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Failure Mechanism of Mountain Tunnel Cutting Face
Failure Mechanism Mountain Tunnel Cutting Face
2013/9/30
A space generates inside the ground by tunnel excavation and so the stress inside the ground surrounding the tunnel would change. This re-arrangement of stress has been investigated by so-called "trap...
Analysis on rock burst danger when fully-mechanized caving coal face passed fault with deep mining
Rock burst Microseism monitoring system Fault Numerical simulation
2012/3/27
When fully-mechanized caving face passed fault, rock burst accidence easily occurred. The SOS microseism monitoring system was applied to monitor the microseismic activities all time occurred in the c...
Distraction in older drivers ?A face-to-face interview study
Driver distraction Older drivers Face-to-face interview Distracting activities Secondary tasks
2012/4/14
The prevalence of older drivers?engagement in distracting activities while driving is largely unexplored. Face-to-face interviews were conducted in the city of Braunschweig, Germany, comparing a sampl...
Adequate air volume in working face after mechanical refrigeration
Mine cooling Required air volume Cost Ansys simulation
2012/3/28
By analyzing the coal mine working face ventilation and cooling cost after mechanical method is adopted for temperature decrease, the relationship between air volume and ventilation cooling cost was e...
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...