Determination of application limits of graph-analytical method of a single pile settlement calculation

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Abstract

The limits of application of the graph-analytical method for calculating the settlement of a single pile in a single-layer soil massif depending on the length and diameter of the pile are investigated. The graph-analytical method makes it possible to take into account non-linear work of the soil on the whole surface of the pile, exclusion from further work of the soil area along the lateral surface of the pile, where the ultimate strength of the soil was reached, mechanism of load distribution on the pile and friction reduction at the contact “pile–soil”. A comparative analysis of the results obtained by the graph-analytical method and numerical simulation performed in the Plaxis 2d software package was performed. According to the results of calculations, the graphs of dependence of settlements on loads were plotted and a comparative analysis of the character of deformation of the graphs, distribution of loads on the pile and values of settlements was performed. As a result, conclusions were drawn about the applicability of the graph-analytical solution for calculating pile settlements depending on their length and diameter, and recommendations were given for adjusting the design domain and pile load distribution to increase convergence with the numerical solution.

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About the authors

V. V. Sidorov

National Research Moscow State University of Civil Engineering

Author for correspondence.
Email: vitsid@mail.ru

Candidate of Sciences (Engineering), Docent of the Department MGiG NIU MGSU, Research Center “Geotechnics named after Z.G. Ter-Martirosyan”

Russian Federation, 26, Yaroslavskoe Highway, Moscow, 129337

A. Z. Ter-Martirosyan

National Research Moscow State University of Civil Engineering

Email: gic-mgsu@mail.ru

Doctor of Sciences (Engineering), Vice-Rector, Professor of the Department of Soil Mechanics and Geotechnics, Chief Researcher of the Scientific and Educational Center “Geotechnics” named after Z.G. Ter-Martirosyan of the National Research University MGSU

Russian Federation, 26, Yaroslavskoe Highway, Moscow, 129337

A. S. Almakaeva

National Research Moscow State University of Civil Engineering

Email: totilas96@mail.ru

Junior Researcher of Research Center “Geotechnics” named after Z.G. Ter-Martirosyan”

