Master the characteristics of high strength of steel arch support. Under the same bearing capacity, the weight of the steel arch support is light; the steel material is uniform and is an ideal elastoplastic body, which meets the basic assumptions adopted in engineering mechanics. Therefore, the calculation result of the steel arch support Accurate and reliable.
The setting of the steel arch support should be set immediately after the excavation to follow the excavation. The effect of steel frame following excavation and delay setting is not the same. Sometimes, in order to reduce the interference between the excavation and the support, the construction process and the distance between the two sections are very large in areas with poor surrounding rocks, which is a disadvantage to the tunnel structure. It is hoped that the units that are digging the right hole should pay attention to it.
Steel arch support is generally used in mine tunnels, secondary support of mine tunnels, and support and support of mountain tunnels. It has the characteristics of high pressure resistance, long support time, easy installation and deformation.
