The settlement of pile in punched hole with broadening taking into account filtration consolidation

Abstract


There is relevant to rate foundation settlement speed in an irregular construction process. The technology of piles in punched holes with broadening is based on foundations in rammed pits technology and involves the compacted near-pile zone formation. There are filtration consolidation (primary) and creep of the soil skeleton (secondary consolidation) during the base compaction by rammers in a water-saturated clay soil. The piles are characterized by under broadening pressures of 1000 ÷ 3000 kPa, exceeding the estimates resistance of the basement soil. To determine the final (stabilized) pile settlement, a combined estimated scheme of the soil base in the form of a linearly deformable half-space and in a nonlinear formulation is proposed. The time factors are calculated for two cases: for the pressure 1000 kPa and 2000 kPa under the broadening. Deformation stabilization occurs in a relatively short period of about 80 days, which in practice should correspond to the period of construction building. This short settlement stabilization at significant pressures is due to the small active zone. Nevertheless, estimate the settlement in time allows to adjust the building timing, taking into account the conditions for ensuring relatively the regular settlement of all building sections.

Full Text

4

About the authors

M. V Pankina

Penza State University of Architecture and Construction

References

  1. Прогноз скорости осадок оснований сооружений / под ред. Н.А. Цытовича. – М.: Стройиздат, 1967. – 239 с.
  2. Ukhov, S.B. Prediction of consolidation-induced settlement of a dual-layer bed subject to increasing surface load over time / S.B. Ukhov, V.I. Sheinin // Soil Mechanics and Foundation Engineering. – 2004. – Vol. 41, no. 3. – P. 73–77. doi: 10.1023/B:SMAF.0000040183.49958.6f
  3. Тер-Мартиросян, З.Г. Осадка и длительная несущая способность сваи с учетом реологических свойств грунтов / З.Г. Тер-Мартиросян, А.З. Тер-Мартиросян, Л.Ю. Ермошина // Construction and Geotechnics. – 2022. – Т. 13, № 1. – С. 5–15. doi: 10.15593/2224-9826/2022.1.01.
  4. Бартоломей, А.А. Прогноз осадок свайных фундаментов / А.А. Бартоломей, И.М. Омельчак, Б.С. Юшков. – М.: Стройиздат, 1994. – 384 с.
  5. Зарецкий, Ю.К. Теория консолидации грунтов / Ю.К. Зарецкий. – М.: Наука, 1967. – 268 с.
  6. Тер-Мартиросян, З.Г. Взаимодействие барреты с многослойным окружающим и подстилающим грунтами с учетом их упругих и упруго-вязкопластических свойств / З.Г. Тер-Мартиросян, А.З. Тер-Мартиросян, Х.Х. Дам // Вестник МГСУ. – 2022. – Т. 17, № 9. – С. 1135–1144. doi: 10.22227/1997-0935.2022.9.1135-1144
  7. Пономарев, А.Б. К вопросу прогноза осадки сваи на аргиллитоподобной глине численными и аналитическими методами / А.Б. Пономарев, Е.Н. Сычкина, Н.Л. Волгарева // Вестник МГСУ. – 2016. – № 6. – С. 34–45.
  8. A nonlinear approach for time-depended settlement analysis of a single pile and pile groups / S. Feng, X. Li, F. Jiang, L. Lei, Z. Chen // Soil Mechanics and Foundation Engineering. – 2017. – Vol. 54, is. 1. – P. 7–16. doi: 10.1007/s11204-017-9426-8
  9. Kuwabara, F. Settlement behaviour of non-linear soil around single piles subjected to vertical loads / F. Kuwabara // Soils and Foundations. – 1991. – Vol. 31, iss. 1. – P. 39–46. doi: 10.1061/(ASCE)1090-0241(2002)128:1(76)
  10. Zotsenko, N.L. Long-term settlement of buildings erected on driven cast-in-situ piles in loess soil / N.L. Zotsenko, Yu.L. Vinnikov // Soil Mechanics and Foundation Engineering. – 2016. – Vol. 53, no. 3. – P. 189–195. DOI :10.1007/s11204-016-9384-6
  11. Bezvolev, S.G. Actualized procedure for the engineering analysis of primary and sec-ondary consolidations of water-saturated soils / S.G. Bezvolev // Soil Mechanics and Foundation Engineering. – 2018. – Vol. 55, no. 1. – P. 1–8. doi: 10.1007/s11204-018-9494-4
  12. Лапшин, Ф.К. Расчет свай по предельным состояниям / Ф.К. Лапшин. – Саратов: Изд-во Сарат. ун-та, 1979. – 152 с.
  13. Experimental study on the influence of granulometric and material compositions on soil rheological properties / J. Yuan, L. Ye, G. Hu, F. Ying-Guang // Soil Mechanics and Foundation Engineering. – 2020. – Vol. 57, no. 1. – P. 35–42. doi: 10.1007/s11204-020-09634-7
  14. Taylor, D.W. Research on consolidation of clays / D.W. Taylor. – Massachusetts Insti-tute of Technology, 1942. – 147 p.
  15. Casagrande, A. Notes on soil testing for engineering purposes / A. Casagrande, R.E. Fadum. – Harvard Soil Mechanical Services, 1940. – 74 p.
  16. Glukhov, V.S. Calculation of widened pile settlement with regard to nonlinearity / V.S. Glukhov, M.V. Glukhova // Journal of Physics: Conference Series : 2, Perm, 26–28 May. – Perm, 2021. – P. 012056. doi: 10.1088/1742-6596/1928/1/012056
  17. Кушнер, С.Г. Расчет деформаций оснований зданий и сооружений / С.Г. Кушнер. – Запорожье, 2008. – 496 с.
  18. Глухов, В.С. Нелинейные деформации уплотненного грунтового основания под уширением свай в пробитых скважинах / В.С. Глухов, М.В. Панкина // Construction and Geotechnics. – 2023. – Т. 14, № 1. – С. 19–28. doi: 10.15593/2224-9826/2023.1.02

Statistics

Views

Abstract - 8

PDF (Russian) - 7

Refbacks

  • There are currently no refbacks.

Copyright (c) 2024 Pankina M.V.

Creative Commons License
This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License.

This website uses cookies

You consent to our cookies if you continue to use our website.

About Cookies