Keyword: «main gas pipeline»

A considerable length of main gas pipelines (MGP), a variety of natural-climatic, geocryological conditions and impacts determine the need to allocate sections, in which the development of dangerous natural processes and impacts on MGP is predicted. For such sections requirements on protection of MG from dangerous influences should be formulated, and also measures on monitoring of development of dangerous processes, changes of a spatial position of the pipeline and an estimation of its stress-strain state (STS) should be established. In the article methodological bases of calculated forecasting and classification of pipeline sections in the zones of development of geocryological engineering processes were developed: – integrated methodology for the analysis and prediction of the stress-strain state of MGP in the areas of development of dangerous geocryological processes; – the principles of classifying the sections according to the predicted hazard; – criteria for assessing the impact of natural processes on the pipeline and their ranking in terms of significance levels; – classification of MG sections according to the predicted hazard.