Specifications

Basic dimension parameters
‌Height Range‌
Conventional height: 50-200mm, common specifications include 75mm, 100mm, 150mm, etc.
Special customization: Some projects can customize higher or lower specifications (such as 10cm, 15cm, 20cm, etc.).
‌Cell plane size‌
Side length (or diameter) range: 200-500mm, typical application specifications are 300-500mm.
Some customized models can reach several meters of side length (suitable for large-scale foundation projects).

Mechanical performance parameters
tensile strength
‌Tension strength of sheet:
Non-standard products ≥18MPa, national standard products ≥25MPa (polyethylene material).
‌ Tensile Strength of Welding Site‌:
Non-standard ≥100N/cm, national standard ≥160N/cm.
‌Material Characteristics‌
Conventional polyethylene material: strong corrosion resistance and suitable for humid environments.
High-strength composite materials: excellent anti-aging performance and adapt to complex climatic conditions.

Application areas

Transportation infrastructure field
Roadbed reinforcement
It is used for road and railway subgrade reinforcement. Its three-dimensional network structure can disperse loads, significantly improve the roadbed load bearing capacity and reduce settlement risks.
Case analysis shows that the probability of settlement after use in soft soil foundations is reduced by more than 70%, and the road service life is extended.
‌Slope Protection‌
Protect the slopes of roads and railways, and adapt to complex terrain through modular laying (such as 50-200mm unit size), reducing the slope displacement by 67%.
Combined with vegetation restoration, we will achieve the dual goals of ecological and engineering safety.
‌Soft Soil Foundation Treatment‌
Accelerate drainage and consolidation, improve foundation bearing capacity, and is especially suitable for roadbed optimization in newly built roads or wet and soft areas.
Water Conservancy Engineering Field
‌River protection and riverbed stability
The cutting water flow speed weakens the erosion force by 45%, and then forms an impact protection structure after filling the stone.
Used for shallow water river management, repairing natural river forms and improving water quality.
‌Watchproof and drainage system‌
In water conservancy projects, as a reinforcement material, a composite anti-seepage system is constructed in conjunction with geomembrane to reduce water resource leakage.
Field of ecological restoration
‌Mine reclamation and desertification control‌
The cavity structure stores nutrients in water and soil, promotes rapid growth of plants, and accelerates ecological restoration in damaged areas.
Fix sand dunes in desertification prevention and control, reduce wind erosion and rebuild vegetation layers.
‌Slope Greening
After laying, fill the planting soil and sow seeds to form a sustainable ecological protective layer to reduce soil erosion.
Urban construction field
‌Urban green space and water body management‌
Used for parks, green belts and water edges, prevent soil erosion and enhance water permeability, and reduce the risk of waterlogging.
‌Soft Soil Foundation Treatment‌
Simplify the construction process in municipal projects and reduce the thickness of the roadbed and project cost.
Environmental governance field
‌Soil and water conservation and pollution isolation‌
Intercepting silt and sand while allowing water flow to pass, reducing water pollution; covering contaminated soil to isolate harmful substances.

Construction process

Preparation before construction
‌Site Exploration and Cleaning‌
Remove debris (roots, gravel, etc.) in the construction area to ensure that the base is flat and dense, and the width and flatness of the filling and excavation bonding surface must meet the design requirements.
Level the slope and remove pumice and dangerous stones to avoid stress concentration and cracking of the weld joints in the grid.
Materials and equipment preparation
Prepare a geocouple (including anchors, connectors) according to the design requirements and verify the material certificate and mechanical properties.
Configure galvanized U-shaped nails, anchor rods (length ≥ 2 times the height of the grid chamber + 30cm) and compacting machinery.

Basic processing and positioning
Step excavation and foundation treatment
The steps are excavated at the filling and excavation junction according to the slope requirements (4% inclination of the horizontal slope and 15% inclination of the vertical direction), and the width of the first step at the slope foot is ≥175cm.
The bearing layer is rolled until the compactness meets the standards, check the surface flatness and roadbed width and report to the inspection.
‌Measurement and Positioning‌
Load the layout according to the design drawings, determine the laying range and anchor point, lay the horizontal filling and excavation junction, and extend the longitudinal laying to the excavation roadbed ≤5m.

Geo-room laying and fixing
‌Expand and Tension
The grid chamber is unfolded along the main force direction (slope surface from top to bottom), keeping the grid chamber sheet perpendicular to the roadbed, and horizontal laying is strictly prohibited.
Tensing the geogrid chamber to the regular diamond grid state ensures no slack phenomenon. Laying during high temperatures (such as noon) can reduce shrinkage and deformation.
‌Anchor and Connection
The starting end is anchored with galvanized U-shaped nails or hook-shaped rivet piles (anchoring spacing is 1.0m), and the anchoring depth is ≥60cm.
The adjacent lattice chamber is fixed by connecting parts, with a overlap length of ≥20cm, and overall stability is ensured using binding wires or welding.

Filler construction and compaction
‌Filling Requirements
Fill sand, gravel, planting soil or gravel in layers according to the design requirements, and the filling order is from top to bottom and the pat is compact.
The filler must not be unloaded directly above the grid chamber and must be placed on the paved soil surface, with the discharge height of ≤1m.
‌Compression Process‌
The thickness of the initial filling and loose laying is ≤30cm, and the light bulldozer is used to level it in a rough manner and then level it manually.
The rolling sequence is static pressure twice (speed ≤15km/h) → vibration compaction (speed 2-2.5km/h), and the horizontal staggered wheel is 0.4-0.5m to ensure that the compaction degree meets the standard.

Quality acceptance and protection
‌Detection and Repair‌
Check the tensioning status, anchoring strength and overlapping quality of the grid chamber, and the damaged areas need to be repaired or replaced.
Test the packing density (≥ design requirements) and slope flatness (Error ≤15mm).
‌Drainage and Ecological Protection‌
The main drainage ditches are set up on the slope (4m spacing) and are connected to the shoulder drainage system to prevent the slope protection.
Fill the planting soil and sow grass seeds, cover the non-woven fabric to prevent erosion, and remove it after the vegetation is alive.

Things to note
Avoid rainy days construction, the ultraviolet exposure time is ≤48 hours, and the covering layer is laid within 14 days after the construction is completed.
The top and foot of the slope need to be strengthened, and high-strength lattice chambers and anchor rods are preferred to fix them by steep slopes (slope > 60°).
Through the above processes, the stability and durability of geotextile construction can be ensured, and it can be adapted to engineering needs such as roadbed reinforcement and slope protection.