FEATURES OF CREATION AND RESTORATION OF SUPPORTING GEODESIC NETWORK IN ROAD CONSTRUCTION MEASUREMENTS

Abstract

The success of the implementation of projects of capital repairs, reconstruction or new construction of roads and man-made structures depends on the quality of geodetic support. Geodetic marking works must accompany the process of construction or repair work. Particular attention should be paid to the peculiarities of the creation and restoration of the geodetic support network in road construction, as these issues have a primary impact on the success of development and implementation of repair and construction projects and therefore affect the entire life cycle of the highway. The laying of points of the geodetic reference network is performed in order to ensure topographic survey at the stage of surveys and to ensure further marking works at the stage of overhaul, reconstruction or new construction of the highway. The project of creating a geodetic reference network must be included in the main work program or compiled separately and agreed with the customer. The project of creating a geodetic reference network must display information on the type of network points, density and location of points, methods of geodetic measurements, coordinate systems and heights, basic requirements for the accuracy of the position of geodetic reference points and requirements for reporting materials in the technical report. The location, type of fastening, construction and external design of the points of the basic geodetic network must ensure the preservation of the spatial position, protection from damage and loss of points. Metal structures of geodetic signs and design elements must be protected from corrosion by a special anti-corrosion coating. The location of the points is determined after the reconnaissance work, study of the initial data and the needs of design, construction and operation. The proposed features of creation and restoration of the basic geodetic network in road construction are reflected in DSTU 9154:2021 «Guidance on performance of geodesic works in road building».