High tensile strength in one direction, excellent creep resistance, and stable chemical properties.
The coefficient of friction with sand and stone is high.
Construction Method:
When used for subgrade and pavement, the construction method is the same as that for two-way geogrid.
When used for reinforced soil retaining walls, the construction method is as follows:
Establish a foundation, construct according to the designed wall system. When using precast reinforced concrete panels, they are typically 12-15cm thick and supported on precast concrete foundations. The width should not exceed 30cm, the thickness should be no less than 20cm, and the burial depth should be no less than 60cm to prevent frost heave from affecting the foundation.
Level the foundation wall, excavate and level according to design requirements. Soft soil should be compacted or replaced, compacted to the required density, slightly exceeding the wall face.
Rebar laying: The main strength direction of the rebars should be perpendicular to the wall, secured with dowel pins.
Fill soil for walls, use mechanical backfilling, maintain a minimum distance of 15cm between the wheel and reinforcing materials. After compaction, the thickness of the soil layer should be approximately 20-15cm.
During wall construction, the wall area should be wrapped with geotextile to prevent soil loss.
Product Application
A unidirectional geogrid is a high-strength geosynthetic material. It is widely used in embankments, tunnels, docks, roads, railways, and construction fields.
Main applications include:
Enhanced subgrade, effectively distributes and diffuses loads, enhancing stability and bearing capacity, and extending service life.
Can withstand greater alternating loads.
Prevent roadbed material loss-induced deformation and cracking of the roadbed.
Improve the self-supporting ability of backfill behind retaining walls, reduce soil pressure on the retaining walls, save costs, extend service life, and lower maintenance expenses.
Integrating shotcrete construction methods for slope maintenance not only saves 30% to 50% of investment but also reduces the construction period by more than double.
Adding geogrids to the subgrade and surface of highways can reduce settlement, minimize rutting, delay the appearance of cracks by 3-9 times, and can reduce the thickness of the structural layer by up to 36%.
Suitable for various soils; no need to source materials from elsewhere, saving time and labor.
EASY AND QUICK INSTALLATION, SIGNIFICANTLY REDUCING CONSTRUCTION COSTS.
