Geodetic monitoring of deformations of the earth's surface and main gas pipeline in the zone of influence of mining operations

The importance of the task of calculating and analyzing displacements and deformations of the earth's surface for monitoring the condition of objects located on the earth's surface within the influence of mining operations is well-founded. Studies have been conducted that indicate that the actual magnitudes of displacements and deformations of the earth's surface differ significantly from the estimated values ​​determined by standard methods. Today, when developing measures to protect objects on the earth's surface, a normative technique is used in which the overload factor is used. However, it does not provide an opportunity to determine the actual range of variation of subsidence and deformations of the earth's surface. The authors of the article substantiated the project of an observation station for geodetic measurements of displacements of the earth's surface and deformations of the main gas pipeline, forged by the mine named after "Heroes of space" PJSC "DTEK PAVLOHRADVUHILLYA". The observation station was established and instrumental observations were carried out using the GNSS receiver of the Leica Geosystem company. Expected and estimated subsidence and deformations of the earth's surface within the influence of the 960th lava were calculated according to the standard methodology for certain mining and geological conditions. The results obtained by the authors during field measurements confirm the spread of subsidence and deformations along the main cross-sections of the displacement basin. It is proposed to take into account the obtained results when choosing means of protecting the main gas pipeline.