Chinese | English |
不按质量分等级的 | run-of-the mine |
凿石中的岩石质量指数 | rock quality index in drilling |
可看见的爆破后物质总量 | total visible blasted material |
向量的峰值质子速度 | vector peak particle velocity |
对破岩的质量评价 | qualitative evaluation of fragmentation |
影响钻孔质量的因素 | factors influencing drill performance |
炸药的绝对质量威力 | absolute mass strength of an explosive |
爆破中所用的炮泥类型和分量以及对阶梯地形的处理、会大大地影响抛向空中的物质的多寡、因此也大大地影响一次爆破中可能喷出的飞尘比例 | The type and adequacy of the stemming material used and the management of progressive relief during detonation have a strong influence on the amount of material thrown into the air and hence the proportion of dust likely to be emit ted from a blast |
爆破施工质量的评估 | assessment of the quality of a blast operation |
由于膨胀气体挤压这种物质、致使能量损失速度快、爆后产物的压力和温度迅速下降。这些损失作为膨胀波传到反应区之内、因而降低了压力和反应速率、且最终消除了对爆震波面传播的能量支持 | As the expanding gases compress such material, energy is lost rapidly and pressure and temperature drop sharply in the reaction products. These losses are communicated to the interior of the reaction zone as a rarefaction wave, lowering the pressure and reaction rate, and ultimately removing support far the propagation of the detonation front |
确定钻头的质量偏差 | identify drill quality deviations |
调查结果表明、飞石事故是由以下一个以上的因素促成的: 地质及岩石结构的非连续性、炮孔布置和装药量不适当、抵抗线不足、炸药能量高度集中、填塞不足 | Investigations of flyrock accidents have revealed one or more of the following contributing factors: I discontinuity in the geology and rock structure,II improper blast hole layout and loading, III insufficient burden, IV very high explosive concentration, and V inadequate stemming |
质量可靠的 | high-test |
除了与地质和距离有关的因素外、还有一些因素与爆破作业设计直接相关。其中最重要的是每次延迟的最大装药量、即每次要爆炸的炸药最大量有时标明为每8毫秒间隔爆炸的炸药量 | In addition to factors that are related to geology and distance are those factors that are related directly to the design of blasting operations. The most important of these is the maximum charge weight per delay: that is, the maximum quantity of explosive that detonates at one time sometimes specified as being that which detonates within any eight millisecond period of time |
飞石产生的主要原因包括抵抗线不足、炮泥长度不够、钻孔不精确、单位炸药消耗量过多、地质条件不利露天节理、矿层不稳固和空穴、延时定时和序列不当、延时不精确、发生反向爆破、以及台阶上部岩石松散等 | The major causes of flyrock are inadequate burden, inadequate stemming length, drilling inaccuracy, excessive powder factor,unfavorable geological conditions open joints, weak seams and cavities, inappropriate delay timing and sequence, inaccuracy of delays, back break and loose rock on top of the bench |