1, the roof support of the mine strong compression resistance, a good lane.
The mine roof support of roadway is tightly connected with iron clip, so that the support structure is rigorous and the pressure under the support is not concentrated. The reason is that the force distribution shape of arch arc is similar to that of natural arch of roadway stress, and the force of support is relatively uniform, which is much stronger than that of previous wooden ladder shed and I steel trapezoidal plane support. Because the roadway mine roof support is not easy to deform, compression durability: not like the wooden shed beam broken leg, not like I steel shed beam bending, collapse of the mouth to meet the stuck leg, relatively prolonged the support time, reduce the roadway recovery overturning maintenance, increase the service life.
2. Large safety factor and strong disaster resistance of mine roof support.
Mine roof support with two iron clips on each side of the connection, so that the support structure is rigorous, beam legs tightly combined into a body, the overall binding force is strong, the legs are not easy to be knocked off, even if there is water to pull the suspension, arch canopy with its own arch dispersion compression performance, support is not easy to sink substantially, and the fall causes the head.
3. Mine roof support is safe and smooth and easy to walk.
When the support pressure is high and the mining height is not high enough, the original section can still be restored by means of bottom drawing, and the support structure is not easy to change, and the original support strength is almost unchanged.
4, the mine roof support to reduce the high roof, easy to fire.
The use of mine roof support less times of recovery, coupled with metal net laid on the roof, the possibility of easy to fall on the roof is less. As long as a good control when forming a roadway, reduce the roof elevation, relatively reduce gas accumulation and fire smoke.
