Monitoring the deformation of the earth's surface the main gas pipeline with application of GNSS technologies

The purpose of this study is to evaluate the application of Global Navigation Satellite System (GNSS) technologies for monitoring the deformation of the earth's surface along a main gas pipeline. Ensuring the stability and integrity of gas pipelines is crucial for safe and efficient transportation of natural gas. Traditional methods of monitoring often fall short in providing real-time and high-precision data, necessitating the adoption of advanced technologies. GNSS technologies offer significant advantages in terms of accuracy, real-time data collection, and coverage over extensive areas, making them an ideal solution for this application.

The study area is located in the Pavlogradsko-Petropavlivskyi geological-industrial district of the Donbas region, specifically the section of the pipeline affected by the 960th longwall of the Heroes of Space mine. The geostructural context of this area poses unique challenges due to its complex geological and mining conditions. A comprehensive approach was adopted, including a detailed initial analysis, precise geodetic fieldwork using GNSS receivers, and meticulous data processing. The observational network was established along the pipeline route, with ground benchmarks strategically placed to capture deformations effectively.

The results obtained from the GNSS monitoring revealed significant soil subsidence at various observation points. Notably, subsidence was observed during multiple observation periods, with a minimum value of -176 mm at reference point Rp19 during the 2nd observation, -774 mm at Rp17 during the 3rd observation, and -849 mm at Rp17 during the 4th and 5th observations. These findings indicate a progressive and substantial downward movement of the soil, particularly around reference point Rp17, underscoring the critical need for continuous monitoring to ensure the structural integrity of the pipeline.

In conclusion, the application of GNSS technologies has proven to be highly effective for monitoring the deformation of the earth's surface along the main gas pipeline. The study provides valuable insights into the impact of geological and mining activities on pipeline stability and highlights the advantages of GNSS in offering high-precision, real-time data. The results emphasize the importance of regular monitoring and the implementation of preventive measures to mitigate potential risks, ensuring the safe operation of gas pipelines. This research contributes to the broader field of infrastructure monitoring and management, showcasing the potential of GNSS technologies in enhancing safety and efficiency.