Authors: A.S. Kurilko, Yu.A. Khokholov, V.V. Kiselev, D.E. Solovev, D.V. Hosoev

Title of the article: Restoration and stabilization of negative temperature conditions of soils of garage-type structures in the permafrost zone

Year: 2026, Issue: 3, Pages: 100-109

Branch of knowledge: 2.8.6. Geomechanics, destruction of rocks by explosion, mine aerogasdynamics and mining thermophysics

Index UDK: 624.1 : 622.838.53 : 622.71 [51]

DOI: 10.26730/1999-4125-2026-3-100-109

Abstract: This article examines the safety of a hazardous facility — a garage built in the permafrost zone and operated under positive temperature conditions. It presents diagrams of the seasonal freezing units (SCU) beneath the garage, as well as a three-dimensional domain for calculating the temperature regime of the soil beneath it with the SCU. The causes of the emergency, which arose as a result of thawing of frozen ground beneath the garage, forming a thawed basin and, consequently, deformation of virtually all structural elements, are described. The results of temperature studies of the soil beneath the garage's foundation are presented, confirming a violation of the design temperature conditions for its operation and the absence of measures to stabilize the negative temperature conditions in the design. Furthermore, the calculations revealed the presence of soil thawing processes under the garage during the winter period in the absence of thermal insulation. The results of numerical experiments conducted using a specially developed three-dimensional mathematical model for the formation and prediction of soil temperature parameters using seasonal freezing units, which have practical significance, are presented in graphic form. The effectiveness of using SCU for restoring and stabilizing subzero soil temperatures is emphasized, as is the use of thermal insulation under concrete floor slabs to neutralize heat fluxes from the building. The importance and necessity of conducting research to predict soil temperatures using mathematical models during pre-design work for above-ground structures in the permafrost zone operating under positive temperature conditions is noted, thereby ensuring their long-term, maintenance-free and safe operation

Key words: Foundations of above-ground structures cryolithozone permafrost soils temperature regime seasonal cooling units (SCU) mathematical modeling thermal insulation

Receiving date: 24.03.2026

Approval date: 15.06.2026

Publication date: 27.08.2026

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