Numerical simulation of roof bolt system during depillaring operations in bord and pillar panel

DOI

10.2991/rare-16.2016.11How to use a DOI?

Keywords

Bord and Pillar; depillaring panel; full column groutrock bolts; instrumented rock bolt; three – dimensional simulation

Abstract

Roof bolting technology is widely used for support design in an underground coal mine. This paper focused on the numerical simulation considered the behaviour of roof and rock – grout – bolt interaction.Simulation of three dimensional model of depillaring panel with roof bolt support is difficult to simulate. Therefore, an analogy has been developed to replicate three dimensional depillaring panel into two dimension consideredphysico-mechanical properties of the immediate roof, geotechnical property of the mine and bolt and grout properties as an input parameters. A case of depillaring panel has been chosen for study. The simulation of rock bolt gives the result in terms of axial load developed on the bolt with depillaring panel advancement. Field observation of instrumented rock bolt has taken for validation of the numerical model. It has been observed that the maximum load developed on the model is very close to the field data

Copyright

© 2016, the Authors. Published by Atlantis Press.

Open Access

This is an open access article distributed under the CC BY-NC license (http://creativecommons.org/licenses/by-nc/4.0/).

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TY  - CONF
AU  - Hasim Rizwan
AU  - Jaiswal Ashok
AU  - B.K. Shrivastva
AU  - Jena Satyabdi
PY  - 2016/11
DA  - 2016/11
TI  - Numerical simulation of roof bolt system during depillaring operations in bord and pillar panel
BT  - Proceedings of the conference on Recent Advances in Rock Engineering (RARE 2016)
PB  - Atlantis Press
SP  - 69
EP  - 73
SN  - 2352-5401
UR  - https://doi.org/10.2991/rare-16.2016.11
DO  - 10.2991/rare-16.2016.11
ID  - Rizwan2016/11
ER  -