pile hole

Three-Axis Automatic and Wireless Real Time Verticality Adjustment System and Method Study on Steel Column Interpolated in Pile Hole

桩孔内插钢立柱三轴自动无线实时调垂系统及方法研究

The experience of pile hole drilling using pneumatic hammer in bridge construction is reviewed. Equipments, tools and techniques are also described in detail.

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。

Development of core drill equipment for combined underwater drill rammer of rock built-in pile hole

嵌岩桩孔组合潜孔锤取心钻具的研制

Pile hole construction technique in deep bouldery formation

深厚卵砾石层桩基成孔技术

APPLICATION OF THE PERCUSSIVE REVERSE CIRCULATION DRILLING IN DRILLING A LARGE DIAMETER PILING EMBEDDED ROCK Status Quo and Trend of Percussive Reverse Circulation Pile Hole Drill Rigs in China

冲击反循环技术装备在大口径嵌岩钻进中的应用我国冲击反循环桩孔钻机现状与发展

The exploration of the pile hole construction technique in the rosary karst and the bad geographical places with rich underground water

串珠岩溶和富水不良地质桩基成孔技术探讨