Estimating support pressure with finite element and convergence-confinement method for different rock masses

Hüseyin Onur Dönmez*, Hakan Tunçdemira

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

Abstract

Support pressure is a key factor in the stability of the excavation area during mining and tunneling. The vital thing desired in an underground engineering structure is to ensure that the structure survives safely throughout its lifetime. For this reason, choosing the right support system at the planning stage is very important for the pressure that will affect the support system must be determined with a certain convergence. This article aims to discuss the support pressures by the finite element method and convergence-confinement method and compare the results. A series of two-dimensional finite element models are established to analyze support pressure with different rock masses selected from the literature. The results reveal that the convergence-confinement method and the finite element method have high-order relationships regarding support pressures and displacements for weak rock masses. Therefore, it shows that support pressures and displacement values for similar conditions can be estimated by the convergence-confinement method, which is more practical than the finite element method.

Original languageEnglish
Pages (from-to)99-108
Number of pages10
JournalScientific Mining Journal
Volume62
Issue number3
DOIs
Publication statusPublished - 20 Oct 2023

Bibliographical note

Publisher Copyright:
© 2023 Union of Chambers of Engineers and Architects of Turkey. All rights reserved.

Keywords

  • Convergence-confinement method
  • Finite element method
  • Support pressure
  • Tunneling
  • Underground mining

Fingerprint

Dive into the research topics of 'Estimating support pressure with finite element and convergence-confinement method for different rock masses'. Together they form a unique fingerprint.

Cite this