As the supporting equipment for industrial and mining, the support arch makes coal mine work more smoothly and protects the safety of coal mine workers. Support arch has the advantages of high initial support, strong support strength, easy installation, and non-deformation. Therefore, support arch is often used to make roadway shrinkable metal support for mine roadway, mine roadway secondary support, and mountain tunnel support. And other purposes.
The support arch is a kind of steel whose cross section is shaped like the English letter "U". The cross-sectional shape, geometric parameters and material of U-shaped steel produced in various countries are different. The arch support is composed of top beams, column legs, connectors, connectors, backing materials and other parts. The backing material is the filling material between the support arch and the surrounding rock. The purpose is to make the arch support close in contact with the surrounding rock, improve the stress condition of the support, increase its bearing capacity and maintain the stability of the surrounding rock. The arch support must be reasonably calculated during the design and should be used reasonably to ensure safe production in the mine and increase economic benefits.
As a retractable support, the support arch can better solve the problem of tunneling and support. The support arch can adapt to the load and deformation of the soft surrounding rock, the section utilization is high, the support is easy to support, the maintenance is small, the support recovery and reuse rate is high, the use of pit wood is reduced, and the benefits are very obvious.
