About the authors
| First name, Middle name, Last name, Scientific degree, Scientific rank, Current position. Full and brief name of the organization, The organization address. | Alfred L. Gotman, Doctor of Technical Sciences, Professor, Russian University of Transport, Chief Specialist, Gersevanov Research Institute of Bases and Underground Structures, Moscow, Russian Federation E-mail: This e-mail address is being protected from spambots. You need JavaScript enabled to view it . Sergey A. Krutyaev, leading engineer, PODZEMPROEKT LLC, Moscow, Russian Federation E-mail: This e-mail address is being protected from spambots. You need JavaScript enabled to view it . |
| Title of the article | Calculation of horizontally loaded pyramidal piles |
| Abstract. | Problem Statement. The main problem in calculating horizontally loaded pyramidal piles lies in the absence of engineering calculation methods in regulatory technical documentation that take into account the specifics of their operation within soil masses. The aim of this study is to develop an engineering method for calculating such pyramidal piles subjected to horizontal loading. The objectives include analysis of experimental studies, construction of a pile calculation model, and development of a calculation methodology. Results. Static tests on cast-in-place pyramidal piles for horizontal load were conducted, resulting in graphs illustrating the relationship between applied load and pile displacement. It was found that the nature of horizontal displacements demonstrates pronounced nonlinear behavior across a wide range of potential shifts. An engineering calculation method for horizontally loaded pyramidal piles has been developed. This approach allows determination of horizontal displacement and rotation angle of the pile head, along with bending moments and shear forces along the pile shaft. Calculations show good agreement with experimental data when displacements are small (~10 mm); however, deviations from actual values reach approximately 11-29% on average. Conclusions. The significance of these findings for the construction industry lies in providing a method which expands the scope of application for pyramidal piles due to their economic efficiency compared to constant cross-section piles. It has been demonstrated that taking into account the nonlinear behavior of the soil foundation is necessary for an adequate description of all ranges of horizontal displacements of piles. |
| Keywords. | pyramidal pile, horizontal load, variable section pile, coefficient of subgrade reaction, displacement |
| For citations: | Gotman A.L., Krutyaev S.A. Calculation of horizontally loaded pyramidal piles // News of KSUAE, 2025, № 3(73), p. 50-57, DOI: 10.48612/NewsKSUAE/73.5, EDN: ENUROY |
