What Is Three-dimensional Vegetation Geomat
Three-dimensional vegetation net , also known as three-dimensional geomat, is a new type of civil engineering material, mainly used for planting grass and retaining soil and slope protection. It is a three-dimensional structure of the loofah-like net pad used for planting grass and fixing soil. Its texture is loose and flexible, leaving 90% of the space to fill with soil, gravel and fine stone. Plant roots can pass through it and grow comfortably, neatly and evenly. The resulting turf makes the mat, turf, and earth surface firmly bonded together . Because plant roots can penetrate 30-40cm below the surface, a solid green composite protective layer is formed.
The application example shows that the slope protection of three-dimensional vegetation net is very beneficial to the stability of slope, and the protection effect is very good. In recent years, the three-dimensional vegetation network slope protection technology not only significantly improves the overall and local stability of slope, but also facilitates the growth of slope vegetation. At the same time, the project cost is also low, which is in line with the development direction of slope engineering, and has great application value in soil and water conservation.
Before the sod has grown, the three-dimensional vegetation network can protect the surface of the land from the wind and rain. It can also firmly keep grass seeds evenly distributed on the slope, free from wind and rain. If you choose to use black mesh pad can absorb a lot of heat energy, increase moisture, promote seed germination, and extend the growth period of plants. Because the surface of the mat is rough, the wind and water flow produce numerous eddy currents on the surface of the mat, which produces the energy dissipation effect, and promotes the deposition of its cargoes in the mat. The composite protective layer formed after the plant grows up can withstand the erosion of high water level and high velocity (3 -- 4m/s within two days, 5 -- 6m/s within 4 -- 5 hours).
Three-dimensional vegetation network can replace permanent slope protection materials such as concrete, asphalt, block stone and so on, and is used for slope protection of roads, railways, rivers, DAMS, hillsides and so on. The use of three-dimensional vegetation net can greatly reduce the project cost, which is 1/7 of the cost of C15 concrete and dry block stone slope protection, and 1/8 of the cost of slurry block stone. After laying three-dimensional vegetation network on the surface of sandy land, it can prevent the movement of sand dunes, greatly improve the surface roughness, increase the surface sediment, change the physical and chemical properties of the surface, and improve the local ecological environment. Three-dimensional geomat is a new geosynthetic material with three-dimensional structure suitable for soil and water conservation, which can effectively prevent soil erosion, increase green area and improve ecological environment.
