土层扩大头锚杆扩孔钻具的研制

Development of Reaming Drill with Enlarge Head Anchor in Soil

通过分析土层扩大头锚杆施工方法,设计了适合机械扩孔的施工钻具,应用表明,该钻具可解决土层扩大头锚杆施工难题,降低成本,提高工效。

By the analysis on the construction process of enlarge head anchor in soil, the boring tool suitable to hole-enlar- ging was designed. The practice shows that the tool can solve the construction difficulties of enlarge head anchor in soil with high efficiency and low cost.