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

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 syst...

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Main Authors: Oleksii Tiutkin, Nataliia Bondarenko
Format: Article
Language:English
Published: Széchenyi István University 2022-10-01
Series:Acta Technica Jaurinensis
Subjects:
Online Access:https://acta.sze.hu/index.php/acta/article/view/681
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author Oleksii Tiutkin
Nataliia Bondarenko
author_facet Oleksii Tiutkin
Nataliia Bondarenko
author_sort Oleksii Tiutkin
collection DOAJ
description 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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spelling doaj.art-283afa40ba984ee4bb25a66885ed6e6b2022-12-22T02:57:12ZengSzéchenyi István UniversityActa Technica Jaurinensis2064-52282022-10-0115419920610.14513/actatechjaur.00681609Parametric analysis of the stress-strain state for the unsupported and supported horizontal underground workingsOleksii Tiutkin0Nataliia Bondarenko1Department «Transport infrastructure», Ukrainian State University of Science and Technologies, Lazaryan Str., 2, Dnipro, 49010, UkraineDepartment «Transport infrastructure», Ukrainian State University of Science and Technologies, Lazaryan Str., 2, Dnipro, 49010, UkraineAn 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.https://acta.sze.hu/index.php/acta/article/view/681finite element modellinghorizontal underground workingparametric analysisrock massifstress-strain state
spellingShingle Oleksii Tiutkin
Nataliia Bondarenko
Parametric analysis of the stress-strain state for the unsupported and supported horizontal underground workings
Acta Technica Jaurinensis
finite element modelling
horizontal underground working
parametric analysis
rock massif
stress-strain state
title Parametric analysis of the stress-strain state for the unsupported and supported horizontal underground workings
title_full Parametric analysis of the stress-strain state for the unsupported and supported horizontal underground workings
title_fullStr Parametric analysis of the stress-strain state for the unsupported and supported horizontal underground workings
title_full_unstemmed Parametric analysis of the stress-strain state for the unsupported and supported horizontal underground workings
title_short Parametric analysis of the stress-strain state for the unsupported and supported horizontal underground workings
title_sort parametric analysis of the stress strain state for the unsupported and supported horizontal underground workings
topic finite element modelling
horizontal underground working
parametric analysis
rock massif
stress-strain state
url https://acta.sze.hu/index.php/acta/article/view/681
work_keys_str_mv AT oleksiitiutkin parametricanalysisofthestressstrainstatefortheunsupportedandsupportedhorizontalundergroundworkings
AT nataliiabondarenko parametricanalysisofthestressstrainstatefortheunsupportedandsupportedhorizontalundergroundworkings