Ground / Slope Stabilization

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Ground / Slope Stabilization

Bulky, 3D woven textiles used for erosion control, slope stabilization, and leachate prevention.

Greencomb
Greencomb is a geocell in a honeycomb structure formed by
ultrasonically welding intersecting reinforcing strips, and is
widely applied for ground reinforcement, slope stabilization,
erosion control, and eco-friendly riverbank restoration.

Greencomb enhances the traditional geocell load-transfer mechanisms
such as soil/geocell friction, passive resistance of adjacent cells,
and circumferential stress of cells while providing root anchorage performance and additional friction with the subgrade, resulting in a new-concept civil engineering reinforcement fiber capable of withstanding variable loads.

3D Bearing Improvement

When the infill material is confined within the cells, the cell walls act
as surrounding walls encasing the soil mass, and the adjacent cells
provide horizontal stress support, keeping the cell walls in a neutral
position and maintaining their self-supporting property.

Filled Greencomb behaves like a slab, distributing loads and
restraining vertical displacement, thereby enhancing ground bearing capacity
.

Excellent Horizontal Permeability

Using porous lattice strips,
water can flow freely between cell walls, making it easy to apply
as a drainage layer with infill materials such as aggregates
.

Facilitates Root Anchorage

When applied as a vegetative base layer, roots penetrate the perforations
of the porous strips, anchoring the plants and integrating them
with the structure, which increases the overall system stability
.

High Friction Characteristics

The lattice cell wall structure provides friction with the infill material
that is superior to conventional smooth-sheet geocells,
enhancing the confinement effect of the soil particles.

Greencomb Application Methods

Slope Erosion Prevention

Provides stable slope reinforcement by ensuring
excellent friction with soil. Constrains soil
particles to resist erosion caused by heavy
rainfall effectively.

Landfill Slope Protection & Drainage Reinforcement

Provides excellent drainage and protective
capabilities, replacing conventional petaire
drainage/reinforcement layers.
Forms a relatively thin drainage layer,
maximizing landfill space utilization.

Eco-Friendly Waterway & Bank Protection

Forms eco-friendly vegetative waterways with
excellent permeability, providing stable
performance under various hydraulic conditions.

Reinforced Earth Retaining Wall

Minimizes deformation by constraining soil
particles, forming a stable earth mass
suitable for reinforced or gravity
retaining walls.

Road Base Reinforcement

Strengthens the sub-base to prevent differential
settlement and improve support using
the Greencomb method.

Eco-Friendly Vegetative Slope

Encourages vegetation on the Greencomb
surface to form an eco-friendly soil structure.

Landfill Final Cover Differential Settlement Prevention

An efficient method to prevent erosion and
differential settlement of the vegetative
base layer on the final landfill cover.

Emergency Riverbank Repair

Allows manual construction during emergencies.
Simple and quick installation makes it ideal
for urgent riverbank restoration works.

Ground Reinforcement
Greencomb method strengthens the sub-base to prevent differential settlement and improve support To reinforce the base and sub-base of
paved or unpaved roads, Greencomb is installed on weak or low-bearing-capacity soils.

By restraining soil displacement, it forms a reinforced layer that provides effective support. Compared to conventional aggregate replacement or
sheet-based reinforcements, it offers superior load-bearing improvement,
ease of installation, and durability.

Reinforcement Mechanism

Without reinforcement, when load is applied in Zone 1 as shown,
soil wedge 1 pushes soil wedge 2, causing failure.
Reinforcing with Greencomb restrains the displacement of soil in Zone 2,
preventing failure and increasing the load-bearing capacity.

Typical Cross-Section

Typical Section 1
Typical Section 2

Application Areas

Reinforcement of base and sub-base for paved and unpaved roads,
temporary roads on weak ground, yard and parking lot sub-bases, and railway subgrade reinforcement.

Application Area 1
Application Area 2
Application Area 3
Application Area 4
Application Area 5
Slope Erosion Prevention
Excellent soil interlocking ensures a more stable slope reinforcement,
forming a secure slope. Particularly effective in resisting erosion caused by heavy rainfall by restraining soil particles.


To prevent erosion on embankment and cut slopes, greening vegetation is applied. Greencomb is installed first, followed by planting so that plant roots interlock with the cell mesh, stabilizing and protecting the slope. For heavy rainfall events, vegetation mats can be combined to further enhance protection.

Concept

01
Stabilization Mechanism of Greencomb

Greencomb restrains displacement of infill material, ensuring structural stability
and serving as a reinforcement layer for riverbanks and bed protection structures.

02
Hydraulic and Erosion Reduction Effects

The Greencomb reinforcement layer reduces hydraulic forces and, through contact pressure
with the soil, prevents piping and erosion, contributing to stable river structure maintenance.

03
Vegetated Slope Protection

When used with vegetation mats, it forms a green slope protection layer
that enhances resistance against erosion caused by water flow.

04
Steep Slope Adaptation and Flexible Reinforcement

Applicable to steep slopes with concrete or aggregate covering, Greencomb acts as formwork and
expansion joint, providing a flexible reinforcement layer that accommodates ground movement and controls cracking.

Protection Mechanism

01
Stability via Plant Root Interlocking

When plants grow within Greencomb infill, roots interlock
with the porous structure, creating an integrated, stable protective layer for the slope.

02
Prevention of Soil Loss in Flowing Water

Applied in rivers or channels, Greencomb restrains infill displacement,
minimizing soil loss due to water flow and forming more natural banks when combined with plant roots.

03
Erosion Prevention with Vegetation Mats

Using vegetation mats alongside Greencomb reduces sediment loss
from heavy rain, forming an erosion-preventing layer and enhancing overall slope stability.

Typical Cross-Section

Application Areas

Vegetated embankment slope protection, levee greening
slope protection, riverbank protection, agricultural and irrigation channel slope protection

Water Supply (Freshwater) Facilities
By repeatedly stacking Greencomb layers, a stable reinforced soil structure is formed, creating gravity retaining walls, mechanically stabilized earth (MSE) walls, and slopes. High friction between layers and inherent flexibility allow the structure to behave stably under deformation, ensuring structural stability.

Compared to conventional rigid-faced MSE walls, Greencomb can accommodate differential settlement of the front wall, forming a stable reinforced soil mass. Additionally, vegetation can be applied on the front face, creating environmentally friendly soil structures.

Mechanism

01
Greencomb Layered Reinforcement Method

Greencomb forms a reinforcement layer through infill and compaction,
and by stacking these layers repeatedly, the desired height of the soil structure is achieved.

02
Stability through Interlayer Friction

High friction between Greencomb layers enhances the stability of the overall structure.

03
Horizontal Stress Resistance

Horizontal stress generated in the backfill soil is accommodated
by the Greencomb reinforcement layers, forming a solid reinforced soil structure.

Typical Cross-Section

Application Areas

Vegetated MSE walls, vegetated reinforced slopes,
reinforced embankments, landslide slope restoration, collapsed levee restoration

Application 1
Application 2
Application 3
Application 4
Application 5