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3 锚杆杆体的制作锚杆杆体材料的确定取决于不同锚固工程对象,亦即取决于工程所要求的锚杆承载力、锚杆长度、数量以及现场可能提供的施加应力及锁定的设备。锚杆杆体材料可以使用普通钢筋、精轧螺纹钢筋和高强钢丝、钢绞线。在施工方面,短锚杆的制备,安放就位和施加预应力都是较简单的,而长锚杆处理起来就比较困难,因此制作长锚杆最好使用钢丝或多股钢绞线。特别是使用钢绞线,柔性好,便于运输,可以插入钻孔达数十米,即使在较小的操作平台上,不管钻孔的
3 Manufacture of anchor rod body The determination of anchor rod body material depends on different anchorage engineering objects, ie, the anchorage bearing capacity required by the project, the length and number of anchor rods, and the possible application of stress and locking equipment on site. Bolt rod body material can use ordinary steel, fine rolled steel bar and high strength steel wire and steel wire. In terms of construction, the preparation of short anchor rods, placement and prestressing are relatively simple, and long anchor rods are difficult to handle. Therefore, it is preferable to use steel wires or strands of steel strands for long anchor rods. In particular, steel strands are used, which are flexible and easy to transport. They can be drilled up to tens of meters, even on smaller platforms, regardless of the borehole.