Support arch is also known as u-shaped steel and v-shaped steel for mining. Support arch belongs to steel series and is special steel for coal mine support. Its shape is v-shaped. This kind of product often makes arc in mine, the leg and beam arc connection, can bear very big mine pressure and perk load.
U-shaped steel support arch
1. U-shaped support arch is suitable for roadway with long service time, unstable surrounding rock, great influence of dynamic pressure, deformation greater than 400mm and no floor heave.
2. U-shaped support arch is suitable for roadway with long service time, unstable surrounding rocks, large impact of dynamic pressure, deformation greater than 800mm and floor heave.
3. U-shaped steel square and annular yielding ring support is suitable for roadway with long service time, unstable surrounding rock, great influence of dynamic pressure, deformation greater than 1000mm and floor heave.
