- BASES AND FOUNDATIONS, UNDERGROUND STRUCTURES
- About Necessity of Investigation of Screw Piles Operation and Actualization of Standards of Design of Screw Pile Foundations
- UDC 624.154
Andrew G. ALEKSEEV, e-mail: adr-alekseev@yandex.ru
Stepan G. BEZVOLEV, e-mail: compgeo@yandex.ru
Pavel M. SAZONOV, e-mail: sazonov-pm@yandex.ru
Anton A. ZVEZDOV, e-mail: 89636885828@mail.ru
JSC Research Center of Construction, Research Institute of Bases and Underground Structures (NIIOSP) named after N. M. Gersevanov, 2-ya Institutskaya ul., Moscow 109428, Russian Federation
Abstract. Main and principal advantages of screw piles, which are used when constructing foundations of buildings and facilities, are considered in comparison with the classical types of pile foundations (driven, bored, etc.), The classification of screw piles, including multi-lapped piles, is presented in accordance with SP 24.13330.2011* (Rev. 1) Updated version of "SNiP 2.02.03-85 Pile foundations" is presented. The present state of the issue of designing efficient structures of screw piles, indicating the relevance of this scientific-technical problem in connection with insufficient development of building codes is outlined. On the example of main building regulations, obligatory for using in Russia, which regulate the design and application of screw piles, the necessity of actualization of the normative base is considered. This is due to the inability to effectively design and use the foundations of buildings and structures with the use of screw piles without the development of STC (special technical conditions), and pre-design development of constructive solutions, including field testing of soils with screw piles. The vital problems of experimental and theoretical studies of the interaction of screw piles with a soil massif, and the main directions of further study of this issue are formulated.
Key words: screw piles, multi-lapped piles, pile foundations, screw pile foundations, foundations. - REFERENCES
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