冲击加载下矽卡岩破碎能耗与块度关系的试验研究  

Experimental Research on Relationship between Energy Consumption and Fragmentation Size of Skarm Subjected to Impact Loading

作　　者：李启月[1] 顾春宏[1,2] 李夕兵[1] 王卫华[1] 

机构地区：[1]中南大学资源与安全工程学院,湖南长沙410083 [2]湖南有色黄沙坪矿,湖南桂阳424421

出　　处：《矿冶工程》2009年第4期18-20,23,共4页Mining and Metallurgical Engineering

基　　金：国家863项目(2006AA06Z134)

摘　　要：破碎能耗、碎块数量和块度间的关系是岩石破碎的一个基本问题。利用SHPB装置及半正弦波加载,对矽卡岩试样进行冲击破碎试验,采用筛分法获得了破碎岩块的块度分布,从而得到了冲击加载下入射能量与矽卡岩破碎能耗之间的关系,以及矽卡岩破碎能耗、块度分布之间的定量关系。The relationship among energy consumption, amount of fragments and fragment size is a basic question about rock fragmentation. The impact experiment was made on the skarm samples with SHPB equipment and loading a halfsine wave, and the fragment-size distribution of broken rock was obtained by sieving. The relationship between total incident energy under impact and energy consumption during skarm fragmentation, and the quantitative relation between energy consumption and fragment-size distribution are derived.

关 键 词：岩石破碎 试验 破碎能耗 块度分布 

分 类 号：TD231.1[矿业工程—矿井建设]