Preparation work before using U-shaped steel arch support

The assembly of the four-section U-shaped steel arch support must first combine the beams, and then use the front beam frame to do the support arch. After completion, dig the column sockets on the two

U-shaped steel arch support (full name: hot-rolled U-shaped steel for mine roadway support) U-shaped steel is a kind of steel whose cross-section resembles the English letter "U", and sometimes the st

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

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

We have a deep understanding of the appearance and use of U-shaped steel arch support, but we may have a little understanding of the material requirements of U tunnel roof support. Now let's make a de