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Freezing and Thawing of Enclosing Structures and Foundation Soils Taking into Account the Effects of Solar Energy: Part 1. Theoretical Foundations of Freezing Wet Soils L&E, Vol.32, No.1, 2024

Light & Engineering 32 (1) 2024

Volume 32
Date of publication 02/12/2024
Pages 70-79

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Freezing and Thawing of Enclosing Structures and Foundation Soils Taking into Account the Effects of Solar Energy: Part 1. Theoretical Foundations of Freezing Wet Soils L&E, Vol.32, No.1, 2024
Articles authors:
Alexander M. Ibragimov, Lyubov Yu. Gnedina, Svetlana V. Gerasimova

Alexander M. Ibragimov, Doctor of Technical Sciences, Professor. Graduated from the Ivanovo Power Engineering Institute in 1981, Faculty of Civil Engineering, specialty – Industrial and Civil Engineering, qualification – Civil Engineer; North-Western Academy of Public Administration under the President of the Russian Federation (1997), specialty – “Jurisprudence”, qualification – lawyer. In 1988, he defended his Ph. D. thesis, and in 2007 – his HDR thesis. Member of the Petrovsky Academy of Sciences and Arts, Full Member of the Russian Society of Civil Engineers, Advisor to the Russian Academy of Architecture and Construction Sciences. Awarded the Certificate of Honour of the Ministry of Education and Science of the Russian Federation. Specializes in the field of the theory of calculation of buildings and structures. The general list of scientific works includes more than 180 titles

Lyubov Yu. Gnedina, Ph. D., Associate Professor. She graduated from the Ivanovo Power Energy Institute in 1981, Faculty of Civil Engineering, specialty – PGS, qualification – Civil Engineer. In 1999, she defended her Ph. D. thesis. At present, she is an Associate Professor at the Department of Architectural and Construction Design and Physics of the Environment, NRU MGSU. Also, she awarded with an honorary diploma of the Ministry of Education and Science of the Russian Federation and her specialization is in the field of thermo-technical calculations of building materials and building structures. The general list of her scientific papers is more than 70 titles

Svetlana V. Gerasimova, student of the NRU MGSU. She is studying at the Institute of Construction and Architecture in the direction of industrial and civil construction in the profile of reinforced concrete and stone structures

Abstract:
The temperature and humidity state of the foundations and foundations in the climatic conditions of the Russian Federation is decisive in their design,it affects the bearing capacity, operational reliability, and durability of the foundations and the entire building.
When designing foundations and foundations, they solve a set of tasks that are subordinated to one idea, so that the soil (base) he carried the load from the building or structure proposed to him, and the foundation structure itself would ensure reliable operation of the building or structure for the entire life cycle, since the foundations belong to permanent structures, and their repair is associated with large material costs.
Existing modern calculation methods assume that the heat transfer process is stationary and do not consider real processes – seasonal and daily fluctuations in outdoor air temperature, heating on and off modes, temperature changes in the depth of the soil, wet structures due to accidents of heating plants, the absence (or destruction) of a blind area, etc. Freezing of soils, as a rule, occurs in autumn-winter period, when the soil is saturated with moisture. Thawing of the soil occurs in the spring-summer period. These processes are non-stationary in nature, which is influenced by many factors, including solar radiation. The work is devoted to modelling and calculation of these real processes. The process of freezing and thawing of the foundation soils is influenced by many factors: the composition of the soil, water, ice, snow, solar radiation, fluctuations in outdoor temperature. The paper provides general information about some of the physical properties of water, ice, and snow, necessary for understanding the processes under consideration.
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