Published since 1923
DOI: 10.33622/0869-7019
Russian Science Citation Index (RSCI) на платформе Web of Science


  • BASES AND FOUNDATIONS, UNDERGROUND STRUCTURES
  • Improvement Of The Construction Of Steel Piles In Permafrost Soils
  • UDC 624.154 DOI: 10.33622/0869-7019.2022.01.34-38
    Andrey G. ALEKSEEV1,2, å-mail: adr-alekseev@yandex.ru
    Pavel M. SAZONOV1, e-mail: sazonov-pm@yandex.ru
    Yurii S. POVERENNIY3, e-mail: uspoverenniy@ntc.rosneft.ru
    Dmitriy A. ZELENIN3, e-mail: dazelenin@ntc.rosneft.ru
    Andrej V. FEFELOV4, e-mail: fefelovav@tomsknipi.ru
    Anton V. SAITOV4, e-mail: saitovav@tomsknipi.ru
    1 Research Center of Construction, Gersevanov Research Institute of Bases and Underground Structures (NIIOSP), Riazansky prospekt, 59, Moscow 109428, Russian Federation
    2 Moscow State University of Civil Engineering (National Research University), Yaroslavskoe shosse, 26, Moscow 129337, Russian Federation
    3 NK "Rosneft" - STC", ul. Krasnaya, 54, Krasnodar 350000, Russian Federation
    4 TomskNIPIneft, prospekt Mira, 72, Tomsk 634027, Russian Federation
    Abstract. The article considers the issue of improving the slurried and driving steel piles, which in recent years have been widely used in the areas of permafrost distribution. According to the requirements of CP 25.13330.2012 "Bases and foundations on permafrost soils" introduced in 2013, the cavity of the existing structure of steel tubular piles is filled with concrete, which causes certain difficulties when installing in difficult soil and climatic conditions. The article describes experimental studies to assess the possibility of excluding concreting of the internal space of piles by using an alternative material-a dry cement-sand mixture. Experimental studies were carried out on models of piles filled with dry and water-saturated cement-sand mixture, which are a fragment of an electric-welded straight-seam pipe with closed end surfaces by welding the upper and lower covers of a metal sheet, as well as on containers representing a steel pipe. It is established that the accumulation of water in the pile cavity during its freezing leads to irreversible deformations and violation of its integrity. It is shown that under the condition of ensuring the tightness of the pile structure for the entire period of operation of the structure and under the condition that all loads are perceived by the pipe walls, the use of cement-sand mixture instead of concrete is permissible. These studies are taken into account when updating SP 25.13330 "Bases and foundations on permafrost soils", introduced in 2021.
    Key words: permafrost, slurried pile, driving pile, pile foundation made of steel pipes, internal filling with concrete, dry cement-sand mixture, updating of regulatory requirements.
  • REFERENCES
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  • For citation: Alekseev A. G., Sazonov P. M., Poverenniy Yu. S., Zelenin D. A., Fefelov A. V., Saitov A. V. Improvement of the Construction of Steel Piles in Permafrost Soils. Promyshlennoe i grazhdanskoe stroitel'stvo [Industrial and Civil Engineering], 2022, no. 1, pp. 34-38. (In Russian). DOI: 10.33622/0869-7019.2022.01.34-38.

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