Study on the deformation mechanism of anti-piles in Majiagou landslide in Three Gorges Reservoir Area, China
文献类型：期刊论文
| 作者 | Zhang, Zhenhua2,3; Xi, Banglu2,3; Huang, Xiang1; Wang, Leilei2,3 |
| 刊名 | BULLETIN OF ENGINEERING GEOLOGY AND THE ENVIRONMENT
 |
| 出版日期 | 2023-12-01 |
| 卷号 | 82期号:12页码:14 |
| 关键词 | Strength degradation Slope cracking mechanism Majiagou slope Reservoir impoundment Anti-piles |
| ISSN号 | 1435-9529 |
| DOI | 10.1007/s10064-023-03482-z |
| 英文摘要 | In the Majiagou landslide of the Three Gorges Reservoir Area, there appears a wide crack between the anti-pile and sliding body behind the piles, which can hardly be clarified by the sliding force of the sliding body. Therefore, the deformation mechanism of anti-piles in the Majiagou landslide was studied to explain how the crack appears between the anti-pile and sliding body behind the piles from perspectives of embedded rock degradation and declining water level. The mechanical degradation of the embedded rock was studied experimentally with triaxial compression and Brazilian splitting tests at first. Then, the embedded rock degradation and declining water level were introduced into the FLAC3D model, where the deformation mechanism of anti-piles and soils behind the anti-piles were studied. The results show that the rock resistances in front of anti-piles gradually decrease and the embedding effect of anti-piles gradually weakens due to the embedded rock degradation, resulting in plastic deformation in the rock and forward inclination of anti-piles. In addition, the declining water level leads to an increasing seepage force, leading to an increasing sliding deformation of the sliding body in front of the anti-piles, which weakens the front support of the anti-pile. Thus, the anti-pile displacements continually increase and exceed those of the sliding body behind the pile, and a wide crack appears between the anti-pile and sliding body behind the piles as a result. Consequently, the mechanical and deformation parameters after degradation should be employed for the reinforcement design of anti-piles in reservoir bank slopes. |
| 资助项目 | National Natural Science Foundation of China[51979068] ; National Natural Science Foundation of China[52209127] ; Fundamental Research Funds for the Central Universities of China[JZ2021HGTA0154] |
| WOS研究方向 | Engineering ; Geology |
| 语种 | 英语 |
| WOS记录号 | WOS:001103908100001 |
| 出版者 | SPRINGER HEIDELBERG |
| 源URL | [http://119.78.100.198/handle/2S6PX9GI/39932]  |
| 专题 | 中科院武汉岩土力学所 |
| 通讯作者 | Xi, Banglu |
| 作者单位 | 1.Chinese Acad Sci, Inst Rock & Soil Mech, State Key Lab Geomech & Geotech Engn, Wuhan 430071, Hubei, Peoples R China 2.Hefei Univ Technol, Coll Civil Engn, Hefei 230009, Peoples R China 3.Hefei Univ Technol, Anhui Key Lab Civil Engn Struct & Mat, Hefei 230009, Peoples R China |
| 推荐引用方式 GB/T 7714 | Zhang, Zhenhua,Xi, Banglu,Huang, Xiang,et al. Study on the deformation mechanism of anti-piles in Majiagou landslide in Three Gorges Reservoir Area, China[J]. BULLETIN OF ENGINEERING GEOLOGY AND THE ENVIRONMENT,2023,82(12):14. |
| APA | Zhang, Zhenhua,Xi, Banglu,Huang, Xiang,&Wang, Leilei.(2023).Study on the deformation mechanism of anti-piles in Majiagou landslide in Three Gorges Reservoir Area, China.BULLETIN OF ENGINEERING GEOLOGY AND THE ENVIRONMENT,82(12),14. |
| MLA | Zhang, Zhenhua,et al."Study on the deformation mechanism of anti-piles in Majiagou landslide in Three Gorges Reservoir Area, China".BULLETIN OF ENGINEERING GEOLOGY AND THE ENVIRONMENT 82.12(2023):14. |
入库方式： OAI收割
来源：武汉岩土力学研究所
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