1) displacing bits
挤密钻头
1.
The thoeretical analysis is made based on the problems present with the method in anchor installation and two types of displacing bits have been designed.
探讨了潜孔锤冲击挤密钻进成孔法的产生、钻进机理及其优点，并就该成孔法在锚杆孔施工中所存在的问题，从理论上进行了分析研究，并据此设计了两种结构的挤密钻头。
3) extruding bit
挤压钻头
1.
The conic extruding bit usually be put into use when adopting percussionrotaryextruding drilling method to drill.
在冲击回转挤压成孔的钻进中通常采用圆锥型的挤压钻头，这种钻头在松软地层中的钻进效率很高，但在高围压下的中、硬塑性地层中的钻进效率明显降低。
4) DRE pile
钻孔夯扩挤密桩
1.
The composite foundation formed by CFG pile and drilling ram expanded pile (DRE pile) which used widely in Beijing area are applied to a project, using CFG pile to minimize the building settlement and DRE pile to improve shallow soil bearing capacity respectively.
介绍了北京地区应用广泛的 2种刚性桩CFG桩和钻孔夯扩挤密桩相结合形成的二元桩复合地基在锦秀馨园工程中的应用 ,其中利用CFG桩控制建筑物沉降 ,利用钻孔夯扩挤密土桩提高浅层土的承载力 ,通过计算得出了最佳设计方案 ,静载荷试验和沉降观测结果表明本工程设计是合理
5) percussion-compact drilling
冲击挤密钻进
1.
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.
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。
2.
In this paper, a model of percussion-compact drilling is set up with ANSYS Finite Element Analysis software.
为了对阶梯式钻头的结构进行优化设计,提高冲击挤密钻进效率,采用Drucker-Prager屈服准则为判据,将土体视为DP材料,冲击钻具视为刚体,利用有限元软件ANSYS建立了冲击挤密钻进有限元模型,基于APDL参数化语言对阶梯钻头的台阶数目及钻头结构尺寸进行了优化设计和试验研究。
6) Down Drilled Hole Dynamic Compaction composite pile
钻孔夯扩挤密复合桩
1.
according to the successful application of Down Drilled Hole Dynamic Compaction composite pile on high-rise buildng foundation,the method of design and construction of this kind of composite foundation are expatiated.
通过钻孔夯扩挤密复合桩地基处理在高层建筑物的成功应用 ,阐述了的钻孔夯扩挤密复合桩地基设计和施工方法 ,结合工程实践 ,阐明了该地基处理工法的特点。
补充资料：挤密碎石桩加固地基
挤密碎石桩加固地基
挤密碎石桩加固地基
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