Everyone is using a drill pipe, but do you know how to set up a drill pipe?

　　First of all, the density principle that drill pipe support should follow is the low support density principle. The pre-tightening force, strength, and stiffness of a single drill pipe should be increased as much as possible, and the support density should be reduced under the conditions of ensuring the support effect and safety. The density matches the drill pipe pre-tightening force, strength, and length, and the supporting density matches the composite member.

　　At the same time, follow the principle of one-time support, and the principle of high preload and preload spread

　　The principle of three high and one low, the principle of critical support strength and rigidity, and the principle of mutual matching. The drill pipe and the supporting plate, nut, steel belt, and anchor cable parameters should match each other. The principle of operability, the provided drill pipe support design is operable, which is conducive to the improvement of the speed of underground construction management. Under the conditions of ensuring the effect and safety of roadway support, technically feasible, and operable in construction, it is economical and reasonable, which will help reduce the comprehensive cost of roadway support.