在水文水井中，气动潜孔锤钻进仍可发挥它高效率、高速度的作用。
The air-driven down-hole hammer drilling is still very effective and speedy in well drilling in karst limestone area.
本文论述了潜孔锤钻进的岩石破碎机理以及影响潜孔锤碎岩效果的因素。
This paper discusses the rock crushing mechanism of DTH hammer drilling and factor influencing the effect of DTH hammer broken rock.
钻机可适用多种钻进工艺方法，如合金回转钻进螺旋钻进潜孔锤钻进跟管钻进等。
8 the rig is suitable for various drilling methods such as carbide bit drilling, auger drilling, DTH hammer drilling, follow - up casing drilling, etc. 3.
针对干旱、半干旱地区缺水的特点，结合化探取样的要求，采用全液压车载钻机空气潜孔锤钻进工艺。
This paper discusses the application of full-hydraulic track driller with automobile chassis in the arid and semiarid areas.
本文介绍的采用套管钻进和潜孔锤钻进相结合的复合性钻进工艺，有效地解决了在卵砾石层中钻进的难题。
Difficulties are encountered in drilling in boulder formation are efficiently eliminated by using of a combined drilling technique which combines casing drilling with DTH drilling method.
文中回顾了在建桥工程中，应用风动潜孔锤钻进桥桩桩孔的经验，具体介绍了使用的设备、工具及施工工艺技术。
The experience of pile hole drilling using pneumatic hammer in bridge construction is reviewed. Equipments, tools and techniques are also described in detail.
潜孔锤泡沫钻进技术彻底攻克了潜孔锤在潮湿地层钻进的难关，加深了潜孔锤水下钻进的深度，找到了一条在涌水破碎地层进行潜孔锤钻进的有效途径。
Underhole drilling technology solved the difficulties of drilling in wet layers, deepened the drilling under water, and found an effective method of drilling hi pouring crushing layer.
本文主要论述了空气潜孔锤跟管取心钻进规程。
This paper discusses the procedures of DTH hammer and core drilling with casing.
介绍了用于全面钻进的YZX127型液动潜孔锤的结构特点、性能参数、室内岩样实钻试验效果，展望了其广阔的应用前景。
YZX127 hydro hammer used for full face drilling is described with its structural characteristics, performance parameters and laboratory test results as well as the application prospects introduced.
潜孔锤冲击挤密钻进技术集冲击钻进、振动钻进及空气钻进的优点于一体，钻进效率高，成孔质量好，在土质地层钻进工程中有着广阔的应用前景。
The DTH percussion-compact drilling is a high efficiency technology drilling in soil strata, which use the impact force produced by hammer piston to crush and compact soil.
通过对空气潜孔锤跟管钻进钻具的受力分析，得到影响潜孔锤跟管钻进速度和跟管深度的因素。
By analysis of enforcement of drilling tools of air downhole hammer's following pipe, the factors affecting the drilling speed and depth of the following pipe are obtained.
潜孔锤在高围压条件下钻进，边界条件发生了变化，需要开发新的软件。
When DTH drilling in high confining pressure, its border condition has changed. So new software need to be developed.
本文是以中国水电顾问集团成都勘测设计研究院负责“架空层钻进取心技术研究”项目为依托，研究的主要内容是空气潜孔锤跟管取心钻进技术和新型植物胶冲洗液的开发研究。
The main contents of this thesis are the research of simultaneous casing & coring method by pneumatic Down-the-Hole (DTH) hammer drilling and the innovation of a novel vegetable-gum drilling fluid.
在滑坡及边坡治理中，锚固孔成孔方法主要采用回转钻进或单向潜孔锤进行钻进。
In the landslide and slope management, anchoring drilling methods used mainly Rotary-drilling or one-way Pneumatic DTH for drilling.
贯通式潜孔锤反循环钻进技术是一种先进的钻探方法，适用于复杂地层中的地质勘探以及各类钻孔工程。
The hollow-through DTH hammer drilling techniques with whole hole reverse circulation is adopted, it is proved that this technique can resolve drilling.
贯通式潜孔锤反循环钻进技术是一种先进的钻探方法，适用于复杂地层中的地质勘探以及各类钻孔工程。
The hollow-through DTH hammer drilling techniques with whole hole reverse circulation is adopted, it is proved that this technique can resolve drilling.
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