$Deep-hole directional fracturing of thick hard roof for rockburst prevention$

Deep-hole directional fracturing of thick hard roof for rockburst prevention

Thick hard roof in coal mines is usually a significant factor that induces dynamic disasters, such as rockburst. This study introduces a new technology called directional hydraulic fracturing characterized by cutting out an initial groove in the borehole and then injecting high pressure liquid to br...

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Veröffentlicht in:	Tunnelling and underground space technology 2012-11, Vol.32, p.34-43
Hauptverfasser:	He, Hu, Dou, Linming, Fan, Jun, Du, Taotao, Sun, Xinglin
Format:	Artikel
Sprache:	eng
Schlagworte:	Applied sciences Buildings. Public works Computational fluid dynamics Directional fracturing Exact sciences and technology Fluid flow Fracture mechanics Fracturing Geotechnics Grooves Hard roof Initial groove Liquids Microseismic Miscellaneous Rockburst Rockbursts Roofs Soil mechanics. Rocks mechanics
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