Underground roof support is a kind of passive support for coal mine support. It has high tensile strength and compressive strength, and also has good toughness, high supporting force and strong supporting strength. It can be used multiple times and is widely used. It is used in mine roadways, especially in deep complex roadways and soft coal seam roadways.
The underground roof support is a kind of steel with a cross section like the English letter "U", and sometimes the cross section is in the shape of the Japanese letter "ひ". The main features of the underground roof support: high pressure, long support time, easy installation and not easy to deform. Underground roof supports are used for mine tunnels, secondary support of mine tunnels, and support for mountain tunnels.
Underground roof support , as the main section steel for manufacturing roadway shrinkable metal brackets, are widely used at home and abroad. However, due to the inconsistent understanding of the performance and requirements of the underground roof support itself, the cross-sectional shape, geometric parameters and materials of the underground roof support are not the same in different countries. The underground roof support of China Coal Group has the characteristics of convenient installation, strong supporting effect, strong and durable, uniform focus point, high precision, small error, and good quality. If you have any needs in this regard, please contact us and we will sincerely answer any questions you have.
