An active protection system primarily utilizes steel wire rope nets-along with various other types of flexible netting-to cover and envelop the specific slopes or rock faces requiring protection. Its purpose is to restrain the weathering, detachment, or deterioration of surface rock and soil (providing a reinforcement effect), or to confine the movement of falling rocks within a specific range (providing a containment effect). Construction materials for slope protection netting include steel wire rope nets, standard steel wire grids (commonly referred to as iron wire grids), and high-strength TECCO steel wire grids.
Structure: The first two types are secured using steel wire rope anchors and/or support ropes; the latter is secured using steel reinforcing bars (which can be prestressed) and/or steel wire rope anchors (utilized when perimeter support ropes are present), specialized anchor plates, and-where necessary-perimeter support ropes.
Product Application: The system's open structure allows groundwater to drain freely, thereby preventing slope instability issues caused by increased groundwater pressure. In addition to contributing to slope stabilization, the system also inhibits further weathering and erosion of the slope surface. Furthermore, it imposes no specific requirements regarding the morphological characteristics of the slope; it neither damages nor alters the slope's original landform or the conditions necessary for vegetation growth.
This open structure preserves the necessary conditions for future artificial slope revegetation efforts, should conditions permit and the need arise. Green vegetation can grow freely within the open spaces of the system, allowing the soil-binding effect of plant root systems to integrate seamlessly with the slope protection system. This integration effectively inhibits slope deterioration and soil erosion, while simultaneously preserving the natural landform and slope vegetation, thereby achieving optimal objectives for both slope protection and environmental conservation.