Study of Asymmetric Failure Law and Support for Large Embedded Depth Roadway Driving along the Roof in Inclined Coal Seam

DOI

10.2991/mining-14.2014.31How to use a DOI?

Keywords

inclined coal seam, large embedded depth, Elastic-Plastic analysis, numerical simulation analysis, asymmetric deformation, combined support.

Abstract

The roadway driving along the roof for large embedded depth often had irregular failure in inclined coal seam at one coalmine, in order to analyze the failure law of roadway, this paper adopted the method of elastic-plastic analysis and numerical simulation to study the stress, plastic zone and deformation of roadway in inclined coal seam when the embedded depth of roadway is 1000 m. it can be concluded that the stress peak position and plastic region of high side are greater than the low side, the low side in the upper and high side in the lower part are the large area of roadway deformation. Based on the damage characteristics, this article puts forward the support scheme, which is combined support of bolt-mesh-anchor and reinforce the support to the high side with the anchorage cable. It obtains a good supporting effect and provides a new way for support design of large embedded depth roadway in inclined coal seam.

Copyright

© 2014, 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  - Guoqiang Cheng
AU  - Mingju Yan
AU  - Hongli Zhu
AU  - Haifeng Yu
PY  - 2014/10
DA  - 2014/10
TI  - Study of Asymmetric Failure Law and Support for Large Embedded Depth Roadway Driving along the Roof in Inclined Coal Seam
BT  - Proceedings of the Taishan Academic Forum – Project on Mine Disaster Prevention and Control
PB  - Atlantis Press
SP  - 195
EP  - 202
SN  - 2352-5401
UR  - https://doi.org/10.2991/mining-14.2014.31
DO  - 10.2991/mining-14.2014.31
ID  - Cheng2014/10
ER  -