Parametric analysis of the stress-strain state for the unsupported and supported horizontal underground workings

Oleksii Tiutkin; Nataliia Bondarenko

doi:10.14513/actatechjaur.00681

Authors

Oleksii Tiutkin Department «Transport infrastructure», Ukrainian State University of Science and Technologies, Lazaryan Str., 2, Dnipro, 49010, Ukraine
Nataliia Bondarenko Department «Transport infrastructure», Ukrainian State University of Science and Technologies, Lazaryan Str., 2, Dnipro, 49010, Ukraine

DOI:

https://doi.org/10.14513/actatechjaur.00681

Keywords:

finite element modelling, horizontal underground working, parametric analysis, rock massif, stress-strain state

Abstract

An analysis of analytical and numerical approaches to the problem of determining the stress-strain state of underground workings has been carried out. A system of parametric analysis of the stress-strain state of unsupported and supported horizontal underground workings has been developed. This system proved that to determine the stress-strain state of horizontal unsupported workings of a certain diameter, it is enough to perform one numerical calculation of a finite-element model with unit parameters, and using simple analytical formulas, extrapolate the stress-strain state of this model to all possible cases of real workings. Finite element models of underground workings were developed to justify the author’s system. A method of parametric analysis of the strained state of a supported working by using models with equivalent bending stiffness has been developed and substantiated. On its basis, it is possible to perform a numerical analysis of a finite-element model with unit parameters of the frame, selecting the equivalent modulus of elasticity.

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References

D. Kolymbas, Tunnelling and tunnel mechanics, Springer-Verlag Berlin Heidelberg, 2005.

S. J. Singh, Static deformation of a multilayered half-space by internal sources, Journal of Geophysical Research 75 (1970) pp. 3257–3263. https://doi.org/10.1029/JB075i017p03257

M. R. Migliazza, M. Chiorboli, G. P. Giani, 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) (2009) pp. 113–124. https://doi.org/10.1016/j.compgeo.2008.03.005

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

D. G. G. de Oliveira, M. Thewes et al., EPB tunnelling through clay‐sand mixed soils: Proposed methodology for clogging evaluation, Geomechanics and Tunnelling, 11 (4) (2018) pp. 375–387. https://doi.org/10.1002/geot.201800009

V. D. Petrenko, V. T. Huzchenko et al., 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) (2014) pp. 127–138. https://doi.org/10.15802/stp2014/27321

A. R. Selby, Surface Movements Caused by Tunnelling in Two-layer Soil, Geological Society, London, Engineering Geology Special Publications 5 (1988) pp. 71–77. https://doi.org/10.1144/GSL.ENG.1988.005.01.05

N. Do, D. Dias et al., 2D Tunnel Numerical Investigation: The Influence of the Simplified Excavation Method on Tunnel Behaviour, Geotechnical and Geological Engineering 32 (2014) pp. 43–58. https://doi.org/10.1007/s10706-013-9690-y

M. Karakus, Appraising the methods accounting for 3D tunnelling effects in 2D plane strain FE analysis, Tunnelling and Underground Space Technology 22 (1) (2007) pp. 47–56. https://doi.org/10.1016/j.tust.2006.01.004

A. Alkhdour, A. Radkevych et al., Prediction of the stress-strain state of circular workings in a layered massif by scaling, E3S Web of Conferences 168 (2020) 00020. https://doi.org/10.1051/e3sconf/202016800020

A. Alkhdour, A. Radkevych et al., The parametric analysis of the supported circular working interacting with the layered massif, IOP Conference Series: Earth and Environmental Science 970 (2022) 012033. https://doi.org/10.1088/1755-1315/970/1/012033

O. M. Shashenko, S. M. Hapieiev et al., Analysis of calculation models while solving geomechanical problems in elastic approach, Scientific Bulletin of National Mining University 1 (169) (2019) pp. 28–36. https://doi.org/10.29202/nvngu/2019-1/21