The mine roof support has the characteristics of bearing high pressure and supporting for a long time, and is easy to install and not easy to deform. Compared with other rigid supports, mine roof supports are more shrinkable and stable and reliable in carrying capacity, adapting to the load and deformation of soft surrounding rock. The mine roof supports have a high cross-sectional utilization rate, and the support is easy to maintain and small.
Construction of mine roof support
1. Process: Put the middle and waist line → dig the column socket → stand legs → upper beam → reinforcement → back plate (filling)
2. Find out the position of the column socket according to the center line and the design shed distance, and then dig enough depth of the column socket according to the mid-waist line.
3. Draw the position of the waist line on the leg of the column, and place the column in the socket of the column so that the upper waist line of the column is consistent with the upper waist line of the helper.
4. Fix the column with braces to avoid tilting.
5. Check the verticality and torsion of the mine roof support, and adjust it when it exceeds the allowable error range specified in the quality standard. According to the vertical line placed in the middle of the top beam and the horizontal distance between the two column feet, you can know Whether the support is vertical or not, it can be known whether the support is skewed according to whether the line between the center line of the tunnel and the two uprights is vertical.
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