Study on the Deformation of Filling Bodies in a Loess Mountainous Area Based on InSAR and Monitoring Equipment
文献类型：期刊论文
| 作者 | Wu, Yuming1; Lan, Hengxing1,2 |
| 刊名 | LAND
 |
| 出版日期 | 2022-08-01 |
| 卷号 | 11期号:8页码:17 |
| 关键词 | InSAR loess in situ deformation land creation |
| DOI | 10.3390/land11081263 |
| 通讯作者 | Lan, Hengxing(lanhx@lreis.ac.cn) |
| 英文摘要 | Several land-creation projects, such as the Lanzhou New Area (LNA), have been undertaken in China as part of the Belt and Road Initiative to bring more living space to the local people in loess areas. However, undisturbed loess and remolded loess have different mechanical characteristics, which may influence the stability of the filling process. Therefore, we monitored the deformation through InSAR and field monitoring to investigate the deformation characteristics and their causes. We obtained the horizontal and vertical displacements, internal deformation, water content, and pressure, according to the air-space-ground integrated monitoring technique. The results show that stress and deformation increase rapidly during construction. Deformation in different places is different during the winter: (1) for vertical displacement, uplift is present in the cut area, settlement is present in the fill area, and heterogeneity is evident in other areas; (2) for horizontal displacement, the expansion state is present in the filling area and the compression state is present at the boundary. Laboratory tests show that the difference in soil compression properties is one of the reasons for these deformation characteristics. Additionally, the difference in volumetric water content and permeability coefficient may trigger different mechanical properties on both sides of the boundary. All the evidence indicates that the boundary region is critical for filling projects. It is also necessary to install monitoring equipment to observe deformation. When abnormal deformations appear, we should take measures to control them. |
| WOS关键词 | MALAN LOESS ; COLLAPSE MECHANISM ; LAND CREATION ; LANZHOU ; PLATEAU ; CHINA ; LANDSLIDE ; COMPRESSIBILITY ; DISPLACEMENT ; GROUNDWATER |
| 资助项目 | National Natural Science Foundation of China[41927806] ; National Natural Science Foundation of China[42041006] ; National Natural Science Foundation of China[41790443] ; Strategic Priority Research Program of the Chinese Academy of Sciences (CAS)[XDA23090301] |
| WOS研究方向 | Environmental Sciences & Ecology |
| 语种 | 英语 |
| WOS记录号 | WOS:000845520100001 |
| 出版者 | MDPI |
| 资助机构 | National Natural Science Foundation of China ; Strategic Priority Research Program of the Chinese Academy of Sciences (CAS) |
| 源URL | [http://ir.igsnrr.ac.cn/handle/311030/182167]  |
| 专题 | 中国科学院地理科学与资源研究所 |
| 通讯作者 | Lan, Hengxing |
| 作者单位 | 1.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, State Key Lab Resources & Environm Informat Syst, Beijing 100101, Peoples R China 2.Changan Univ, Coll Geol Engn & Geomat, Xian 710054, Peoples R China |
| 推荐引用方式 GB/T 7714 | Wu, Yuming,Lan, Hengxing. Study on the Deformation of Filling Bodies in a Loess Mountainous Area Based on InSAR and Monitoring Equipment[J]. LAND,2022,11(8):17. |
| APA | Wu, Yuming,&Lan, Hengxing.(2022).Study on the Deformation of Filling Bodies in a Loess Mountainous Area Based on InSAR and Monitoring Equipment.LAND,11(8),17. |
| MLA | Wu, Yuming,et al."Study on the Deformation of Filling Bodies in a Loess Mountainous Area Based on InSAR and Monitoring Equipment".LAND 11.8(2022):17. |
入库方式： OAI收割
来源：地理科学与资源研究所
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