Порівняльний аналіз результатів маркшейдерських та чисельних досліджень перегінного тунелю Київського метрополітену

N. K Bondarenko; O. L Tiutkin

doi:10.15802/stp2022/267934

Authors

N. K. Bondarenko Ukrainian State University of Science and Technologies, Ukraine https://orcid.org/0000-0003-0804-7500
O. L. Tiutkin Ukrainian State University of Science and Technologies, Ukraine https://orcid.org/0000-0003-4921-4758

DOI:

https://doi.org/10.15802/stp2022/267934

Keywords:

comparative analysis, mine surveying measurements, parametric analysis, running tunnel, finite element method, layered massif, shield tunneling

Abstract

Purpose. The article is aimed to perform a comparative analysis of the results of mine surveying and numerical studies of the running tunnel of the Kyiv metro and obtain the reliability of the author’s system of parametric analysis. Methodology. The comparative analysis of the results of research on the displacements of the running tunnel was carried out in two directions. In the first direction, the movement of the lining of the running tunnels between the stations «Slavutych» – «Osokorky», «Osokorky» – «Pozniaky» and «Pozniaky» – «Kharkivska» obtained in the course of mine surveying studies was analyzed. In the second direction, a numerical analysis using the finite element method was performed. For this analysis, models of three lining rings were created. These rings were chosen because the maximum level of vertical movements was observed in them. Their reason is the influence of the engineering and geological conditions of the part of the Syretsko-Pecherska line on the left bank of the Dnipro River. These conditions are characterized by the layering of weak and water-saturated soils (sands of various sizes and densities, sandy loams, light loams and clays). The lining of the real tunnel is a standard structure used for shield tunneling of the Kyiv metro. The models reflect the geometric dimensions of the running tunnels, as well as the deformation characteristics and soil density of the surrounding layered massif. Findings. The authors analyzed the characteristics of the layered massif and the maximum displacements of the running tunnels of the part of the Syretsko-Pecherska line on the left bank of the Dnipro River. In the course of the numerical analysis, the vertical displacements of the models of the three lining rings were obtained. A comparative analysis of the results of mine surveying and numerical studies was carried out. The obtained level of error (up to 15 %) between the results of mine surveying and numerical studies proves that the developed bases of parametric analysis are reliable. Originality. For the first time, the theoretical foundations of parametric analysis for a real underground object were introduced. The author’s developments related to the creation of finite-element models based on the real characteristics of the soils of the layered massif provide a high level of similarity to the results of theoretical developments and instrumental mine surveying measurements. Practical value. It consists in the substantiation of the parameters of the deformed state that occurs in the horizontal working during shield tunneling.

References

Alkhdour, A., Radkevych, A., Tiutkin, O., & Bondarenko, N. (2022). The parametric analysis of the supported circular working interacting with the layered massif. In IOP Conference Series: Earth and Environmental Science (Vol. 970, Iss. 012033, pp. 1-7). DOI: https://doi.org/10.1088/1755-1315/970/1/012033 (in English)

Atkinson, J. H., & Potts, D. M. (1977). Stability of a shallow circular tunnel in cohesionless soil. Geotéchnique, 27(2), 203-215. DOI: https://doi.org/10.1680/geot.1977.27.2.203 (in English)

De Oliveira, D. G. G., Thewes, M., Diederichs, M. S., & Langmaack, L. (2018). EPB tunnelling through clay‐sand mixed soils: Proposed methodology for clogging evaluation. Geomechanics and Tunnelling, 11(4), 375-387. DOI: https://doi.org/10.1002/geot.201800009 (in English)

Do, N., Dias, D., Oreste, P., & Djeran-Maigre, I. (2014). Three-dimensional numerical simulation for mechanized tunnelling in soft ground: the influence of the joint pattern. Acta Geotechnica, 9(4), 673-694. DOI: https://doi.org/10.1007/s11440-013-0279-7 (in English)

Hefny, A., & Chua, H. (2006). An investigation into the behavior of jointed tunnel lining. Tunnelling and Underground Space Technology, 21(3-4), 428. DOI: https://doi.org/10.1016/j.tust.2005.12.070 (in English)

Maidl, B., Herrenknecht, M., Maidl, U., & Wehrmeyer, G. (2012). Mechanised Shield Tunnelling (1st ed.). Berlin: Wiley. DOI: https://doi.org/10.1002/9783433601051 (in English)

Migliazza, M. R., Chiorboli, M., & Giani, G. P. (2009). Comparison of analytical method, 3D finite element model with experimental subsidence measurements resulting from the extension of the Milan underground. Computers and Geotechnics, 36(1-2), 113-124. DOI: https://doi.org/10.1016/j.compgeo.2008.03.005 (in English)

Petrenko, V. D., Huzchenko, V. T., Tiutkіn, O. L., & Tiutkіn, D. V. (2014). Analysis of deformed state structures of the Kyiv metro running tunnels on a transition zone from spondylov’s clay to buchatskiy sands. Science and Transport Progress, 4(52), 127-138. DOI: https://doi.org/10.15802/stp2014/27321 (in English)

Pshynko, O., Radkevych, A., Netesa, M., & Netesa, A. (2020). Problems of development of an underground transport infrastructure of cities. Transport Problems, 15(1), 81-91. DOI: https://doi.org/10.21307/tp-2020-008 (in English)

Yang, X. L., & Wang, J. M. (2011). Ground movement prediction for tunnels using simplified procedure. Tunnelling and Underground Space Technology, 26, 462-471. DOI: https://doi.org/10.1016/j.tust.2011.01.002 (in English)