On the Influence of Longwall Mining on the Deformation of the Operational Excavations

The paper presents the results of numerical modeling of the geomechanical behavior of the system “lava — operational excavation — enclosing potash rock mass” during mining operations. Numerical modeling includes a forecast of the mechanical behavior of the system at all stages of the system existenc...

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Main Authors: Andrey L. Polyakov, Siarhei N. Lapatsin, Maksim S. Mozgovenko, Maksim A. Rachkovskiy
Format: Article
Language:English
Published: National Academy of Sciences of Belarus, State Scientific Institution “The Joint Institute of Mechanical Engineering" 2023-12-01
Series:Механика машин, механизмов и материалов
Subjects:
Online Access:https://mmmm.by/en/readers-en/archive-room-en?layout=edit&id=1891
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author Andrey L. Polyakov
Siarhei N. Lapatsin
Maksim S. Mozgovenko
Maksim A. Rachkovskiy
author_facet Andrey L. Polyakov
Siarhei N. Lapatsin
Maksim S. Mozgovenko
Maksim A. Rachkovskiy
author_sort Andrey L. Polyakov
collection DOAJ
description The paper presents the results of numerical modeling of the geomechanical behavior of the system “lava — operational excavation — enclosing potash rock mass” during mining operations. Numerical modeling includes a forecast of the mechanical behavior of the system at all stages of the system existence: from the natural stress-strain state (SSS) of the rock mass to excavation and safety measures installation, as well as the longwall mining operations. The results of numerical experiments are verified using the data from field studies of convergence of the roof and floor of the operational excavation and the side walls of this excavation. As a result of the studies, it is established that longwall mining has a significant impact on the operational excavation at a distance of about 40 m or less. In addition, the paper describes an algorithm for numerical simulation of the geomechanical behavior of the considered geotechnical system.
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spelling doaj.art-3d9ce999791e4470823b9c0500131a2d2023-12-21T14:14:23ZengNational Academy of Sciences of Belarus, State Scientific Institution “The Joint Institute of Mechanical Engineering"Механика машин, механизмов и материалов1995-04702518-14752023-12-014(65)97105https://doi.org/10.46864/1995-0470-2023-4-65-97-105On the Influence of Longwall Mining on the Deformation of the Operational ExcavationsAndrey L. Polyakov0Siarhei N. Lapatsin1https://orcid.org/0000-0001-5958-7799Maksim S. Mozgovenko2Maksim A. Rachkovskiy3Unitary Enterprise “Institute of Mining”Belarusian State UniversityUnitary Enterprise “Institute of Mining”Belarusian State UniversityThe paper presents the results of numerical modeling of the geomechanical behavior of the system “lava — operational excavation — enclosing potash rock mass” during mining operations. Numerical modeling includes a forecast of the mechanical behavior of the system at all stages of the system existence: from the natural stress-strain state (SSS) of the rock mass to excavation and safety measures installation, as well as the longwall mining operations. The results of numerical experiments are verified using the data from field studies of convergence of the roof and floor of the operational excavation and the side walls of this excavation. As a result of the studies, it is established that longwall mining has a significant impact on the operational excavation at a distance of about 40 m or less. In addition, the paper describes an algorithm for numerical simulation of the geomechanical behavior of the considered geotechnical system.https://mmmm.by/en/readers-en/archive-room-en?layout=edit&id=1891operational excavationlongwall miningconvergencefinite element methodcomputer-aided modelingstress-strain state of rock mass with an underground structure
spellingShingle Andrey L. Polyakov
Siarhei N. Lapatsin
Maksim S. Mozgovenko
Maksim A. Rachkovskiy
On the Influence of Longwall Mining on the Deformation of the Operational Excavations
Механика машин, механизмов и материалов
operational excavation
longwall mining
convergence
finite element method
computer-aided modeling
stress-strain state of rock mass with an underground structure
title On the Influence of Longwall Mining on the Deformation of the Operational Excavations
title_full On the Influence of Longwall Mining on the Deformation of the Operational Excavations
title_fullStr On the Influence of Longwall Mining on the Deformation of the Operational Excavations
title_full_unstemmed On the Influence of Longwall Mining on the Deformation of the Operational Excavations
title_short On the Influence of Longwall Mining on the Deformation of the Operational Excavations
title_sort on the influence of longwall mining on the deformation of the operational excavations
topic operational excavation
longwall mining
convergence
finite element method
computer-aided modeling
stress-strain state of rock mass with an underground structure
url https://mmmm.by/en/readers-en/archive-room-en?layout=edit&id=1891
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