Email this article Method for determining the mechanical characteristics of viscoelastic soils
- Authors: Gladkov A.E.1, Maltseva T.V.1, Isakova N.P.1
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Affiliations:
- Industrial University of Tyumen
- Issue: No 4 (2023)
- Pages: 26-33
- Section: CONSTRUCTION
- URL: https://journal-vniispk.ru/2782-232X/article/view/317531
- DOI: https://doi.org/10.31660/2782-232X-2023-4-26-33
- ID: 317531
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Abstract
Experimental studies of processes in soil foundations under load show that soils exhibit viscoelastic properties. The article presents the method for determining the mechanical characteristics of viscoelastic soil. One of the functions, for example, the soil creep function, is obtained from the experimental data of testing a sample for creep. Next, the soil relaxation function was determined using the numerical-analytical method of broken lines. The representation of the creep function in the form of a broken line made it possible to obtain the relaxation function (the inverse function to the creep function in Laplace – Carson images) as a solution of the viscoelasticity problem. Based on the known image of the desired original of the relaxation function in the form of a broken line, a transition from the image to the original was made using the broken line method, which is reduced to a system of linear algebraic equations regarding the desired parameters of the relaxation function. To determine the relaxation function using the proposed method, there is no need to experiment with a soil sample for relaxation. This saves on laboratory experiments. The proposed algorithm is of interest when designing construction projects on weak soil foundations, taking into account the viscoelastic properties of the soil.
About the authors
A. E. Gladkov
Industrial University of Tyumen
T. V. Maltseva
Industrial University of Tyumen
N. P. Isakova
Industrial University of Tyumen
References
Nguyen, P. D. The dependence of the strength properties of soil on its physical state / P. D. Nguyen. – DOI 10.5862/ MCE.35.3. – Текст : непосредственный // Magazine of Civil Engineering. – 2012. – No. 35 (9). – P. 23–28. Liu, E. L. An elastoplastic model for saturated freezing soils based on thermo-poromechanics / E. L. Liu, Y. M. Lai, H. Wong, J. L. Feng. – doi: 10.1016/j.ijplas.2018.04.007. – Текст : непосредственный // International Journal of Plasticity. – 2018. – No. 107. – P. 246–285. Sabri, M. M. Soil-structure interaction: theoretical research, in-situ observations, and practical applications / M. M. Sabri, K. G. Shashkin. – doi: 10.34910/MCE.120.5. – Текст : непосредственный // Magazine of Civil Engineering. – 2023. – No. 120 (4). – P. 12005. Mishra, A. Analysis of creep settlement of pile groups in linear viscoelastic soil / A. Mishra, N. R. Patra. – doi: 10.1002/nag.2976. – Текст : непосредственный // International Journal for Numerical and Analytical Methods in Geomechanics. – 2019. – No. 43 (1). – P. 2288–2304. Liu, J. C. One-dimensional consolidation of visco-elastic marine clay under depth-varying and time-dependent load / J. C. Liu, G. H. Lei, X.-D. Wang. – doi: 10.1080/1064119X.2013.877109. – Текст : непосредственный // Marine Georesour Geotechnol. – 2015. – No. 33 (4). – P. 337–347. Wang, L. Semi-analytical solution for one-dimensional consolidation of fractional derivative viscoelastic saturated soils / L. Wang, D. Sun, P. Li, Yi Xie. – doi: 10.1016/j.compgeo.2016.10.020. – Текст : непосредственный // Computers and geotechnics. – 2017. – No. 83 (1). – P. 30–39. Experiment study of lateral unloading stress path and excess pore water pressure on creep behavior of soft soil / W. Huang, K. Wen, D. Li. – doi: 10.1155/2019/9898031. – Текст : непосредственный // Advances in Civil Engineering. – 2019. – Vol. 2019. – P. 9898031. Experimental research on consolidation creep characteristics and microstructure evolution of soft soil / J. Yuan, Y. Gan, J. Chen. – doi: 10.3389/fmats.2023.1137324. – Текст : непосредственный // Structural Materials. – 2023. – No. 10. 1137324. Мальцева, Т. В. Математическая теория водонасыщенного грунта / Т. В. Мальцева. – Тюмень : Вектор Бук, 2012. – 240 с. – ISBN 978-5-91409-279-2. – Текст : непосредственный. Мальцев, Л. Е. Теория вязкоупругости для инженеров-строителей / Л. Е. Мальцев, Ю. И. Карпенко. – Тюмень : Вектор Бук, 1999. – 239 с. – Текст : непосредственный. Колтунов, М. А. Ползучесть и релаксация / М. А. Колтунов. – Москва : Высшая школа, 1976. – 278 с. – Текст : непосредственный. Безухов, Н. М. Основы теории упругости, пластичности и ползучести / Н. М. Безухов. – Москва : Высшая школа, 1968. – 538 с. – Текст : непосредственный. Maltseva, T. V. Deformed state of the bases buildings and structures from weak viscoelastic soils / T. V. Maltseva, E. R. Trefilina, T. V. Saltanova. – doi: 10.18720/MCE.95.11. – Текст : непосредственный // Magazine of Civil Engineering. – 2020. – No. 95 (3). – P. 119–130.
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