兴安矿单一层工作面液压支架选型

Hydraulic Support Type Selection of Single Layer Working Face in Xing'an Coal Mine

煤矿综合机械化开采,对液压支架的选择和使用显得尤为重要,根据国内外使用液压支架的经验表明,支架架型的选择主要决定于矿山地质条件,特别是顶板的性质,它直接影响支架的架型和工作阻力。应将煤层厚度、煤层倾角、原煤炭部颁布的支护强度与顶板等级关系对照表作为选择何种类型支架的依据。通过对支撑强度、初撑力、支架高度等基本参数的计算,最后确定采用何种规格型号作为该工作面待用支架。

Its′much more important to choose hydraulic support and use it,because of coalm ines comprehensive mechanical exploiting.The experience of using hydraulic support at home and abroad proved that choose the type of the hydraulic supportmainly depend on the cond ition of geology,especially the character of roof.Because it can effect on the type of hydraulic support and its working resistance.The depth of coal bed and its grad ient angle,the table of comparison about the class between support strength and roofwhich was published by formerm inistry of coal industry as the proof for choosing it.In the end,we determ ined which type should be chosen for ready to use in the working sur-face by calculating the basic parameter of support strength,initial support stress and the height of hydraulic support.