Application of MICP in Water Stability and Hydraulic Erosion Control of Phosphogypsum Material in Slope
文献类型：期刊论文
| 作者 | Tian, Yifan1,2,3; Li, Zhiqing1,2,3; Wang, Shuangjiao1,2,3; Zhou, Yingxin4; Li, Dandan5; Fu, Le6,7 |
| 刊名 | APPLIED SCIENCES-BASEL
 |
| 出版日期 | 2022-02-01 |
| 卷号 | 12期号:4页码:18 |
| 关键词 | phosphogypsum microbial-induced carbonate precipitation (MICP) water stability hydraulic erosion resistance rainfall scouring test |
| DOI | 10.3390/app12041783 |
| 英文摘要 | Phosphogypsum is a kind of solid waste that occupies land resources and harms the environment. It can be used as a solidified material, but the utilization of phosphogypsum is limited by its impurities and weak strength performance. This study aimed to use microbial-induced carbonate precipitation (MICP) to improve the water stability, permeability, and hydraulic erosion resistance of phosphogypsum and evaluate its impact on the environment. In this paper, the phosphogypsum samples and artificial slopes were prepared and solidified by spraying various concentrations of bacteria solution and cementation solution to achieve microbial modification. The water stability and permeability test were used to calculate the mass of spalling under water shaking and the permeability coefficient. A rainfall scouring test was carried out to estimate the erosion resistance. The erosion degree was quantitatively calculated using 3D laser scanning technology. The results show that the microorganism treatment can improve water stability and reduce the permeability coefficient, while the differences between the content of CaCO3 in the outermost layer and in the inner layer gradually increase with the increase in bacterial concentration, and the permeability coefficient was reduced uniformly. The sediment loss of the slope after MICP treatment was much less than that of the untreated slope, and the connection force between the particles was strengthened. By observing the morphology of the scoured samples, we found that the treated particles were aggregated and flocculated with more macropores, which led to the formation of erosion pits under scouring. The pH of the outflow of the modified slope was neutral, and the heavy metal elements were fixed by microbial action and carbonate, which is not harmful to the environment. |
| WOS关键词 | BACTERIALLY INDUCED MINERALIZATION ; CALCIUM-CARBONATE ; MECHANICAL-PROPERTIES ; PRECIPITATION ; SOIL ; CEMENT ; SAND ; ASH ; EXOPOLYSACCHARIDES ; PERFORMANCE |
| 资助项目 | National Key Research and Development Plan of China[2019YFC1509903] ; National Natural Science Foundation of China[41790442] ; National Natural Science Foundation of China[42177146] ; Second Tibetan Plateau Scientific Expedition and Research Program (STEP)[2019QZKK0904] ; Key Research and Development Plan of Yunnan Province[202103AA080013] |
| WOS研究方向 | Chemistry ; Engineering ; Materials Science ; Physics |
| 语种 | 英语 |
| WOS记录号 | WOS:000762712000001 |
| 出版者 | MDPI |
| 资助机构 | National Key Research and Development Plan of China ; National Key Research and Development Plan of China ; National Key Research and Development Plan of China ; National Key Research and Development Plan of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Second Tibetan Plateau Scientific Expedition and Research Program (STEP) ; Second Tibetan Plateau Scientific Expedition and Research Program (STEP) ; Second Tibetan Plateau Scientific Expedition and Research Program (STEP) ; Second Tibetan Plateau Scientific Expedition and Research Program (STEP) ; Key Research and Development Plan of Yunnan Province ; Key Research and Development Plan of Yunnan Province ; Key Research and Development Plan of Yunnan Province ; Key Research and Development Plan of Yunnan Province ; National Key Research and Development Plan of China ; National Key Research and Development Plan of China ; National Key Research and Development Plan of China ; National Key Research and Development Plan of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Second Tibetan Plateau Scientific Expedition and Research Program (STEP) ; Second Tibetan Plateau Scientific Expedition and Research Program (STEP) ; Second Tibetan Plateau Scientific Expedition and Research Program (STEP) ; Second Tibetan Plateau Scientific Expedition and Research Program (STEP) ; Key Research and Development Plan of Yunnan Province ; Key Research and Development Plan of Yunnan Province ; Key Research and Development Plan of Yunnan Province ; Key Research and Development Plan of Yunnan Province ; National Key Research and Development Plan of China ; National Key Research and Development Plan of China ; National Key Research and Development Plan of China ; National Key Research and Development Plan of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Second Tibetan Plateau Scientific Expedition and Research Program (STEP) ; Second Tibetan Plateau Scientific Expedition and Research Program (STEP) ; Second Tibetan Plateau Scientific Expedition and Research Program (STEP) ; Second Tibetan Plateau Scientific Expedition and Research Program (STEP) ; Key Research and Development Plan of Yunnan Province ; Key Research and Development Plan of Yunnan Province ; Key Research and Development Plan of Yunnan Province ; Key Research and Development Plan of Yunnan Province ; National Key Research and Development Plan of China ; National Key Research and Development Plan of China ; National Key Research and Development Plan of China ; National Key Research and Development Plan of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Second Tibetan Plateau Scientific Expedition and Research Program (STEP) ; Second Tibetan Plateau Scientific Expedition and Research Program (STEP) ; Second Tibetan Plateau Scientific Expedition and Research Program (STEP) ; Second Tibetan Plateau Scientific Expedition and Research Program (STEP) ; Key Research and Development Plan of Yunnan Province ; Key Research and Development Plan of Yunnan Province ; Key Research and Development Plan of Yunnan Province ; Key Research and Development Plan of Yunnan Province |
| 源URL | [http://ir.iggcas.ac.cn/handle/132A11/104983]  |
| 专题 | 地质与地球物理研究所_中国科学院页岩气与地质工程重点实验室 |
| 通讯作者 | Li, Zhiqing |
| 作者单位 | 1.Chinese Acad Sci, Inst Geol & Geophys, Key Lab Shale Gas & Geoengn, Beijing 100029, Peoples R China 2.Univ Chinese Acad Sci, Coll Earth & Planetary Sci, Beijing 100049, Peoples R China 3.Chinese Acad Sci, Innovat Acad Earth Sci, Beijing 100029, Peoples R China 4.Yunnan Commun Investment & Construct Grp Co Ltd, Kunming 650100, Yunnan, Peoples R China 5.Yunnan Huiqiao Expressway Co Ltd, Qujing 654200, Peoples R China 6.China Inst Geotech Invest & Surveying, Beijing 100007, Peoples R China 7.Beijing Zhongyan Tiandi Technol Co Ltd, Beijing 100029, Peoples R China |
| 推荐引用方式 GB/T 7714 | Tian, Yifan,Li, Zhiqing,Wang, Shuangjiao,et al. Application of MICP in Water Stability and Hydraulic Erosion Control of Phosphogypsum Material in Slope[J]. APPLIED SCIENCES-BASEL,2022,12(4):18. |
| APA | Tian, Yifan,Li, Zhiqing,Wang, Shuangjiao,Zhou, Yingxin,Li, Dandan,&Fu, Le.(2022).Application of MICP in Water Stability and Hydraulic Erosion Control of Phosphogypsum Material in Slope.APPLIED SCIENCES-BASEL,12(4),18. |
| MLA | Tian, Yifan,et al."Application of MICP in Water Stability and Hydraulic Erosion Control of Phosphogypsum Material in Slope".APPLIED SCIENCES-BASEL 12.4(2022):18. |
入库方式： OAI收割
来源：地质与地球物理研究所
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