支顶支掩式掩护式放顶煤液压支架的力学特性分析  

Analysing Mechanics Character of Special Canopy and Two-legged Caving Power Support

作　　者：王建[1] 钱洋喜[1] 

机构地区：[1]中煤北京煤矿机械有限责任公司,北京102400

出　　处：《煤矿机械》2009年第4期61-63,共3页Coal Mine Machinery

摘　　要：研究了支顶支掩式放顶煤支架和二柱掩护式放顶煤支架特点,分析了2种类型掩护式低位放顶煤液压支架力学特性,并在同一条件下分析它们的承载力和作用位置以及力平衡区,进行量化比较,提出了支顶支掩式支架架型对于放顶煤工作面来说具有更好的适应性,具有推广前景。The different characteristics of the shield caving power support with a special canopy and two - legged caving power support have been studied. The mechanical properties of two types of shield low position caving power supports have been analyzed. And their load bearing force and acting position as well as the force balance area under the same condition have been analysed, them in quantification were compared. Then shield caving power support with a special canopy has better adaptability for caving work faces were put forward, and has a good popularized perspective.

关 键 词：支顶支掩式 放顶煤支架 支护效率 力平衡区 

分 类 号：TD355[矿业工程—矿井建设]