes
• highways