Abstract
This paper describes the theoretical framework for a novel waste-cover-waste three-layer landfill cover system without the use of geomembrane but vegetation. The research methodology adopted includes laboratory column tests quantifying the transpiration-induced suction in vegetated three-layer cover systems using construction waste without geomembrane but with different plant species, and full-scale monitoring of field performance of the novel three-layer landfill cover system using natural soils for 6 years, in the areas where the annual rainfall exceeded 2,000mm. Moreover, the research also includes the combined use of vegetation and biochar together with construction waste in another field trial of the novel three-layer landfill cover system without geomembraner for 16 months. The results of laboratory and field-monitored matric suction, volumetric water content and percolation will be reported and explained. Design recommendations will be given.
| Original language | English |
|---|---|
| Pages (from-to) | 11-23 |
| Number of pages | 13 |
| Journal | Proceedings of the International Congress on Environmental Geotechnics |
| DOIs | |
| State | Published - 2023 |
| Externally published | Yes |
| Event | 9th International Congress on Environmental Geotechnics, ICEG 2023 - Chania, Greece Duration: 25 Jun 2023 → 28 Jun 2023 |
Keywords
- biochar
- construction waste
- plant
- three-layer landfill cover
- water infiltration
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