Geotubes for Erosion Control
1. Soil consolidation and anti erosion: Quickly form a protective body to resist erosion;
2. Environmental Protection: Environmentally friendly materials, nearby filling materials, and ecological integration;
3. Easy to construct: Lightweight and foldable, no need for large equipment, suitable for complex terrains;
4. Durable and economical: Anti-aging corrosion, long service life, low maintenance cost.
Product Introduction
1、 Basic attributes
Material attribute：Geotubes for Erosion Control are made of high-strength, anti-aging geotextile (such as polypropylene, polyester fiber) woven or sewn into tubular/bag structure, which has acid and alkali resistance and ultraviolet resistance, and can adapt to outdoor complex environment.
Shape attribute: Foldable, lightweight, unfolded into a long tube or bag shape, flexible specifications (diameter/length can be customized), compatible with various filling materials such as soil and sand.
2、 Core functions
Soil fixation and erosion resistance: dense structure is formed after filling, which can directly block water scouring and wind erosion, and stabilize the soil in slope, river bank, mudflat and other areas prone to erosion;
Ecological protection: allows water and air infiltration, does not block soil microbial activity, and can integrate with surrounding vegetation and soil over time to assist in restoring the ecological environment;
Emergency protection: construction is fast, and temporary protective layer can be built quickly after rainstorm, flood and other disasters to reduce further soil loss.
3、 Main features
Convenience: Lightweight, easy to transport and store, no need for large equipment on site, simple splicing, filling, and fixing processes, suitable for narrow or complex terrains;
Economy: The filling material can be obtained nearby (such as local sediment and gravel), reducing material transportation costs, and has a long service life (5-10 years or more), with low maintenance costs in the later stage;
Flexibility: The specifications can be customized according to needs, which can be used for both small-scale ditch protection and large-scale riverbank and roadbed reinforcement, with a wide range of applicable scenarios.
Product Parameters
project | unit | CWGD50S | CWGD90/120 | CWGD90S | CWGD100S | CWGD120S-B | CWGD120S-C | CWGD130S | CWGD200S-C | |
Tensile strength-radial | kN/m | 55 | 90 | 90 | 100 | 130 | 130 | 130 | 220 | |
Tensile strength-Weft | 50 | 120 | 90 | 100 | 120 | 120 | 130 | 210 | ||
Strain elongation-radial | % | 16±1 | 12±1 | 9±1 | 10±1 | 10±1 | 10±1 | 10±1 | 12±1 | |
Extensional elongation-Weft | 10±1 | 8±1 | 8±1 | 8±1 | 8±1 | 8±1 | 8±1 | 8±1 | ||
Breakage strength at 2% elongation | warp direction | kN/m | 5/15 | 14/40 | 30/30 | 30/30 | 20/40 | 22/40 | 20/45 | 15 |
Breakage strength at 5% elongation | warp direction | kN/m | 14/33 | 38/90 | 75/75 | 75/75 | 80/100 | 84/40 | 80/110 | 90 |
mass area ratio | g/m² | 285 | 440 | 390 | 430 | 540 | 540 | 560 | 850 | |
Joint tensile strength | kN/m | 35 | 90 | 60 | 70 | 100 | 100 | 110 | 170 | |
Static Burst Strength (CBR) | KN | 5 | 10 | 10 | 13 | 15 | 15 | 16 | 22 | |
Dynamic perforation | mm | 10 | 8 | 12 | 12 | 10 | 10 | 11 | 8 | |
Equivalent aperture (0g0) | mm | 0.9 | 0.48 | 0.52 | 0.45 | 0.4 | 0.3 | 0.43 | 0.4 | |
Permeability (Q50) | L/m²/s | 200 | 40 | 20 | 15 | 12 | 6.5 | 15 | 15 | |
Ultraviolet resistance (500h strong storage rate ） | % | 90 | 90 | 85 | 85 | 85 | 85 | 85 | 85 | |
Product Application
1.Riverbank and River Channel Protection: In the bank slopes and embankment areas of small and medium-sized rivers and streams, local sediment and gravel are filled to form a stable protective body, which can resist the perennial erosion of river water and seasonal flood impact, prevent bank slope collapse and river channel siltation, while also considering ecology, not blocking the material exchange between water and soil, and adapting to the needs of ecological river channel management.
2.Slope and roadbed protection: Suitable for slopes along highways and railways, municipal road slopes, and mine reclamation slopes. By fixing loose soil, the problems of landslides and collapses caused by rainwater erosion can be reduced. Grass seeds can also be sown on the surface or around the pipe bag to assist in slope vegetation restoration, achieving a dual effect of "protection+ecological restoration".
3.Mudflat and coastal protection: In coastal mudflat, intertidal zone and coastal wetland areas, the characteristics of anti wave and anti tide erosion can be used to protect coastal ecosystems such as mudflat landform and mangroves, and can also be used as an auxiliary protective structure of coastal breakwaters to reduce the impact of waves on the dike body.
4.Ditch and reservoir protection: Used for protecting the side walls of irrigation ditches and drainage ditches in farmland to prevent water flow from widening and silting the ditches; Using it in the dissipation pool of the reservoir and along the shoreline around the reservoir area can reduce the erosion of the bank slope by water bodies and reduce the problem of capacity reduction caused by sediment entering the reservoir.
5.Emergency erosion control: After rainstorm, flood, debris flow and other disasters, geotechnical pipes (geotextile bags) can be quickly deployed to fill the nearby earth rock and sand to build a temporary protective layer, quickly stop further soil loss, buy time for subsequent ecological restoration and engineering reinforcement, and adapt to disaster emergency rescue scenarios.
The application scenarios of geotextiles (geotextile bags) revolve around the core of "erosion prone area protection". They not only cover the long-term protection needs of water bodies such as rivers and coasts, but also adapt to the stable reinforcement of land scenes such as slopes and ditches. They can also cope with emergency management after disasters. Their flexibility, adaptability, and ecological compatibility make them an important technical means in the fields of soil and water conservation and ecological protection. Especially in projects that balance protection effectiveness and ecological sustainability, their application value is more prominent.
