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Volume 34 Issue 6
Dec 2023
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Article Contents
Xiaokun Hou, Shengwen Qi, Yongtang Yu, Jianguo Zheng. Long-Term Settlement Characterization of High-Filling Foundation in the Mountain Excavation and City Construction Area of the Yan'an New District, China. Journal of Earth Science, 2023, 34(6): 1908-1915. doi: 10.1007/s12583-023-1950-x
Citation: Xiaokun Hou, Shengwen Qi, Yongtang Yu, Jianguo Zheng. Long-Term Settlement Characterization of High-Filling Foundation in the Mountain Excavation and City Construction Area of the Yan'an New District, China. Journal of Earth Science, 2023, 34(6): 1908-1915. doi: 10.1007/s12583-023-1950-x

Long-Term Settlement Characterization of High-Filling Foundation in the Mountain Excavation and City Construction Area of the Yan'an New District, China

doi: 10.1007/s12583-023-1950-x
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  • Corresponding author: Shengwen Qi, qishengwen@mail.iggcas.ac.cn
  • Received Date: 17 May 2023
  • Accepted Date: 21 Oct 2023
  • Available Online: 08 Dec 2023
  • Issue Publish Date: 30 Dec 2023
  • Mountain Excavation and City Construction (MECC) represents a prominent anthropogenic endeavor aimed at facilitating urban expansion in the Loess Plateau of China. It is important to comprehend the long-term settlement behavior at MECC engineering sites to effectively assess the project's success in reshaping landscapes and expanding urban areas. In this study, a typical MECC project, specifically the upstream area of the Liujiagou Valley within the new district of Yan'an City, is selected as a case study to investigate long-term settlement characteristics. The research involved conducting creep tests on soil samples with varying dry densities and moisture content and continuous in-situ monitoring of ground surface settlement at 17 specific points. Furthermore, a numerical model was developed and calibrated using the in-situ monitoring data to predict the long-term settlement. The findings reveal that an increase in soil dry density and a decrease in soil water content contribute to reduced deformation. Notably, settlement primarily manifests within the filled areas, with greater soil thickness exacerbating settlement effects. Over time, cumulative settlement exhibits a progressively diminishing rate of deformation until it attains a stable state. These results provide insights for assessing the long-term stability of MECC projects, facilitating decision-making in future endeavors within this region.

     

  • Conflict of Interest
    The authors declare that they have no conflict of interest.
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