Generally, the two primary types of geotextiles used are high-density polyethylene (HDPE) geotextiles and low-density polyethylene (LDPE) geotextiles.
High-density polyethylene geomembranes (HDPE) are manufactured from MDPE (medium-density polyethylene) or HDPE (high-density polyethylene) as raw materials through blow molding or casting processes.This geomembrane exhibits exceptional resistance to environmental stress cracking, with outstanding performance against low temperatures, aging, and corrosion. It operates within a wide temperature range, effectively functioning from subzero to ambient conditions.Its service life is exceptionally long, essentially representing a 'one-time solution for permanent use' option.
Low-density polyethylene geomembranes (LDPE) are manufactured from PE-LLD (linear low-density polyethylene) using either blow molding or casting processes.This geomembrane exhibits exceptional flexibility, strong puncture resistance, and high impact strength.It also exhibits excellent low-temperature resistance, particularly demonstrating outstanding performance in cold environments.Moreover, it demonstrates exceptional resistance to environmental stress cracking, making it suitable for various complex environments.
Which geomembrane should be selected?
When selecting geotextile membranes, the key consideration should be your specific requirements.If you require a geotextile membrane with excellent durability, heat resistance, and corrosion resistance, high-density polyethylene (HDPE) geotextile membranes are the superior choice.If you prioritize flexibility, puncture resistance, and low-temperature tolerance, low-density polyethylene geomembranes would be a more suitable choice for you.
Planting bags/grass bags should be used here
Planting bags (also known as ecological bags or vegetation bags) are geotechnical materials that integrate slope protection, soil stabilization, greening, and ecological restoration, and are widely applied in various engineering and environmental remediation scenarios.The following scenarios involve the use of grass bags:
I. Slope Protection for Transportation Infrastructure
Highway and railway slopes: Designed to prevent rainwater erosion, stabilize slopes, and facilitate greening.
Bridgeheads and culvert openings: Mitigate water flow impact and reduce soil erosion.
II. Water Resources and River Channel Management
Riverbanks, lakes, reservoirs, and artificial lake shores: Prevent shoreline erosion and establish ecological bank protection.
Dams and irrigation canal slopes: Enhance structural stability while balancing landscape and ecological functions.
III. Mine and Mountain Restoration
Open-pit mine restoration and barren mountain greening: Vegetation reconstruction on barren or rocky slopes.
Landslide control and steep slope stabilization: Reinforcing loose soil masses through root network systems.
IV. Urban Greening and Construction Engineering
Roof gardens and vertical greening: lightweight and permeable, ideal for building facade landscaping.
Urban parks and residential landscape projects: Designed for landscaping, soil stabilization, and increasing green coverage rates.
V. Special Environment Management
Desertification control/Sand prevention and mitigation: Can be used as sand barrier bags or sand fixation carriers, combined with vegetation restoration.
Landfill site closure and greening of construction waste disposal sites: to suppress dust emission and promote ecological restoration.
Wetland construction for sewage treatment plants: Enhancing vegetation coverage to improve purification capacity.
Selection Recommendations for Grass Paving Grates ( Grass Planting Grids)
Selection Recommendations for Grass Paving Grates ( Grass Planting Grids)
Grass pavers are eco-friendly paving materials that combine load-bearing capacity, landscaping, and drainage functions, suitable for various scenarios requiring both vehicular access (or pedestrian traffic) and green coverage.
Selection recommendations (by scenario)
●For residential parking spaces, 4cm-thick HDPE flat-top turf grids are recommended, with a load-bearing capacity of 50–80 tons per square meter and high perforation rate to facilitate grass growth.
●Fire truck lane: Recommended 7 cm thick reinforced grass pavers with a load-bearing capacity of ≥200 tons/m² and seamless joints to ensure safe passage for fire trucks.
●Municipal sidewalks/parks: Optional 4–5 cm thick flower-mouthed turf grates in customizable colors (e.g., green, gray) to enhance friction and slip resistance.
●Slope/ecological restoration: Use 4–5 cm thick ecological large-grid turf grids in combination with ecological bags to enhance soil stabilization effects.
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