Measuremental Principle and Experimental Research of Stope Floor Specific Pressure
The measurement of floor specific pressure is the important project foundation in choosing reasonable pit support, support form and support parameter, and the significant indicator to classify the seam floor. On the basis of principle analysis on floor specific pressure measurement, Daizhuang coal mine in Zibo mining group had tests on the floor specific pressure in 4324 mechanized working face during the first and periodic pressure, the floor (limit) specific pressure, floor allowable specific pressure, floor stiffness and floor allowable stiffness are obtained. At the same time, according to the floor classification standard of gently inclined seam of coal faces, the floor of 4324 working face is classified, and floor suitability of the mechanized support is evaluated. So it is very important for determining reasonable support, support density and avoiding blindly increasing support codes, density and the amount of work of pillar and prop drawing by strengthening the floor specific pressure measurement, coupling with the analysis and application of the floor specific pressure parameter.
ZHANG Xin-guo SHI Jun-wei
Key Laboratory of Mine Disaster Prevention and Control, Qingdao,China
国际会议
International Mining Forum 2010(2010年国际采矿论坛 IMF 2010)
合肥
英文
110-114
2010-09-20（万方平台首次上网日期，不代表论文的发表时间）