2003•Journal of China University of Mining and TechnologyRequires access

Influence of Key Roof on Rock Burst in Sanhejian Mine

Cao Wei-zhong

Abstract

One of the crucial elements influencing the rock burst is the structure of roof rock stratum, especially the flinty and thick sandstone roof over the coal seam. By experimental research, field measurements for electromagnetic emission around the workfaces and the analysis of the rock burst in mining area, it is indicated that the movement and fracture of key roof stratum have great influence on rock burst. Evaluating and forecasting the danger of the rock burst can be achieved according to the rules of the roof movement and determination.

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Key concepts: Rock burst, Roof, Stratum, Mining engineering, Geology, Coal mining, Geotechnical engineering, Coal