The underground roof support can be said to be the most important support profile under the coal mine and the key to roadway support. The U-shaped steel support that was laid in advance may have aging and looseness in the coal seam. The U-shaped steel support is shrinkable and can play a supporting role and replace the old with the new!
Underground roof support is a high-efficiency steel with a complex cross-section and high bending resistance. It is mainly used for underground coal mine support. At present, the U-beam has a complete range of specifications and has a leading position in China. As the depth of underground mining in old and new coal mines in China continues to increase, the mine pressure is getting larger and larger, and the original supporting capacity of some coal mine roadways cannot meet the requirements of geological conditions and increasing mine pressure, and the demand for increasing the U-shaped steel strength level is increasing Big.
Underground roof supports are also called mine support steels. They are mainly used to make U-shaped steel supports or arched steel sheds, which are used to support mines and tunnels. Underground roof supports are subject to high pressure, long support time, easy installation and deformation.
