U-shaped steel arch support is a kind of passive support for underground roof support. It has high tensile strength and compressive strength, and has good toughness performance. It has high supporting force and strong supporting strength. It can be used multiple times and is widely used. It is used in mine tunnels, especially in deep complex tunnels and soft coal seam tunnels.
U-shaped steel arch support are mainly used for secondary support of semi-finished U-shaped steel supports and mine roadways of tunnels.
The best stress state of the U-shaped steel arch support is that the main material of the U-shaped steel bracket—the U-shaped steel is uniformly compressed after the wall is densely packed. When the pressure value of the surrounding rock used on the U-shaped steel mine supports reaches a certain value, the bracket will produce Compression reduces the pressure of the surrounding rock acting on the U-shaped steel bracket, thereby avoiding the damage of the bracket due to the surrounding rock pressure being greater than the bearing capacity of the U-shaped steel bracket.
According to the specific situation of the site, flexibly choose the model, structure and shed distance of the U-shaped underground roof support, and correctly guide the construction of the U-shaped steel support in the roadway to ensure its effective and reliable work. It will speed up the roadway excavation speed and reduce the amount of repairs in the later stage of the roadway. Safe production, extended service life, better technical and economic benefits, and full play of the supporting performance of the bracket are of great significance.
Compared with other rigid supports, the U-shaped underground roof support has a shrinkable and stable and reliable bearing capacity, adapts to the load and deformation of the soft surrounding rock, has a high section utilization rate, is convenient to support the support, and the maintenance amount is small. The bracket recovery and reuse rate is high, and pits are reduced. The use of wood has obvious environmental benefits.
China Coal Support has been engaged in mining support materials and mining underground roof support processing for many years, and has rich experience. If you have a demand for bolts, you are welcome to inquire. We believe: With your suggestions and help, we will do better.
