«Equipment and technologies for oil and gas complex»

Methodological approaches to the geotechnical monitoring system substantiation under climate change

UDC: 628.8:551.583.2
DOI: -

Authors:

¹ Gazprom dobycha Urengoy, Novy Urengoy, Russia
² Gazprom proektirovanie

Keywords: Urengoyskoye field, permafrost, foundations of engineering structures, climate change, assessment of the vulnerability of structures, adaptation measures, temperature stabilization of soils

Annotation:

The results of studies aimed at ensuring the required control and management of the permafrost state level, being the basis of production facilities in conditions of climate change are presented. To identify key problems at the level of individual production facilities in various landscape zones, a methodology has been developed to assess the vulnerability of structures in case of geocryological conditions change. The methodology provides for the identification of types of structures foundations based on temperature and soil state; foundations types identification with a preliminary assessment of the direction and intensity of deformations; determination of the structures vulnerability degree based on their systematization according to foundations types. The results of assessing the vulnerability of structures reflecting the different reactions of the supporting component of the operated geotechnical systems to nowadays climate changes and man-made impacts are the basis for ranking the priorities of an enterprise in the process of its adaptation activities. To ensure the mechanical safety of vulnerable structures in accordance with design calculation schemes under the first principle of construction on permafrost soils, some options of making technical decisions for controlling the temperature mode of soils are proposed in relation to the types of foundations identified when assessing the vulnerability of structures, depending on the type of thermal interaction of structures with foundation soils.

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