Guidelines for determining the necessity of geotechnical monitoring

UDK: 614.83:622.276

DOI: 10.24887/0028-2448-2025-10-106-112

Key words: geotechnical monitoring, observation duration, risk-based approach, engineering-geological conditions, severity of consequences, permafrost

Authors: A.G. Matiukhin (NK Rosneft-NTC LLC, RF, Krasnodar); D.E. Pogorzhalsky (NK Rosneft-NTC LLC, RF, Krasnodar); A.V. Zagumennikova (NK Rosneft-NTC LLC, RF, Krasnodar); E.V. Zenkov (NK Rosneft-NTC LLC, RF, Krasnodar)

In modern practice of designing and operating industrial facilities, especially in the complex engineering and geological conditions of the Arctic and areas of permafrost soils, geotechnical monitoring has transformed from an auxiliary procedure into a key element of the safety system. The article presents detailed methodological recommendations, developed by specialists of Rosneft Oil Company, for substantiating the necessity and duration of geotechnical monitoring for buildings and structures operating in complex engineering-geological conditions, including permafrost regions. The methodology's core is a risk-based approach that integrates the assessment of two key criteria: the complexity category of engineering-geological conditions (determined by factors such as geological processes, permafrost properties, technogenic impacts, geomorphology, geological structure, and hydrogeological conditions) and the severity of potential consequences of facility failure or accident (classified from critical to extremely low). A priority matrix is proposed for practical application, which differentially determines not only the necessity of geotechnical monitoring but also its priority level (high, medium, low) and required scope based on the combination of these criteria. The methodology also establishes clear rules for determining monitoring duration: continuous throughout the entire lifecycle for high-priority facilities; until parameter stabilization (not less than 2 years) for medium priority; primarily visual control for low priority. A significant aspect of the work is the consideration of practical aspects of the methodology's implementation, including an algorithm for its application, from initial data collection to the development and execution of a monitoring program. Special attention is paid to the economic efficiency of this approach, which optimizes resource allocation towards the highest-risk facilities, thereby preventing significant financial losses and environmental damage.

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