At present, Steel Arch Support is used in mine roadway. Steel Arch Support is a passive support for coal mine support. It has high tensile strength and compressive strength, and has good toughness and support. High force, high support strength, can be used multiple times, and is widely used in mine roadways, especially in deep complex roadways and soft coal seam roadways. It is used in the secondary support of mine roadway and the mine roadway of the mountain tunnel.
Compared with other rigid supports, Steel Arch Support has the ability to shrink and stabilize the load capacity. It adapts to the load and deformation of soft surrounding rock, has high section utilization, convenient support for branch support, small maintenance, high recovery rate of bracket recovery, and reduced pit. Wood use, environmental benefits are very obvious.
Steel Arch Support's better state of stress is that it is evenly pressed after the wall is filled and compacted. When the pressure value of the surrounding rock on Steel Arch Support reaches a certain value, the bracket will compress and the surrounding rock acts on the Steel. The pressure on the Arch Support is reduced, thereby preventing the surrounding rock pressure from being greater than the carrying capacity of Steel Arch Support.
