The Physical Simulation Experiment on the Effect of Mining Height and Critical Layer on Overburden Rock Fracture

DOI

10.2991/icseee-16.2016.93How to use a DOI?

Keywords

fracture, mining height, first sub-key strata, caving zone, fissure zone

Abstract

By employing the physical simulation experiment and theoretical analysis, this paper aims to study the effect of mining height and the first sub critical layer on the evolution law of mining-induced fractures. The mining-induced fracture density, fissure characteristics, height of broken fractures, height of separated strata and their correlation with mining height and the first sub critical layer are analyzed quantitatively. As mining fissure is the key area to gas extraction, the authors fully consider the mining height and the location of the first sub critical layer, so as to determine their relatioinship. Through extracting pressure relief gas in test mine, we have verified the effect of mining height and the first sub key layer on broken fracture height, providing a theoretical basis for parameter arrangement of extracting pressure relief gas.

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  - Shugang Li
AU  - Zhiliang Li
AU  - Haifei Li
PY  - 2016/12
DA  - 2016/12
TI  - The Physical Simulation Experiment on the Effect of Mining Height and Critical Layer on Overburden Rock Fracture
BT  - Proceedings of the 2016 5th International Conference on Sustainable Energy and Environment Engineering (ICSEEE 2016)
PB  - Atlantis Press
SP  - 501
EP  - 510
SN  - 2352-5401
UR  - https://doi.org/10.2991/icseee-16.2016.93
DO  - 10.2991/icseee-16.2016.93
ID  - Li2016/12
ER  -