Experimental study on the microstructure and mechanical behaviors of leachate-polluted compacted clay
文献类型：期刊论文
| 作者 | Zhao, Ying; Xue, Qiang ; Huang, Fa-xing; Hu, Xue-tao; Li, Jiang-shan
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| 刊名 | ENVIRONMENTAL EARTH SCIENCES
 |
| 出版日期 | 2016 |
| 卷号 | 75期号:12页码:- |
| 关键词 | Compacted clay Landfill leachate Mechanical behaviors Microstructure Soil aggregate Microscopic mechanism |
| ISSN号 | 1866-6280 |
| DOI | 10.1007/s12665-016-5816-x |
| 英文摘要 | The intent of this article is to investigate the microstructure characteristics and macroscopic mechanical behaviors of leachate-polluted compacted clays. X-ray diffraction, scanning electron microscope, and mercury intrusion porosimetry were used to observe the mineral component, microstructure of the compacted clays polluted by different concentrations of landfill leachate. One-dimensional swelling test, direct shear test, and permeability test were conducted to measure and analyze the swelling properties, shear strength, and permeability of leachate-polluted compacted clays. Results indicated that the leachate pollution caused a decrease in smectite content of compacted clays. Aggregate structure was destroyed by leachate pollution, causing an increase in the relative porosity of the smaller pores and a decrease in that of the larger pores. However, the total porosity increased with the leachate concentration because of the decrease in swelling deformation of compacted clay. Leachate pollution caused a significant increase in cohesion and a slight increase in internal friction angle of the compacted clays. Moreover, the permeability of the leachate-polluted compacted clays decreased with the increase in time and leachate concentration. |
| WOS研究方向 | Environmental Sciences & Ecology ; Geology ; Water Resources |
| 语种 | 英语 |
| WOS记录号 | WOS:000378865400014 |
| 出版者 | SPRINGER |
| 源URL | [http://119.78.100.198/handle/2S6PX9GI/3880]  |
| 专题 | 岩土力学所知识全产出_期刊论文 国家重点实验室知识产出_期刊论文 |
| 作者单位 | Chinese Acad Sci, Inst Rock & Soil Mech, State Key Lab Geomech & Geotech Engn |
| 推荐引用方式 GB/T 7714 | Zhao, Ying,Xue, Qiang,Huang, Fa-xing,et al. Experimental study on the microstructure and mechanical behaviors of leachate-polluted compacted clay[J]. ENVIRONMENTAL EARTH SCIENCES,2016,75(12):-. |
| APA | Zhao, Ying,Xue, Qiang,Huang, Fa-xing,Hu, Xue-tao,&Li, Jiang-shan.(2016).Experimental study on the microstructure and mechanical behaviors of leachate-polluted compacted clay.ENVIRONMENTAL EARTH SCIENCES,75(12),-. |
| MLA | Zhao, Ying,et al."Experimental study on the microstructure and mechanical behaviors of leachate-polluted compacted clay".ENVIRONMENTAL EARTH SCIENCES 75.12(2016):-. |
入库方式： OAI收割
来源：武汉岩土力学研究所
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