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4Selection items
6Steps
2FAQs
GBStandards cited
Summary: MSW landfill liners follow GB 16889-2024 and GB/T 50869-2013: a double liner of GCL + 1.5 mm double-textured HDPE geomembrane + filament geotextile protection. Membrane per GB/T 17643-2025, landfill grade per CJ/T 234-2006. We supply base, slope and anchor-trench zones with full weld testing support.
Selection Table
| Position / function | Recommended material | Standard |
|---|---|---|
| Base primary liner | 1.5 mm double-textured HDPE | GB/T 17643-2025 / CJ/T 234-2006 |
| Secondary self-healing layer | GCL 5000 g/m2 | JG/T 193-2006 |
| Membrane protection | 600 g/m2 filament geotextile | GB/T 17639-2023 |
| Leachate drainage | Composite drainage geonet | CJ/T 452-2014 |
Installation Steps
- Subgrade acceptance and anchor trench forming
- Lay GCL and protection layer, overlap >=250 mm with bentonite seal
- Unroll 1.5 mm double-textured membrane top-down on slopes
- Double-track hot wedge welding, overlap >=100 mm, 100% air pressure test
- Lay protection and drainage layers
- Hidden-work acceptance then backfill
