Forecasting the service life of a gas pipeline after repair and restoration work using polymer materials
Abstract
Forecasting the service life of a gas pipeline after repair and restoration work using polymer materials
Incoming article date: 12.12.2025The problem of ensuring the reliability and durability of the restored pipelines is an urgent task, especially in connection with the use of new materials in repair practice. In recent years, polymer materials have been widely used in pipeline repair and restoration work. Research in this area is mainly focused on technological processes, the development of equipment and structural elements made of composite materials. In our study, we set ourselves the task of using mathematical modeling to evaluate the operation of the steel+polymer shell structure after repair work on the gas pipeline, namely, the dynamics of changes in reactive pressure and maximum stresses in pitting corrosion zones depending on ground conditions. The results were obtained that allow us to predict the service life of this structure in soils with different corrosion activity. A significant increase in the bearing capacity of a worn pipeline repaired with polymer inserts in soils with high activity of corrosion processes has been proven.
Keywords: gas pipeline, metal corrosion, repair and restoration work, polymer materials, corrosive soil, durability, forecasting the service life