According to different classification standards, mining anchors can be divided into many types. According to material classification, they include wooden anchors, steel bar or wire rope mortar anchors, inverted wedge metal anchors, pipe seam anchors, etc. Among them, pipe seam anchors are widely used because of their simple installation and reliable anchoring. Self-spinning anchors are a new type of anchor that adopts a hollow continuous small spinning wire structure and has different construction processes to meet different needs. In addition, there are resin anchors, fast-hardening expansion cement anchors, and double-fast cement anchors.
Mining anchors are widely used in various tunnel support projects such as coal mines, railways, and hydropower. Their advantages include simple operation, low price, and large anchoring force. Specifically, mining anchors do not require machining of the anchoring end and the fastening end, have high material utilization, and are equipped with prestressed gaskets, which are easy to control the installation quality. These characteristics make mining anchors a new type of anchor that saves materials, labor, and equal strength, and have broad application prospects.