The Combined Method of Arrangement of Pile Foundations in the Permafrost Zone

• Published in: IOP Conference Series: Materials Science and Engineering
• Main Authors: Mestnikov, V V, Mestnikova, I V
• Format: Article in Journal/Newspaper
• Language: unknown
• Published: IOP Publishing 2020
• Subjects: permafrost
• Online Access: http://dx.doi.org/10.1088/1757-899x/753/5/052025; https://iopscience.iop.org/article/10.1088/1757-899X/753/5/052025/pdf; https://iopscience.iop.org/article/10.1088/1757-899X/753/5/052025

Abstract The subject of the study is the development of rational types of foundations in the permafrost zone. The use of a combined method of arrangement of pile foundations, which provides for a combination of drilling and bored methods and seasonal cooling devices (SOU), is proposed. The greatest efficiency of using combined piles can be obtained when designing shallow foundations that are most susceptible to the effects of tangential forces of frost heaving and when calculating which not only the bearing capacity of the piles, but also the resistance to these tangential forces is taken into account. The Frost 3D software package performed mathematical modeling of the dynamics of the temperature field of the soil mass. The use of combined piles as building foundations will allow to achieve a significant economic effect: increase the bearing capacity of foundations, reduce its cost, reduce construction time, save materials and improve the quality of construction (the upper part of the combined piles is manufactured in the factory, undergoes thorough acceptance control, respectively, in the active the layer where the reinforced concrete structures are most susceptible to destruction, a high-quality cancer-free material is installed wines and cracks that can not be guaranteed when the process device bored pile foundations).