Long-term field performance of non-vegetated and vegetated three-layer landfill cover systems using construction waste without geomembrane
文献类型：期刊论文
| 作者 | Ng, Charles Wang Wai3; Guo, Haowen3; Ni, Junjun3; Chen, Rui6; Xue, Qiang1 ; Zhang, Yanmin2; Feng, Yong2; Chen, Zhongkui4; Feng, Song5; Zhang, Qi3
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| 刊名 | GEOTECHNIQUE
 |
| 出版日期 | 2022-06-09 |
| 卷号 | -期号:-页码:- |
| ISSN号 | 0016-8505 |
| 关键词 | field monitoring landfills partial saturation recycled material vegetation |
| 英文摘要 | This paper compares the field performance of non-vegetated and vegetated three-layer landfill cover systems utilising construction waste but without geomembrane at the Shenzhen Xiaping landfill site in humid climates over a monitoring period of 54 months. The top layer of each cover system was constructed using coarse-grained completely decomposed granite (CDG). The middle and bottom layers were compacted with coarse recycled concrete (CRC) and fine-grained CDG, respectively. Numerical analyses were also carried out. During the 54-month monitoring period, the cumulative rainfall recorded was 9800 mm. Retained pore water pressure in the vegetated cover was close to that in the non-vegetated cover after the heaviest rainfall recorded in Shenzhen during the monitoring period. The pore water pressure retained in the vegetated cover can be higher than that in the non-vegetated cover due to the increased saturated water permeability (k(s)) induced by plant growth over 3 years. Surface runoff and water storage capacity in the vegetated cover were about five times and 9% higher than those in the non-vegetated cover, respectively. However, the long-term behaviour of the cover system in respect of these two aspects was influenced by the increase of k(s) due to the growth of grass roots. The middle CRC layer diverted infiltrated water by up to 51% of total rainfall. The measured average annual percolation of the non-vegetated and vegetated covers was about 23 mm and 21 mm, respectively. The measured data are supported by numerical analyses and they meet the US recommended criterion. |
| 学科主题 | Engineering |
| 语种 | 英语 |
| 出版者 | ICE PUBLISHING |
| WOS记录号 | WOS:000808537500001 |
| 源URL | [http://119.78.100.198/handle/2S6PX9GI/35478]  |
| 专题 | 中科院武汉岩土力学所 |
| 作者单位 | 1.State Key Laboratory of Geomechanics and Geotechnical Engineering, Institute of Rock and Soil Mechanics, Chinese Academy of Sciences, Wuhan, P. R. China 2.Xiaping Municipal Solid Waste Landfill, Shenzhen, P. R. China 3.Department of Civil and Environmental Engineering, The Hong Kong University of Science and Technology, Hong Kong SAR, P. R. China 4.Shenzhen Yanzhi Science and Technology Co. Ltd, Shenzhen, P. R. China 5.College of Civil Engineering, Fuzhou University, P. R. China 6.School of Civil and Environmental Engineering, Harbin Institute of Technology, Shenzhen, P. R. China |
| 推荐引用方式 GB/T 7714 | Ng, Charles Wang Wai,Guo, Haowen,Ni, Junjun,et al. Long-term field performance of non-vegetated and vegetated three-layer landfill cover systems using construction waste without geomembrane[J]. GEOTECHNIQUE,2022,-(-):-. |
| APA | Ng, Charles Wang Wai.,Guo, Haowen.,Ni, Junjun.,Chen, Rui.,Xue, Qiang.,...&Zhang, Qi.(2022).Long-term field performance of non-vegetated and vegetated three-layer landfill cover systems using construction waste without geomembrane.GEOTECHNIQUE,-(-),-. |
| MLA | Ng, Charles Wang Wai,et al."Long-term field performance of non-vegetated and vegetated three-layer landfill cover systems using construction waste without geomembrane".GEOTECHNIQUE -.-(2022):-. |
入库方式： OAI收割
来源：武汉岩土力学研究所
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