1) thrown-off zone
抛掷圈
2) throwing
[英][θrəu] [美][θro]
抛掷
1.
The process of directional blasting is divided into two steps of throwing and sliding and which are calculated by the volume equilibrium method and sliding equation respectively.
文章把定向爆破抛掷堆积过程分为抛掷和滑移阶段 ,分别用体积平衡法和滑移方程进行计算 ,并在一定的条件下进行优化 ,使目前的体积平衡法在理论和应用上都提高了一步。
5) Casting blast
抛掷爆破
1.
By using the casting blast technique in surface mines,a large volume of overburden will be thrown into the mined-out area,making the stripping volume of dragline operation be decreased and the stripping cost lowered.
露天矿采用抛掷爆破技术,可将大量剥离物抛入采空区,使拉斗铲剥离量大为减少,剥离成本大幅度降低。
2.
The development of casting blast technique in open cast mines, the applications of pre-splitting blast and inclined drilling technique, the types of explosive, the parameters of casting blast and its predicted casting results were introduced.
对露天矿抛掷爆破技术的发展、预裂爆破及倾斜钻孔的应用、炸药类型、抛掷爆破参数及预期抛掷爆破效果进行了扼要阐述。
3.
Casting blast is often jointly used with pre-splitting blast.
根据利文斯顿的爆破漏斗理论,说明抛掷漏斗及露天矿抛掷爆破法的基本要素是大装药量,使用铵油类炸药和具备松软破裂的软岩地质条件。
6) vibration index
抛掷指数
补充资料：抛掷
1.投;扔。 2.丢弃;弃置。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条