The U-shaped steel arch support is a kind of steel with a cross-sectional shape like the English letter "U". The cross-sectional shape, geometric parameters and material of U-shaped tunnel roof support produced in various countries are different. U-shaped steel mine supports has the advantages of high setting force, strong support strength, easy installation, and non-deformation.
Therefore, it is often used to make roadway shrinkable steel mine supports for mine roadway, secondary support of mine roadway, and support support for mountain tunnels. Protection and other purposes.Do you know the precautions for raising the U-shaped steel arch support? Come and see with me
1. When raising the U-shaped tunnel roof support, pay attention to the extension of the side guards to prevent the side guards from being damaged during the lifting, resulting in the phenomenon of pressing and climbing.
2. When raising the U-shaped steel arch support, when the bracket is connected to the top, the operating handle should be held for 2-3 seconds before stopping the liquid supply, so that the column can reach sufficient setting force, and the bracket should be in close contact with the top plate.
3. When raising the U-shaped steel arch support, pay attention to observe the adjacent brackets to prevent the bracket from being bitten, and the side guards should be extended in time.
