首页>
外国专利>
Method and apparatus for drilling, in particular impact drilling or rotary impact drilling of a hole in soil or rock material
Method and apparatus for drilling, in particular impact drilling or rotary impact drilling of a hole in soil or rock material
展开▼
机译:用于在土壤或岩石材料中钻孔的方法和设备,特别是冲击钻或旋转冲击钻
展开▼
页面导航
摘要
著录项
相似文献
摘要
A method and device for drilling, particularly percussion drilling or rotary percussion drilling a hole in soil or rock material and fixing an anchoring in the hole. To this end, a drilled hole is made by a drill bit mounted on a drill rod. The drill rod, on the rear side facing away from the drilling surface of the drill bit, is surrounded at a distance from the drill bit by an anchoring element whose outside dimension exceeds, at least in part, the circumference of the drilled hole made by the drill bit.
展开▼