Gabion Net – Slope Protection and Erosion Control
Gabion net is a rhomboid opening steel wire netting that is heavily zinc or PVC + galvanized coated. It is used as a slope protection to prevent landslides and erosion control.
Verify that contractor performs quality control on placement of rock-filled gabions. Review tonnage reporting and weighing equipment, and confirm that the contractor follows the frequency of inspection for concrete and shotcrete as described in Section 3-902E, “Monitoring and Testing,” of this manual.
Landslide Protection
Gabions can be used for slope protection, erosion control and to prevent landslides. They are effective for preventing soil from moving up and down a slope and can be constructed using Polypropylene bidirectional geogrid a variety of fill materials including rock, sand and concrete. Gabions can also be planted with vegetation to help stabilize a slope and protect the local ecological balance.
Gabion nets are mechanically woven from low-carbon steel wire with good ductility and strength. They are generally galvanized and have good corrosion resistance. They can withstand strong pressure and are able to resist natural damage as well as adverse weather effects. They are also suitable for river ecological slope protection engineering and are easy to install.
In addition to their excellent protective capabilities, gabions are environmentally friendly and have an excellent life cycle. They can be used in a wide range of projects from road construction to military applications and landscaping. They are also effective for erosion control and are a cost-effective alternative to concrete structures.
Ocean Geosynthetics manufactures double-twisted hexagonal gabion mesh that is ideal for slope protection and can be used to build gabion baskets, mattresses and decorative gabions. These gabions have higher impact resistance than single-twisted Rockcn mesh and are available in different sizes. They are usually delivered flat packed on a pallet and constructed into their final shape on site when they are ready to be filled with rock.
Slope Stabilization
Welded gabion nets can serve as slope stabilizers and erosion control measures when they are incorporated into the construction of a new surface or used to protect an existing one. They function as a barrier and limit the movement of soil from upper to lower slopes, helping to prevent erosion and slope collapse caused by heavy rains or man-made conditions.
Different slope environments require different stabilization methods. For example, in areas where soils are often wet and have a high water content, a welded mesh gabion basket with a large void space can help to increase the shear strength of the soil, increasing its stability. In such cases, the welded gabion baskets should be filled with materials with good water and air permeability to avoid a buildup of pressure in fissures and cracks, which can cause slope failure.
For slopes with high landslide risks, engineering techniques may be employed to reinforce and stabilize the structure, including soil nailing (steel bars “nails” are inserted into a soil or rock slope and grouted into place), rock bolting (similar to soil nailing but for rock slopes), and retaining walls. In addition, a range of surface protection measures can also be taken to reduce the likelihood of slope failures, such as grading the slope to decrease its steepness and/or placing protective barriers.
Velocity Dissipation
Gabions function as velocity dissipaters to limit soil movement and prevent landslides. They are also ideal for slope stabilization. Gabion cages are filled with stones and sealed, enabling them to be constructed at a lower cost than other slope protection methods. This is because they do not require heavy machinery, such as excavators, forklifts and road rollers, to build.
Gabion net products are easy to transport and assemble, with the assembly time taking only 5 – 7 minutes per basket. This makes them suitable for construction in remote areas with limited access and is the reason why they are increasingly popular for constructing roads and railways, and for river bank protection.
When used in rivers, gabion stone walls help protect embankments from erosion, allowing natural water Slope Protection Geocell Used flows to reach their destination with no damage to the environment. They are also effective in guiding the flow of floodwater, preventing mudslides and other disasters caused by rapid river water flows.
They also serve as soil stabilizers for bridge pier and abutment slopes, ensuring that the soil conditions are stable. The degree of the slope will determine what type of gabion structure is best suited to the application. For steeper slopes, standard gabion retaining wall protection is required, while for more gentle slopes, either gabion baskets or reno mattresses may be used.
Environmental Protection
Generally used in flood control, river bank protection and slope stabilization, Gabion mattresses (or Reno Mattresses) are porous, flexible structures that can deal with erosion by reducing water velocity. They also function as effective wave barriers and have good earthquake resistance. They are also very useful in the construction of railway and highway surfaces adjacent to rivers because they help maintain their stability.
The structure’s high porosity and permeability allow for the passage of water, soil, and biological organisms. This means that it will not damage the ecological environment surrounding the site and can be accepted by local organisms. This is a very important aspect of the environmental protection with a gabion net and it sets them apart from other retaining walls and protective structures.
Gabions are made from a wire mesh that is filled with rock and then covered with a layer of soil. They can be used to protect a slope from landslides or as an erosion control method when constructing an afresh slope. They can also be employed to conserve surface soil on a slope that already has vegetation by acting as velocity dissipators.
When making a gabion, the raw materials are first chosen and then mechanically twisted and weaved into a mesh. They are then welded together at designated points. Finally, the welded mesh is shaped into rectangular or custom-made boxes based on project specifications and thoroughly inspected before shipment.