◆ Biaxial Geogrid
Produced via polymer extrusion, sheeting, perforation, and bidirectional stretching, forming a high-tensile network in longitudinal/transverse directions15.
◆ Triaxial Geogrid
Manufactured with additional Z-axis stretching after biaxial processing, achieving three-dimensional reinforcement capabilities2.
Mechanical Properties Comparison
| Parameter | Biaxial Geogrid | Triaxial Geogrid |
|---|---|---|
| Tensile Strength | 80-120 kN/m (XY-axis only)1 | Balanced strength in all axes2 |
| Stiffness | 40% stiffness increase in base1 | Superior multidirectional rigidity2 |
| Elongation | ≤10%1 | Enhanced deformation control2 |
Road Engineering Applications
● Biaxial Advantages
- Load Distribution: Reduces stress concentration via XY-axis load transfer14
- Settlement Control: Cuts uneven settlement by 2/3 in soft soil13
- Cost Efficiency: Ideal for rapid deployment in embankments/slopes56
● Triaxial Advantages
- 3D Reinforcement: Maintains integrity under complex geological stresses27
- Adaptive Performance: Excels in high-fill areas & existing road upgrades24
- Longevity: Extends pavement life through elastic deformation management2
Construction Requirements
| Factor | Biaxial | Triaxial |
|---|---|---|
| Precision | Standard overlap control6 | Strict 3D alignment needed2 |
| Flexibility | Simple installation5 | Adapts to variable loads2 |
| Site Conditions | Stable terrain3 | Complex geology compatible7 |
Selection Guidelines
┌───────────────────┬───────────────────────────────┐
│ Engineering Needs │ Recommended Geogrid Type │
├───────────────────┼───────────────────────────────┤
│ Time-sensitive │ Biaxial (rapid deployment) │
│ High-fill sections│ Triaxial (3D stabilization) │
│ Soft soil bases │ Triaxial (settlement control) │
│ Budget constraints│ Biaxial (cost efficiency) │
└───────────────────┴───────────────────────────────┘
│ Engineering Needs │ Recommended Geogrid Type │
├───────────────────┼───────────────────────────────┤
│ Time-sensitive │ Biaxial (rapid deployment) │
│ High-fill sections│ Triaxial (3D stabilization) │
│ Soft soil bases │ Triaxial (settlement control) │
│ Budget constraints│ Biaxial (cost efficiency) │
└───────────────────┴───────────────────────────────┘
Decision matrix based on technical specifications and cost-benefit analysis
