STUDY OF MESH DEPENDENCY IN NUMERICAL MODELING FOR PILLAR STABILITY ANALYSIS BASED ON MOHR-COULOMB CRITERIA
Stability analysis of pillars is an important step in ensuring the safety and sustainability of underground mining operations using the room and pillar method. In this study, a mesh dependency study was conducted on the stability analysis of pillars. Mesh dependency study is a process to understa...
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| Format: | Final Project |
| Language: | Indonesia |
| Online Access: | https://digilib.itb.ac.id/gdl/view/75416 |
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| Institution: | Institut Teknologi Bandung |
| Language: | Indonesia |
| Summary: | Stability analysis of pillars is an important step in ensuring the safety and
sustainability of underground mining operations using the room and pillar method.
In this study, a mesh dependency study was conducted on the stability analysis of
pillars. Mesh dependency study is a process to understand the influence of the
number of mesh elements on the results of numerical modeling.
In this study, a mesh dependency study was conducted by varying the number of
nodes on the excavation from 50-250, which provided different numbers of mesh
elements in numerical modeling. The rock was assumed to follow the Mohr-
Coulomb criteria, and the data used for modeling and pillar geometry were
secondary data. The results of the numerical modeling concluded that an increase
in the number of mesh elements caused a decrease in the value of Strength Factor
(SF) and Factor of Safety (FoS). |
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