The deformation evolution law and stability evaluation of the high-filled slope in the cutting hills to backfill ditches project
文献类型：期刊论文
| 作者 | Hu, Jun2,3; Yuan, Wei1; Fu, Xiaodong3,4; Zhang, Zhenping5; Zhou, Yongqiang3,4; Chai, Shaobo2; Cheng, Yongliang1,3; Sheng, Qian3,4 |
| 刊名 | FRONTIERS IN EARTH SCIENCE
 |
| 出版日期 | 2023-03-08 |
| 卷号 | 11期号:-页码:- |
| 关键词 | cutting hills to backfill ditches high-filled slope soil-rock mixture deformation stability monitor |
| 英文摘要 | The cutting hills to back ditches (CHBD) project has been widely implemented since urbanization in hilly areas is steadily rising. The stability of the high-filled slope and the problem of foundation settlement deformation has become one of the vital issues for safe construction. This paper focused on the deformation evolution law and stability assessment of the high-filled deposit slope composed of the soil-rock mixture (S-RM) in the CHBD project, in Shiyan City, Hubei Province as examples. First, large-scale direct shear tests of S-RM with different rock block proportions (RBPs) under different various normal stresses were carried out, and its mechanical properties were analyzed. Next, the finite element method was used to simulate the processes of the step-by-step filling, and the deformation evolution law was analyzed. Then, the limited equilibrium method (LEM) was used to obtain the potential sliding surfaces and the corresponding safety factors of the high-filled slope, and the safety of the construction was assessed. Finally, automated monitoring of the step-by-step settlement and deep soil deformation was computerized for the typical locations, and the long-term stability of the high-filled slope was studied. The results demonstrate that the first layer of backfill in the F area contains the largest incremental settlement displacement in the y-direction, whereas the value in the G area occurs at the site of the fill layer close to the slope surface at each filling timestep. The displacement response value steadily declines with the increasing filling depth and horizontal displacement, presenting a clear spatial influence range, with the site of maximum incremental displacement as the center. After filling, the safety factors of the potential sliding surface in the F and G areas are 2.531 and 1.118, respectively, and the slope is in a stable state. The monitoring data show that the deformation mostly takes place within 10 m of the surface. The study's findings are thought to offer technical and practical knowledge for the slope risks. |
| 学科主题 | Geology |
| 语种 | 英语 |
| WOS记录号 | WOS:000953247100001 |
| 出版者 | FRONTIERS MEDIA SA |
| 源URL | [http://119.78.100.198/handle/2S6PX9GI/35479]  |
| 专题 | 中科院武汉岩土力学所 |
| 作者单位 | 1.Key Laboratory of Roads and Railway Engineering Safety Control of Ministry of Education, Shijiazhuang Tiedao University, Shijiazhuang, China 2.School of Civil Engineering, Chang’an University, Xi’an, China 3.State Key Laboratory of Geomechanics and Geotechnical Engineering, Institute of Rock and Soil Mechanics, Chinese Academy of Sciences, Wuhan, China 4.School of Engineering Science, University of Chinese Academy of Sciences, Beijing, China 5.School of Architecture and Civil Engineering, Shenyang University of Technology, Shenyang, China |
| 推荐引用方式 GB/T 7714 | Hu, Jun,Yuan, Wei,Fu, Xiaodong,et al. The deformation evolution law and stability evaluation of the high-filled slope in the cutting hills to backfill ditches project[J]. FRONTIERS IN EARTH SCIENCE,2023,11(-):-. |
| APA | Hu, Jun.,Yuan, Wei.,Fu, Xiaodong.,Zhang, Zhenping.,Zhou, Yongqiang.,...&Sheng, Qian.(2023).The deformation evolution law and stability evaluation of the high-filled slope in the cutting hills to backfill ditches project.FRONTIERS IN EARTH SCIENCE,11(-),-. |
| MLA | Hu, Jun,et al."The deformation evolution law and stability evaluation of the high-filled slope in the cutting hills to backfill ditches project".FRONTIERS IN EARTH SCIENCE 11.-(2023):-. |
入库方式： OAI收割
来源：武汉岩土力学研究所
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