1) flowdrill
挤钻
1.
A new pressing method is introduced, by which the metal material of pressing products is extruded with a special flowdrill.
介绍一种在板金制品上采用特制挤钻进行挤(旋)压加工的新型工艺方法。
2) 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) drilling tool jamming accident
挤夹钻具事故
1.
According to the borehole diameter shortening and drilling tool jamming accident in Yilan,the basic reason was thought to be rapidlythickening mud cake on the wall of borehole in crack development in some rock stratum with high permeability and absorbency,but not to be rock expanding.
针对依兰煤田钻探施工中出现的钻孔缩径挤夹钻具事故,提出产生事故的根本原因不是因岩层本身膨胀所致,而是由于某种岩层裂隙发育,渗透性良好,吸水性强,使钻孔孔壁泥皮迅速增厚所致,并提出预防事故的具体措施。
6) 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
补充资料：冻土钻(见取土钻)
冻土钻(见取土钻)
dongtuzuan冻土钻见取土钻
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