HDPE geocell products are made of high strength HDPE or PP copolymer broadband, after strong welding or riveting and the formation of a network cell structure. HDPE Geocell is generally made by ultrasonic needle welding. Due to engineering needs, some in the diaphragm for drilling. The height of the strip is the height of the cell. When the cell is not expanded, the distance between two adjacent welds on the same side of the same sheet is the welding distance. The HDPE geocell is flexible which make it can be folded when transported. The HDPE geocell constitutes a strong lateral constraints and great stiffness of the structure when it is used open and filled with earth or concrete material. The HDPE geocell can be used as cushion to deal with soft foundation to increase the bearing capacity of the foundation, it can also be laid on the slope surface to form slope protection structure, but also can be used to build supporting structure.
1 What Are Geocell Products?
Geocell products are cellular confinement systems widely used in civil engineering and construction applications. These three-dimensional structures, typically made from high-density polyethylene (HDPE) or other materials, consist of interconnected cells that can be filled with soil, aggregate, or other infill materials to create a stable and reinforced structure.
The primary purpose of geocells is to provide erosion control, slope stabilization, and load support in various geotechnical projects. They find application in several key areas:
- Soil Stabilization: Geocells effectively stabilize soil on slopes, embankments, and erosion-prone areas, preventing soil erosion and promoting vegetation growth.
- Retaining Walls: Geocells can be used to construct retaining walls, providing structural support and stability to steep slopes. The cells are filled with suitable materials to enhance the wall’s strength.
- Road Construction: Geocells reinforce and stabilize the base layers of roads, evenly distributing loads and reducing the potential for road deformation.
- Channel Protection: Geocells protect riverbanks and channels by preventing soil erosion, creating a stable structure capable of withstanding water flow and maintaining the integrity of the surrounding environment.
- Load Support: Geocells offer support for heavy loads in applications such as parking lots and access roads. By distributing the load, they reduce pressure on the underlying soil.
- Green Roofs: Geocells can be incorporated into green roof systems, promoting vegetation growth while providing additional structural support.
The specific type of geocell product and its characteristics may vary depending on the manufacturer and project requirements. Nevertheless, geocell products offer a versatile and effective solution for addressing various geotechnical and environmental challenges in civil engineering and construction projects.
2 Case Study of HDPE Geocell Products for Highway Subgrade Project in Malaysia
- Location- Malaysia
- Product- HDPE Geoell Products
- Application- Highway Subgrade Project in Malaysia
The North-south highway in Malaysia runs cross the entire Malay Peninsula with complex geological conditions. If the foundation of soft soil section of expressway is not strengthened, subgrade instability and excessive subsidence or lateral displacement will often occur, and it will leading to the normal use of the highway, affecting the speed, comfort and safety of driving. Therefore, the government required the contracting company to provide safety materials to solve the load bearing and instability of the subgrade.