1) multi-pieces down hole hammer
多头组合式潜孔锤
2) ring combination drowning drift
环式组合潜孔锤
1.
Working principle,structural design,and drilling technology of full diameter ring combination drowning drift is introduced.
论述了大直径嵌岩桩孔钻进的现状、发展趋势,阐述了大直径环式组合潜孔锤的工作原理、结构设计、钻进工艺方法,对设计加工的HC-15型环式组合潜孔锤钻具进行了室内模拟试验,并对试验结果进行分析总结。
3) DTH hammer bit
潜孔锤钻头
1.
The process,impacting concrete slab with tungsten carbide button of DTH hammer bit,was simulating calculated by non-linear finite element software LS-DYNA3D on concrete model,the effects of different target mesh sizes of concrete on impaction force,impact velocity and penetration depth was discussed.
潜孔锤钻头冲击钻进的过程是一个高度非线性、大变形、破坏的过程。
4) hollow DTH
贯通式潜孔锤
1.
The aim of using the hollow DTH reverse circulation sampling drilling technology in the Molybdenum minerals in Henan is to solve the questions existence in drilling, holing and sampling.
三道庄钼矿勘探生产中钻遇的地层非常复杂,采用其他方法均无法实现钻进,经过分析比较,决定采用贯通式潜孔锤反循环连续取心(样)钻进新技术来解决该地层钻进难、成孔难、取样难等三大问题。
5) hollow DTH hammer
贯通式潜孔锤
1.
Air driven hollow DTH hammer is applied,along with a set of dual wall drilling pipe and a specially designed reverse circulation bit,to conduct continuous coring reverse circulation drilling.
气动贯通式潜孔锤与双壁钻杆及专门研制的反循环钻头 (获国家发明专利 )配套使用 ,可实现反循环连续取心 (样 )钻进新工艺 ,连续获取的岩样采取率高 ,品质好 ,代表性强。
6) hollow-through DTH
贯通式潜孔锤
1.
Application of hollow-through DTH to completed strata and improvement of reverse-circulation drilling bit;
复杂地层钻进中贯通式潜孔锤的应用及反循环钻头的改进
2.
Investigation of the Application of Hollow-through DTH Hammer Reverse Circulation Drilling Technique in Mineral Exploration
贯通式潜孔锤反循环钻进技术在矿区勘探中的应用研究
补充资料：TLQ-100型内燃式露天潜孔钻机
TLQ-100型内燃式露天潜孔钻机
叫口~翼铆巍莎端谕攫‘型、叨阅户牺r朽一~一~犷J峨牙...哪:‘洲幽舞
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