The underground roof support is used to support the roadway in the coal mine. Underground roof support is mainly composed of 1 roof beam, 2 supporting legs, 4 clamping cables and 2 bottom plates. Underground roof support is mainly used for secondary support of mine roadway, mine roadway, and support of tunnel through the mountain. It is characterized by high pressure, long supporting time, easy installation and non-deformation.
The application of the underground roof support in the forking point of mining roadway has achieved remarkable results. Compared with its stable and reliable bearing capacity, u-shaped steel support can adapt to the load and deformation of soft surrounding rock, with high utilization rate of section, convenient support, small amount of maintenance, high recycling reuse rate of support, reducing the use of pit wood, and obvious environmental benefits.
The underground roof support is reliable, which can effectively reduce the occurrence of roof caving and sheeting accidents, and improve the stability of mine ventilation system.
