1) boulder blaster
大块爆破工
2) the second blowing up for the large rock
大块石二次爆破
3) Blasting fragmentation
爆破块度
1.
Based on the fractal characteristics of the blasting fragmentation distribution,the paper derived a relationship between the explosive specific charge and the uniform exponent of the distribution,which is instructive for predicting the fragmentation.
基于爆破块度分布的分形特征,从理论上推导了炸药单耗与爆破块度分布均匀性指数的关系,对爆破块度分布的预测具有重要的指导意义。
2.
This paper verified with grey correlation analysis method that the explosives unit consumption is the main factor affecting the blasting fragmentation and also demonstrated that the adjustment of pattern parameters in blast design is still very important to the control of blasting fragmentation.
采用灰色关联分析方法,确定出申嘉湖高速公路路堑开挖爆破中爆破块度的主要因素为炸药单耗,同时指出,在爆破设计中调整孔网参数,对控制爆破块度仍有重要作用。
5) Blasting fragment
爆破块度
1.
Application of on artificial neural networks to blasting fragment prediction;
人工神经网络在爆破块度预测中的应用研究
2.
8 detonator as blasting source in deepwater condition which is simulated by explosion vessel,then the blasting fragments are collected and analyzed statistically.
利用爆炸容器模拟深水条件,以8号雷管作为爆源进行了水泥砂浆试件爆破试验,收集爆破碎块进行统计,根据分形理论计算了爆破块度在不同模拟水深条件下的分形维数。
3.
The instantaneous and millisecond blasting crater model experiment of frozen sand is conducted at -17℃, and the blasting fragments are collected and statistically analyzed.
对冻土进行了一次起爆、孔内微差爆破漏斗试验,收集爆破块度进行筛分统计,根据分形理论,计算了冻土爆破块度的分形维数。
6) blasting demolish
分块爆破
补充资料:大块
大块
boulder
dokU01大块(boulder)超过爆破后续生产工序所允许最大尺寸的矿岩块度。确定大块的方法有:(l)矿岩用挖掘机械铲装时,可由设备斗容V来确定,用L表示大块尺寸,L妻0.5号气牙便是大块。(2)矿岩需经过初碎机或溜井放矿闸门、格筛时,凡超过允许的最大给矿块度的矿岩,便是大块。(3)凡超过输送机允许的岩块也为大块。 大块的产生受矿岩构造及性质,采用的爆破方法及凿岩爆破参数、爆破工艺,使用的爆破器材等诸多因素的影响,因此,实际爆破中很难做到完全不出现大块。大块严重影响采掘生产率,并会带来危害,必须妥善处理。 矿山爆破大块率尸一V/V。X100%。式中V为大块体积之和,m3;V。为崩落矿岩体积,m“。对出现的大块,一般多用二次爆破和碎石机来处理。 (曾世奇)
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