U-shaped steel arch support is a kind of passive support for underground roof support. It has high tensile strength and compressive strength, and has good toughness performance. It has high supporting
Preparation work before using U-shaped steel arch support
Hot-rolled U-shaped steel arch support for mine roadway support is the U-shaped tunnel roof support that everyone often calls. U-shaped steel is a kind of steel whose cross section resembles the Engli
We have also introduced the knowledge of U-shaped underground roof support before, knowing that it is mainly used for mine roadway, secondary support of mine roadway, and support and support of mounta
Compared with other rigid brackets, it has retractability and stable and reliable bearing capacity, adapts to the load and deformation of soft surrounding rock, high section utilization rate, convenie
1. Check one by one whether the connecting parts and pins of the U-shaped tunnel roof support are complete and fastened, whether the movable cylinder body is damaged or deformed, check whether the sea