Application of bench caving with medium-length hole method in Xinhua Molybdenum Mine;
中深孔阶段崩落法在新华钼矿的应用
The way of improving medium-length hole blasting effect in mine stope;
提高采场中深孔爆破质量的途径
Application of medium-length hole non-electric blast system in underground;
井下中深孔非电起爆系统的应用
Diagenesis of Liaozhong sag in Liaohe depression and pore evolutionin its middle-deep strata;
辽河坳陷辽中凹陷成岩作用与中深层孔隙演化
The application of the medium and deep hole blasting technique in highway trench blast is set forth in this paper.
阐述了中深孔爆破技术在高速公路路堑爆破中的应用。
Ore-controlling structure rule and blind ore-prospecting of medium-deep part in Xiaoqinling gold orefield——with No.S505 vein as an example in Wenyu gold orefield;
小秦岭金矿田中深部构造控矿规律及盲矿预测——以文峪矿区S505矿脉为例
Development and application of the special chassis for mid-deep well rig;
中深井钻机车专用底盘的研究与应用
The mechanism of middle deep hole smooth blasting are introduced,the technic request are discussed combining engineer example.
详细介绍中深孔光面爆破破岩机理,结合工程实例论述了采用中深孔爆破的技术要求,中深孔光面爆破能提高施工速度,降低成本,在今后井巷工程中等以上稳定岩层施工中可推广应用。
In view of some problems such as high detonator consumption,high ore cost and faulty blasting effect in the course of many open pits producing,taking Nanfeng Open-pit Mine as research object,the experiment of gas interval implement in middle deep hole dry bore is applied and the experiment of gas interval implement in middle deep hole water bore are carried out by improving loading structure.
针对我国许多露天矿炸药消耗大、矿石成本高、爆破效果不十分理想的问题,以本钢南芬露天矿为对象,通过改善装药结构,进行气体间隔器在中深孔干孔的间隔试验应用和中深孔水孔的间隔实验研究。
By the middle deep hole opposite smooth blast can embrasure the utilization ratio of blast hole and the work efficiency,reduce the damage of surrounding rock,which not only can lift the safe parameters of building but also be favour of tunnel suport, cut down the lost of materials and achieve the high production and efficiency of mine.
采用中深孔反向光面爆破工艺,可以提高炮眼利用率,提高单进和工效,同时减少对围岩的破坏,既提高了施工安全系数,又有利于巷道的支护,并降低了材料消耗,实现了矿井高产高效。
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