Steel strip is a new type of mine support material. The steel strip is made of rolled steel plates with thickness and width. After cold bending, a steel strip with anchor holes equal to the distance between anchor rods is processed in the middle of the steel strip. The steel belt can be combined with various anchor rods to form an anchor plate bracket. The steel belt connects multiple scattered anchor rods to form an overall load-bearing structure. The steel belt is widely used in coal mine underground tunnels, cutting holes, and Tunnel support in tunnels and other fields is more effective in dealing with unstable surrounding rock.
The technical advantages of shaped steel strips compared with flat steel strips
The bending section modulus of shaped steel strips is increased by 10 times.
, the steel strength is increased by about 10 times.
, the hardening effect during the cold rolling process of profiled steel strips improves the tensile strength.
Profiled steel belt is a new type of mine support material. This product can be used with various anchors to form a combined anchor bracket. The steel belt can connect multiple scattered anchors to form an overall load-bearing structure. Significantly improves the overall effect of the anchor. In incomplete roof rock strata, the steel belt has the best effect on dealing with unstable surrounding rock.
Instructions for use of mining steel belts The anchor beam system not only solves the problem of tunnel support, but can also be used to support other tunnels and chambers with large cross-sections, and can also be used to reinforce landslides, embankments, and dams. The anchor beam system is generally suitable for rock formations with medium stability and below. The application in coal mine tunnel support saves a lot of steel and wood. Compared with the commonly used I-beam steel frame used in mines, the combined technology of profiled steel strips and anchor rods can save nearly one ton per frame. So far, the use of profiled steel strips for steel strips is less expensive than using mined I-beam steel sheds to support each frame. The frame saves nearly 100 kilograms of steel. At the same time, it greatly reduces the labor intensity of workers, improves the working environment of workers, and brings significant economic and social benefits to the efficient and safe production of coal mines.
Zhongxiang W strip steel strip