The advantages and disadvantages of the steel arch support lie in the use of the scene, the differences in each detail will affect the final advantages and disadvantages to play, combined with the actual situation is very important. The overall stiffness of the steel arch support is larger, which can provide greater support strength in the early stage. Section steel arch can bear load earlier than grille steel frame. The steel arch frame can be well combined with anchor rod, steel mesh and shotcrete to form joint support, which can enhance the effectiveness of support, and the stress condition is better. Especially the combination of grille steel frame is best.
Main use of steel arch support is mainly used for secondary support of mine roadway, mine roadway and support of tunnel through mountain. The project is safe and reliable, effectively reducing the occurrence of roof caving and strip side accidents, and improving the stability of the mine ventilation system. The promotion and application of the project has improved the safety production conditions of the mine and reduced the production cost, which is in line with the national policy of replacing wood with steel, and has better environmental protection and social and economic benefits.
