2025, Vol. 12, No. 2. - go to content...

Permanent address of this page - https://t-s.today/en/12sats225.html

Метаданные этой статьи так же доступны на русском языке

DOI: 10.15862/12SATS225 (https://doi.org/10.15862/12SATS225)

Full article in PDF format (file size: 766.8 KB)

For citation:

Shestakov N.I., Fediuk R.S., Agapov D.G., Agapov N.G. Biostabilization technologies for thermal stabilization of roadbed soils in northern road construction. Russian Journal of Transport Engineering. 2025; 12(2). Available at: https://t-s.today/PDF/12SATS225.pdf (in Russian). DOI: 10.15862/12SATS225

Biostabilization technologies for thermal stabilization of roadbed soils in northern road construction

¹Nikolay I. Shestakov, ²Roman S. Fediuk, ¹Daniil G. Agapov, ¹Daniil G. Agapov

¹Moscow State University of Civil Engineering (National Research University), Moscow, Russia
²Far Eastern Federal University, Vladivostok, Russia

Corresponding author: Roman S. Fediuk, e-mail: Roman44@yandex.ru

Abstract. The article examines the application of biostabilization technologies for thermal stabilization of soils to enhance the stability of highways in permafrost conditions. Primary focus is given to the use of seasonally active cooling devices, such as thermal stabilizers and thermosyphons, which ensure stable thermal conditions and prevent soil thawing. Thermal process modeling was performed using the Frost 3D software package, accounting for moisture phase transitions and non-stationary thermal phenomena. For the first time, an integral criterion of frozen state stability (Kу, stability coefficient) is proposed, enabling quantitative evaluation of device efficiency based on changes in frozen soil volume over time. A calculation example demonstrated an expansion of the frozen zone over 4,5 years of operation, confirming the long-term effectiveness of thermal stabilizers. The obtained temperature profiles and cooling capacity dynamics indicate high system stability under seasonal climatic fluctuations. The use of seasonally active cooling devices has proven effective in reducing anthropogenic impact, improving road infrastructure reliability, and implementing biostabilization design principles in northern regions.

Keywords: thermal stabilizers; permafrost; thermosyphons; road construction; biostabilization; soil stabilization; thermal modeling