? Categories: active protection and passive protection. Slope protection net use in highway railroad Landslide. The reason causing the highway slope protection net of high slope revetment are: 1, the foundation is unstable roadbed under natural sliding body; 2, the slope is too steep on both sides of the road; 3, the wrong way to filling level with tilt embankment; 4, the soil is too wet, reduce internal friction and cohesion; 5, the toe is washed in water. 6, due to the construction of the highway after, the stability of individual lots of rock destruction, particularly the rock tilt toward the direction of the cut, and then there is the action of water or when the damage caused by the earthquake. 7. The structure and composition of the rock itself is unstable mountain road on both sides. 8, mudslides caused by sabotage. Active Slope Protection Network About Active Protection Active Protection System is mainly of various types of flexible steel wire rope net covering wrapped in protective slope or rock needed to limit the slope rock weathering or damage to soil and rock collapse ( strengthening the role), or the rockfall control within a certain range of motion (envelope effect). Both former structure through wire rope anchor and / or support rope fixed way, the latter through reinforcement (can be prestressed) and / or wire rope anchor (when using edge support rope), dedicated anchor plate and the edge, if necessary support rope fixed way. Features with high flexibility, high protection strength, easy spreading. Adapt to any terrain slope, the installer standardized and systematic. The system uses die-cutting of installation, short duration, low construction costs. Special manufacturing processes and high corrosion preventive materials technology systems, determines the ultra life of the system. Systems engineering team can impact on the environment to a minimum, the protection zone can adequately protect the soil, rock solid, easy to artificial green, environmentally friendly. Similar spray anchor and soil nailing wall and other surface slope system on the role of principle, but because of the flexible features make the system both locally concentrated load to the surrounding material: steel wire rope, ordinary steel grille (often called wire grill) and TECCO High strength steel grille guard uniform transfer to full capacity of the entire system, ie locally under load, the overall effect, so that the system can withstand greater loads and reduce single bolt anchoring force requirements. Uses open system, groundwater can freely excreted, to avoid the problems caused by rising groundwater slope instability caused by pressure; the system in addition to the contribution to the stability of the slope has some outside, while inhibition of the slope suffer further weathering and erosion, and the morphology of the slope, no special requirements, does not destroy and change the slope of the original topography and vegetation growth conditions, characterized by its openness and to subsequent or conditional green artificial slope when needed in the future to retain the necessary conditions , green plants can grow freely in its open space, the role of the solid earth and slope protection plant root system became one, thus inhibiting the slope destruction and soil erosion, which in turn protects the slope topography and vegetation, to achieve the most Best of slope protection and environmental protection purposes. General model: system support rope wire rope anchor + + suture rope, opening the pit + tension [or edge (along) the anchor (anchor 2-4m cable from 4.5m) + vertical and horizontal support rope (∮12- ∮16) + wire rope (◇ 08/300/4 * 4 m) + suture rope (∮8)] Active Protection Network main models: GAR1, GAR2, GPS1, GPS2 and so on. Model Network Configuration main protection structure GAR1 (ordinary simple type) wire rope edge (or on the edge) anchor rope + + support rope stitch rope (DO / 08/300 steel anchor rope + + up and down up and down along the edge (or transverse ) support rope) envelope, limiting range of motion of falling rock, partially Yang system collapse occurred GAR2 (ordinary) steel wire rope system support rope wire rope anchor + + suture rope, opening the pit + tension [or edge (along ) anchor (anchor rope from 2-4 m 4.5m) + vertical and horizontal support rope (2-∮16) + wire rope (◇ 08/300/4 * 4 m) + suture rope (∮8)] slope reinforcement, Yang system collapse and weathering, the occurrence of partial or a small rockfall limit range of motion GPS1 (ordinary common type) + steel wire rope steel wire mesh grille with GAR1 + (GAR1 + SO / 2.2 / 50 wire grill) with GAR1 , when implementing small selection of GPS2 (ordinary common type) + steel wire rope steel wire mesh grille with GAR2 + [or edge (the edge) anchor (2-4 m away from the anchor rope 4.5m) + vertical and horizontal support rope (2-∮16) + wire rope (◇ 08/300/4 * 4 m) + suture rope (∮8) + SO / 2.2 / 50 wire grille + system anchor] with GAR2, there are small pieces of rock or soil risk When the slope selection GTC-65A wire mesh grille mm Length: 2m-3m diameter: Φ16mm envelope slope reinforcement effect, inhibiting collapse and weathering, slip collapse occurred, limiting the range of motion of falling rock or a small amount of local, there are small rockfall the selection or the slope. Up to 100 years to meet the requirements of corrosion life, but it reinforced the capacity of only about 70% -80%, suitable for volume greater than 1m3 of solitary dangerous rock chunks. GTC-65B 8mm steel wire mesh enclosure net effect limiting the range of motion of falling rock, partially inhibited the occurrence of collapse. Up to 100 years to meet the requirements of corrosion life, not suitable for volume greater than 1m3 of solitary dangerous rock chunks. Envelope effect limiting the range of motion of falling rock