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The research on the mechanical properties of hard roof in underground coal mining
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Citation (Style = APA)
Sheng, Xu Lin (1989). The research on the mechanical properties of hard roof in underground coal mining. Rock Mechanics as a Guide for Efficient Utilization of Natural Resources
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Sheng, Xu Lin (1989). The research on the mechanical properties of hard roof in underground coal mining. Rock Mechanics as a Guide for Efficient Utilization of Natural Resources
Citation Downloads
Reference Manager (RIS)
SpreadSheed (CSV)
Organization: International Conference on Ground Control in Mining
Pages: 8
Publication Date:
Jan 1, 1989
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Abstract
Abstract
| During the mining course, when the roof above coal seams is constituted by thick and hard sandstone (conglomerate), sudden roof movements often take place with great force and de¬struction which is the biggest danger to the safety and production. Such sever movements of the roof in mining directly relate to the rock mechanical properties which are the main fac¬tors that influences the regularity of hard roof movement and its destruction form. A significient work and important technical way for applying rock mechanics into mining en¬gineering is studying the rock mechanics of the hard roof and altering some of the rock me¬chanic parameters which induce the improvement of the rock properties in order to efficiently control the movement of the hard roof. |
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