Underground roof support has the characteristics of light weight, strong corrosion resistance, easy operation and high strength. Underground roof support is widely used in the support of coal mine tunnels and underground projects such as mines and railways, tunnels and other slopes. The support of the underground roof support essentially uses the hard structure in the surrounding rock to reinforce the external rock mass, and fully utilizes the supporting force of the surrounding rock to form a relatively stable support structure, underground roof support can effectively improve the stability of the surrounding rock of the roadway and ensure the construction. safety.
The underground roof support is a steel with a cross-section shaped like the English letter "U". The cross-sectional shape, geometric parameters and materials of U-shaped steels produced in different countries are different. Underground roof support has the advantages of high initial support force, large support strength, easy installation, and not easy to deform, so it is often used to manufacture tunnel retractable metal supports, used as secondary support for mine tunnels, mine tunnels, and support supports for mountain tunnels Protection and other uses.
The underground roof support of China Coal takes life as its quality. In addition to earning profits in the industry, it is more important to ensure the safety of hundreds of thousands of coal mines and protect the lives of tens of millions of coal miners.
