基于MDA和AOP的软件开发方法

本文讨论了使用MDA的模型转换建立基于方面的分布式应用软件系统的过程,提供了一个良好的开发架构,可以从不同的角度描述模型。     

坚硬岩层巷道掘进合理掏槽方法的研究与应用

针对坚硬岩层巷道掘进中存在爆破效率较低的问题,在会理县兴隆矿业矿山坚硬岩层巷道开挖中进行爆破试验,对混合掏槽、单螺旋形掏槽和正矩形掏槽三种掏槽方式进行分析研究,得到各种不同掏槽形式的爆破试验效果,选取最为合理的掏槽方法和爆破参数.试验表明,采用单螺旋形掏槽的布孔方式,平均循环进尺达到1.7 m,炮孔利用率大于85%,提高了巷道的掘进速度和成巷质量.试验成果可供其他类似工程参考.     

THE MODERATE LONGHOLE BLASTING FRAGMENTATION CONTROL TECHNOLOGY RESEARCH IN UNDERGROUND MINE

The scallop moderate longhole blasting mining method in Da Hong-shan copper mine applications accounted for more than 61% of the total amount of mining, but the large output rate restricts the mines for ore strength, The average lump ore as high as 22.7%. In order to realize the mine production efficient development, the circular moderate longhole blasting technology and field test. The test results show that circular hole blasting can reduce the block rate is reduced to 10.3%, and the traditional scallop moderate longhole blasting mining compared with the average lump ore decreased by 12.4 percentage points. The panel on duty for the day ore quantity increase 152.31t, increase rate is 51.1%. Reduces the handling of large time delay and secondary crushing of explosives and the consumption of detonators, the efficiency of drawing and at the same time, reduce the mining cost , achieved good blasting effect.