Chinese | English |
冰下药包法当流冰面积较大且受阻滞流时,可在冰上作业进行冰下爆破。通常在冰上采用冰穿、铁铤、钢钎穿孔,或用小包炸药连续爆破开挖岀吊放炸药的冰洞。放在冰层下面进行破冰的药包,需作好防水处理,并系在绳索或木杆上,通过冰洞放人冰层下一定深度进行爆破 | subglacial blasting |
在炮孔里下套管的装药过程既费时又费钱 | time-consuming and costly loading process of placing sleeves in the boreholes |
当药包在岩体中爆炸时、炸药在高压力下瞬间转化为高温气体 | When an explosive charge is detonated in rock, the charge is converted instantly to a hot gas at intense pressure |
水下药壶爆破在爆除水下较大孤石、礁石或水底基岩时,也可以采用水下药壶爆破。其作用是改变装药方式,变延长装药结构为集中装药结构,从而加大炮孔的装药量,提高爆破效果。它适用于覆盖层薄、岩层整体性好、硬度在中等以上的岩石 | underwater springing blasting |
水下爆破助爆药包 | water work booster |
水下爆破对工业炸药性能的要求为了保证获得良好的水下爆破效果,所用炸药应具有一定的特殊性能。其要求是: 1. 密度大, 2. 有一定耐水性, 3. 有一定耐水压性, 4. 有一定安全度, 5. 有合适的殉爆距离 | explosive qualification for underwater use |
水下爆破炸药筒 | submarine packing |
水下爆破用炸药在浅水中使用的炸药应具有一定的抗水性能,在深水中则需要有相当高的耐水压性 | explosives for underwater blasting |
水下聚能药包爆破聚能药包端部做成有一定角度的锥体空穴时,聚能效应最佳。在水下爆破中使用聚能药包时,要得到所需的聚能效应,在炸高内必须没有水。聚能药包适用范围为:台阶高度在 15m 以内,水深不超过100m | underwater shaped charge blasting |
炸药爆炸时的气体排放、与采矿和矿物利用导致的下游气体排放相比要少些 | The emissions from explosives are small in comparison to the downstream emissions associated with mining and mineral utilization |
现代用的硝甘炸药可定义为雷管起爆型混合物。其中所含的硝化甘油敏化剂、或作为拓展能量的主要媒介、若适当起爆、雷管起爆型混合物则在爆轰速度下 | Modern dynamites can be defined a cap-sensitive mixtures which contain nitroglycerin as a sensitizer or as the principal means for developing energy, and which, when properly initiated, decompose at detonation velocity |
由于包装不结实和装药方法不当造成的浪费才是眼下的问题 | Wastage arising from packaging weakness and from the charge-ing method was an ongoing problem |
系住下放的药卷 | slung cartridge |
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 |
通常说来、常温下含有很少液体或没有液体的多孔固体炸药、一般不受商业爆破中常见的低温的影响 | Typically, explosives that are porous solids at normal temperatures and contain little or no liquid are relatively unaffected at the normal low temperatures experienced in commercial blasting |