Wire rope safety net to achieve the protection of reinforced slope covered by steel wire rope, which features an open slope can best protect the natural vegetation and vegetation growth conditions, and the implementation of artificial afforestation, environmental protection and disaster management in achieving combine; in passive protection system, the flexible features fully embodies the "softness" of the idea, to achieve effective *, achieve a multiplier effect of Rockfall. Wire rope safety net for the renovation of steel sheet, steel mesh, mesh behind by extrusion mortar after mortar setting fixed, require sufficient cement mortar lying wrapped in protective metal mesh does not rust, protection principle is similar to reinforced concrete. Among them, the steel mesh prior to use anti-rust paint brushes are. Rope Fence, also known as Active Protection Network, including two categories: ordinary steel and high-strength steel wire mesh. Ordinary steel wire rope through a fixed anchor, rather high strength steel wire or rope through steel bolt, special anchor plate and, if necessary, other fixed edge support rope way. Usage For building facilities near the buffer zone of high mountains, the rock fall, flying rocks, avalanches, mudslides * In addition to building facilities, wire rope to avoid disaster destroyed buildings and facilities are the main features of SNS system components and often is the first part of a hit, it must be from the rockfall impact load transfer to the support rope, anchor rope like parts, and eventually passed bolt. Because of wire rope has the ability to absorb a very high strength and elasticity, as long as the rockfall characteristics were correct analysis and the correct system design and selection, in most cases it is maintenance-free.