Geocell, a polymer material with a three-dimensional honeycomb structure, has gradually been widely used in road construction due to its excellent reinforcement, reinforcement and protection effects.
Geocell forms a composite structure by filling materials, which can effectively improve the bearing capacity of the foundation, inhibit lateral displacement, disperse the load and improve drainage conditions, especially in the reinforcement of soft foundations, slope protection and roadbed stabilization.
Geocell Classification
HDPE geocell: strong flexibility, suitable for road base and slope reinforcement.
Reinforced geocell: such as glass fiber reinforced geocell, suitable for load-bearing structure.
Vegetation geocell: used for ecological slope, green slope protection, etc.
Main uses of geocells in road construction
Reinforcement of weak foundations; laying geocells on low-bearing foundations can greatly improve the overall stiffness and bearing capacity of the foundation and effectively control uneven settlement. It is often used in wetlands, roads in high water levels, rural roads, temporary construction roads and other projects.
Road base reinforcement; geocells are used as reinforcement materials for base or subbase, which can enhance the stability of fillers, improve fatigue resistance and crack resistance, and are suitable for heavy-loaded traffic roads and port terminal passages.
Slope stability and slope protection; in high slope and embankment slope protection projects, cells effectively prevent slope damage by enhancing surface stability, promoting plant root grip, and inhibiting erosion. They are widely used in highway slope and railway slope protection.
Embankment and bridgehead jump treatment; geocell reinforcement of bridgehead transition section can alleviate the "jumping" phenomenon caused by the transition between soft and hard soils, smooth the settlement gradient, and improve traffic comfort and structural safety.
Roads in high-altitude and frozen soil areas are stable; in frozen soil areas, the cell structure can reduce the damage to the roadbed caused by frost heave and thaw settlement effects, and improve the service life and stability of the road.
Geocell Mechanism and Engineering Principles
Load dispersion: The composite structure filled with geocells can disperse the vertical concentrated load into a wider range, effectively reduce the stress per unit area, and improve the bearing capacity of the foundation.
Suppress lateral flow: The cell structure provides physical constraints, limiting the lateral displacement of the filling material, especially maintaining structural stability under heavy loads and repeated loads.
Improve shear strength: The integrated constraints of the filling materials in the cell enhance the overall shear strength of the soil and reduce the risk of settlement and shear failure.
Anti-slip and anti-scouring: On slopes or high fill areas, geocells can effectively prevent water scouring, landslides and other damage, and have good vegetation attachment ability to achieve ecological slope protection.
