Numerical study of acceptable pillar size when mining against a steep fault

DOI

10.2991/iceep-16.2016.69How to use a DOI?

Keywords

fault zone; coal mining; mining stress; coal pillar; numerical simulation

Abstract

This paper used 3# coal seam mining of Mengzhuang Coal Mine as an example and the FLAC3D software was used to analyze the reasonable fault coal pillar width leaving in high angle condition. The results show with the width reducing of coal pillar, the range of concentrate stress before the working face was getting larger meanwhile the phenomenon of stress concentration appeared in the fault zone and the stress concentration had an overlapping trend; the rock displacement of the fault two sides show significant difference. Finally, the coal pillar width was determined not less than 30m providing the theoretical basis for the fault coal pillar leaving.

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/).

Download article (PDF)

TY  - CONF
AU  - Zhong-Si Dou
AU  - Sheng-Quan Zhou
PY  - 2016/11
DA  - 2016/11
TI  - Numerical study of acceptable pillar size when mining against a steep fault
BT  - Proceedings of the 2016 5th International Conference on Energy and Environmental Protection (ICEEP 2016)
PB  - Atlantis Press
SP  - 403
EP  - 407
SN  - 2352-5401
UR  - https://doi.org/10.2991/iceep-16.2016.69
DO  - 10.2991/iceep-16.2016.69
ID  - Dou2016/11
ER  -