Spiral recoverable anchor rod

The utility model relates to the technical field of geotechnical engineering, in particular to a spiral recoverable anchor rod, belongs to a rotary type recovery technology, and has the characteristics of large pulling resistance and simple driving and pulling construction process and wide market application prospect compared with other rotary type recoverable anchor rods and anchor cables at present. The anchor rod is composed of an anchor head rod, a middle rod and a tail end rod. The anchor head rod is arranged at the foremost end of the anchor rod, all rod sections are connected through threads, and the tail bolt of the tail end rod is tightly connected with a supporting structure by applying prestress through a nut and a bearing plate. 本实用新型涉及岩土工程的技术领域，特别是涉及一种螺旋式可回收锚杆，属于回转型回收技术，相较于目前的其他回转型可回收锚杆锚索，具有抗拔力大且打拔施工过程简单的特点，具有广阔的市场应用前景；锚杆由锚头杆、中间杆和末端杆组成；锚头杆置于锚杆的最前端，各杆节间通过螺纹连接，末端杆尾部螺栓处通过螺帽及承压板施加预应力与支护结构紧密连接。