Geoweb Systems
1.Enhance the bearing capacity of the foundation：The three-dimensional grid constrains the soil, enhances the bearing capacity of the foundation, reduces settlement, and is suitable for soft foundation treatment.
2.Easy construction：Foldable transportation, quick on-site splicing and laying, saving labor and time, suitable for tight schedule projects.
3.Strong weather resistance：It is made of high-strength materials, resistant to aging and corrosion, and has a service life of decades in harsh environments.
4.Cost savings：Reduce the amount of earthwork and stone materials used, lower procurement and transportation costs, and lower maintenance investment in the later stage.
5.Widely used：Suitable for various engineering scenarios such as highways, railways, slopes, and rivers, with diverse functions.
Product Introduction
Basic Definition
Geoweb Systems is a new type of geosynthetic material developed in the late 20th century. Its core material is high-strength polyethylene (HDPE), and some special models may add reinforcing agents or UV resistant components. As an innovative reinforcement material in the field of geotechnical engineering, it achieves engineering goals such as foundation strengthening and slope stability by changing the mechanical properties of soil structure. Currently, it has become a commonly used material in transportation, water conservancy, municipal and other fields.
Structural characteristics
Under normal circumstances, it has a layered folding form, and the area of a single roll can be expanded dozens of times after unfolding, greatly saving transportation space and costs; The honeycomb shaped three-dimensional grid formed by unfolding and splicing is usually between 5-30 centimeters in height, and the cell size can be customized according to engineering requirements. This structure can "lock" dispersed soil, sand, gravel and other filling materials inside the compartment, and transform them into an overall load-bearing structure through constraint, significantly improving the material's shear strength and bearing capacity.
Core performance
After special processing, the raw materials have a temperature adaptability range of -40 ℃ to 60 ℃, and their anti UV aging performance can meet the outdoor usage needs for more than 50 years; Excellent chemical stability, able to withstand acid and alkali corrosion, microbial erosion, and industrial wastewater pollution in soil; The tensile strength can reach over 20MPa, and it is not easy to undergo plastic deformation under long-term load, ensuring the long-term stability of the engineering structure.
Construction advantages
On site construction does not require large machinery, only manual unfolding and splicing are needed, and a single group of workers can lay 1000-2000 square meters per day; The splicing method adopts snap fasteners or welding, with simple operation and firm connection, and the joint strength is not less than 80% of the base material; Compared with traditional sand and gravel cushion layers, it can reduce excavation and backfilling by 30% -50%. Combined with rapid solidification technology, it can shorten the foundation treatment period by more than 40%.
Product Parameters
order number | raw and processed material | |||||||
test item | unit | polytene | sulan | polyester | ||||
Extruded type | Stretch type | Extruded type | Stretch type | Extruded type | Stretch type | |||
1 | tensile strength | kN/m | ≥20 | ≥100 | ≥23 | ≥100 | ≥30 | ≥120 |
2 | Tensile yield strain | % | ≤15 | — | ≤15 | — | ≤15 | - |
3 | Tensile fracture strain | % | — | 8~ 20 | — | 6~ 15 | — | 8~ 20 |
4 | Carbon black content a | % | 2. 0~ 3. 0 | |||||
5 | Carbon black dispersion a | — | There should be no more than one level 3 data item in ten data items and no level 4 or 5 data items | |||||
6 | 200℃ oxidation induction time | min | ≥20 | ≥20 | — | |||
7 | Tensile load stress cracking | h | ≥300 | — | ||||
8 | B. Resistance to artificial climate aging retention rateb | % | ≥80 | |||||
9 | Chemical resistance performance retention rate c | % | — | ≥80 | ||||
Product Application
Highway engineering field
In highway construction, it is particularly suitable for roadbed reinforcement in soft foundation sections. When the highway is widened, it can effectively reduce the differential settlement between the old and new roadbeds, avoiding problems such as cracks and collapses on the road surface. For the grassroots treatment of low-grade highways, it can improve the pavement bearing capacity, extend the service life of the highway, and reduce the frequency of later maintenance.
Slope protection engineering
When used for slope protection, laying a geogrid on the surface of the slope and filling it with soil and rock can form a stable protective structure. Cooperating with vegetation planting to form an ecological grid can not only solidify soil and prevent erosion, resist the erosion of slopes by rainwater and wind, but also restore the green environment of slopes, achieving a dual effect of engineering protection and ecological restoration.
In terms of water conservancy engineering
In the protection of river embankments, geogrids can resist long-term erosion of water flow, protect the stability of embankment structures, and reduce soil erosion. In reservoir dredging projects, it can serve as a temporary retaining structure to facilitate dredging operations and prevent the spread of silt from polluting surrounding waters.
Construction of transportation hubs
In the reinforcement of airport runway base, geogrids can enhance the overall integrity and bearing capacity of the runway base, ensuring the safety and stability of aircraft takeoff and landing. In the leveling and foundation treatment of transportation hubs such as stations and ports, it can also play a good reinforcement role to ensure the normal operation of the hub.
Other engineering scenarios
In mining reclamation projects, the use of geogrids can stabilize the soil of abandoned mining land, create favorable conditions for vegetation restoration, and help improve the ecological environment. In the foundation treatment of large-scale material storage yards, it can improve the bearing strength of the foundation, avoid foundation settlement and deformation caused by excessive material stacking, and ensure the safe use of the material storage yard.
In summary, geogrids play an important role in many engineering scenarios such as highways, slopes, water conservancy, transportation hubs, and mine reclamation due to their unique structure and excellent performance. It can not only improve the stability and safety of engineering structures, but also assist in ecological restoration. At the same time, it has outstanding performance in improving construction efficiency and reducing engineering costs. It is a widely used and highly valuable geosynthetic material.