Russian Federation, 26, Yaroslavskoe Highway, Moscow, 129337

References

  1. Kurguzov K.V., Fomenko I.K., Sirotkina O.N. Assessment of bearing capacity of piles. Calculation methods and problems. Izvestiya of the Tomsk Polytechnic University. Geo Assets Engineering. 2019. No. 10, pp. 7–25. (In Russian). https://doi.org/10.18799/24131830/2019/10/2294
  2. Polishchuk A.I., Samarin D.G., Filippovich A.A. Evaluation of the bearing capacity of piles in clayey soils using the programme PLAXIS 3D FOUNDATION. Vestnik of the Tomsk State National University of Architecture and Civil Engineering. 2013. No. 3, pp. 351–359. (In Russian).
  3. Gotman A.L., Gavrikov M.D. Investigation of the peculiarities of vertically loaded long bored piles and their calculation. Construction and Geotechnics. 2021. Vol. 12. No. 3, pp. 72–83. (In Russian). https://doi.org/10.15593/2224-9826/2021.3.08
  4. Balysh A.V., Sernov V.A. Mechanical models of interaction of bored piles with the foundation. Geotechnics of Belarus: science and practice: proceedings of the International Conference. Minsk. Belarusian National Technical University. 2018, pp. 69–74. (In Russian).
  5. Ishihara K. Recent advances in pile testing and diaphragm wall construction in Japan. Geotechnical Engineering. 2010. Vol. 41, pp. 97–122.
  6. Kravtsov V.N. Investigation of limit states of bearing capacity and deformations of clay foundations of short precast (driven) piles of small cross-section when they are pushed in and pulled out. Stroitel’stvo. Prikladnye nauki. Stroitel’stvo i arkhitektura. 2021. No. 8, pp. 65–74. (In Russian). https://journals.psu.by/constructions/article/view/725
  7. Ter-Martirosyan Z.G., Nguen Zang Nam. Interaction of long-length piles with inhomogeneous mass taking into account nonlinear and rheological properties of soils. Vestnik MGSU. 2008. No. 2, pp. 3–14. (In Russian).
  8. Sharafutdinov R.F., Razvodovsky D.E., Zakatov D.S. An engineering method for predicting the precipitation of single piles taking into account the elastic-plastic behavior of the soil. Osnovaniya, fundamenty i mekhanika gruntov. 2024. No. 3, pp. 7–15. (In Russian). https://ofmg.ru/index.php/ofmg/article/view/7632/0
  9. Ter-Martirosyan Z.G., Sidorov V.V., Strunin P.V. Theoretical basis for the calculation of deep foundations – piles and barrettes. Vestnik of Perm National Research Polytechnic University. Architecture and construction. 2014. No. 2, pp. 190–206. (In Russian).
  10. Ter-Martirosyan Z.G., Sidorov V.V., Strunin P.V. Calculation of the stress-strain state of a single compressible barrette and pile at interaction with the soil mass. Zhilishchnoe Stroitel’stvo [Housing Construction]. 2013. No. 9, pp. 18–21. (In Russian).
  11. Mirsayapov I.T. Push-through settlement of slab-pile foundation under cyclic loading. Izvestiya of the Kazan State University of Architecture and Civil Engineering. 2020. No. 4, pp. 6–14. (In Russian).
  12. Mirsayapov I.T. Bearing capacity of slab-and-pile foundations taking into account redistribution of forces between piles under cyclic loading. Izvestiya of the of the Kazan State University of Architecture and Civil Engineering. 2021. No. 2, pp. 5–12. (In Russian).
  13. Sidorov V.V., Ter-Martirosyan A.Z., Almakaeva A.S. Grapho-analytical method for calculating pile in a single-layer massif, taking into account pile slippage. Promyshlennoe i gragdanskoe stroitelstvo. 2023. No. 10, pp. 96–104. (In Russian). https:// doi.org/10.33622/0869-7019.2023.10.96-104
  14. Ter-Martirosyan A.Z., Sidorov V.V., Almakaeva A.S. Graphic-analytical method for calculating the settlement of a pile in a multilayer array, taking into account the detachment and slipping of the pile along the ground. Zhilishchnoe Stroitel’stvo [Housing Construction]. 2023. No. 11, pp. 37–43. (In Russian). https://doi.org/10.31659/0044-4472-2023-11-37-43
  15. Doroshkevich N.M., Znamenskii V.V., Kudinov V.I. Engineering methods for calculating pile foundations under different loading schemes. Vestnik MGSU. 2006. No. 1, pp.119–132. (In Russian).
  16. Hansen J.B. Revised and extended formula for bearing capacity. Danish Geotechnical Institute. Copenhagen. 1970. Bulletin 28, pp. 5–11.

Supplementary files

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2. Fig. 1. Calculation diagram of the analytical problem: a – indicating the acting forces; b – indicating the acting stresses [13]

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3. Fig. 2. Typical diagrams: a – mobilized shear stresses; b – limiting shear stresses; с – epiphyses addition [13]

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4. Fig. 3. Graphs of the dependence of settlement on the load of a 4 m long single pile: 1 – graphic-analytical solution; 2 – numerical solution; 3 – elastic solution

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5. Fig. 4. Graphs of the dependence of settlement on the load of a single pile: a – 10 m long; b – 15 m long; 1 – graphic-analytical solution; 2 – numerical solution; 3 – elastic solution

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6. Fig. 5. Graphs of the dependence of settlement on the load of a 25 m long single pile and cell width: a – 10d; b – 17d; 1 – graphic-analytical solution; 2 – numerical solution; 3 – elastic solution

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7. Fig. 6. Graphs of the dependence of settlement on the load of a 50 m long single pile: a – before load distribution adjustment; b – after load distribution adjustment; 1 – graphic-analytical solution; 2 – numerical solution; 3 – elastic solution

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8. Fig. 7. Graphs of the dependence of settlement on the load of a single 0.3 m diameter pile: a – before adjustment; b – after adjustment; 1 – graphic-analytical solution; 2 – numerical solution; 3 – elastic solution

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9. Fig. 8. Graphs of the dependence of settlement on the load of single pile: a – diameter 0,5 m; b – diameter 0,8 m: 1 – graphic-analytical solution; 2 – numerical solution; 3 – elastic solution

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10. Fig. 9. Graphs of the dependence of settlement on the load of a single 1.6 m diameter pile: 1 – graphic-analytical solution; 2 – numerical solution; 3 – elastic solution

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