THE EFFECT OF MESH DEPENDENCY ON THE CAVED MODELLING OF BLOCK CAVING METHOD
Continuous caving is one of important factor for the success of a block caving operation. The caving process can be modelled by using Finite Element Method (FEM) with strain-softening material behavior in Rocscience Phase2 8.0 software. However the results are highly depend on the mesh number (mesh...
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| Format: | Final Project |
| Language: | Indonesia |
| Online Access: | https://digilib.itb.ac.id/gdl/view/26855 |
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| Institution: | Institut Teknologi Bandung |
| Language: | Indonesia |
| Summary: | Continuous caving is one of important factor for the success of a block caving operation. The caving process can be modelled by using Finite Element Method (FEM) with strain-softening material behavior in Rocscience Phase2 8.0 software. However the results are highly depend on the mesh number (mesh dependency). <br />
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This research carried out FEM modelling by using different mesh size (from minimum of 500 elements to maximum of 6000 elements). The modelling showed that the higher the number of the mesh, the higher caved height is obtained. However the more stage performed at the undercut level, the influence of mesh dependency seems to decrease. It also revealed that the stress in a particular point at production level increases as cave front approaches and decreases as cave front passes the point. <br />
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