Keyword: «permafrost zone»

Authors:

A. Kyrilko,

F. Popenko,

U. Hoholov,

E. Romanova

The work is devoted to the freezing of thawed bulk soils of a slope held by a gabion wall in a cryolithozone with seasonal cooling devices. To assess the effectiveness of artificial freezing of slope soils, a three-dimensional mathematical model of heat exchange processes has been developed, taking into account the phase transitions of moisture and the dynamics of atmospheric air. Numerical calculations have shown the effectiveness of using seasonal cooling cooling devices to increase the stability of the bulk slope.

Keywords: mathematical model, temperature regime, fill soils, seasonal cooling devices, heat exchange, permafrost zone, stefan's problem, gabion wall.

HEAT AND HUMIDITY REGIME OF THE GROUND BASE OF THE GAS PIPELINE AT THE WATER CROSSING

Authors:

Petr Permyakov,

Georgii Popov,

Tatyana Vinokyrova,

Djylystan Ivanov

Due to the global warming of the climate in the northern regions, the erosion and deformation of river banks has increased. The article deals with mathematical modeling of the heat and humidity regime of the soil, taking into account the influence of above-frozen, flood and sub-frozen groundwater. In winter, a water-saturated zone forms in the coastal part of the soil, which completely freezes and is accompanied by frost-breaking cracking, and the loose soil is easily eroded by flood water, which enhances the process of thermal abrasion.

Keywords: mathematical modeling, permafrost zone, heat and humidity regime, global climate warming, erosion and deformation of river