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Experimental research on the variational characteristics of vertical stress of soft coal seam in front of mining face
Soft coal seam Mining face Vertical stress distribution Layered characteristics Experimental research
2012/3/28
Permeability of coal seam is extremely sensitive to the in situ stress loaded. The techniques of ‘‘Pressure relief’’ have been proved significantly effective in practice to improve the gas permeabilit...
Analysis on relationship between stress and drill cutting weight using numerical modeling–A case study in Jinjiazhuang coal mine
Stress Drill cutting weight Numerical modeling
2012/4/12
The relationship between stress and drill cutting weight (DCW) is studied with numerical modeling and field testing. Jinjiazhuang coal mine 110403 workface is used as a case study. Stress analysis of ...