Support arch are mainly used in scenes such as underground tunnels and roadway support in coal mines; stable performance, reasonable structure, excellent strength and rigidity, and meet various industrial production standards; light unit weight, small unit weight, complex deformation, rolling road There are many times, the temperature of the rolled piece is reduced quickly, and the rolled piece is not easy to go off the groove.
Support arch is a common profile in the current mining industry and coal support field. This type of steel is similar to "U" because of its cross section. Support arch is mainly assembled after bending and welding. Support arch is often used for mine tunnels, secondary support of mine tunnels, and support for mountain tunnels. Its advantages are high pressure, long support time, easy installation and not easy to deform. The common materials for arch brackets are Q235 carbon, 20Mnk. In practical applications, for formations with a lot of water in the tunnel and a humid environment, 20Mnk material is often used as the first choice. Ordinary shallow ground support, Q235 is the mainstream in dry conditions.
The Support arch structure is reasonable, easy to assemble and disassemble and use, large carrying capacity, significant supporting effect, can adapt to dynamic pressure, soft rock and broken zone roadway support, and reasonable cost control, saving raw materials to the greatest extent, and improving cost performance for customers .
