IDEAS home Printed from https://ideas.repec.org/a/gam/jsusta/v15y2022i1p543-d1018236.html
   My bibliography  Save this article

Land Subsidence Characteristics and Numerical Analysis of the Impact on Major Infrastructure in Ningbo, China

Author

Listed:
  • Feng Gao

    (Ningbo Administration and Service Centre for Marine and Ecological Restoration of Natural Resources, Ningbo 315000, China)

  • Tuanzhi Zhao

    (Ningbo Administration and Service Centre for Marine and Ecological Restoration of Natural Resources, Ningbo 315000, China)

  • Xuebin Zhu

    (School of Civil Engineering & Architecture, NingboTech University, Ningbo 315100, China)

  • Lingwei Zheng

    (School of Civil Engineering & Architecture, NingboTech University, Ningbo 315100, China)

  • Wenjun Wang

    (School of Civil Engineering & Architecture, NingboTech University, Ningbo 315100, China)

  • Xudong Zheng

    (Institute of Wenzhou, Zhejiang University, Wenzhou 325000, China)

Abstract

For the construction and safe operation of major infrastructure in coastal cities, the impact of regional land subsidence that has occurred or is slowly proceeding deserves attention. Previous studies have mainly focused on the surrounding land subsidence caused during construction or operation, as well as the superposition effect of land subsidence caused by groundwater extraction. However, research on the different impacts of damage due to land subsidence in the construction and operation of urban infrastructure needs to be carried out according to the actual geological environmental conditions, reflected in parameters such as the soil properties and common loads. Numerical simulation cannot fully reflect the details of reality; however, it can avoid the influence of other conditions to focus on different factors influencing land subsidence and thus highlight the contribution of a single factor influencing land subsidence. Therefore, in this paper, we adopt field measurement data and carry out a numerical simulation analysis of different influencing factors. First, taking the Ningbo Jiangdong subsidence center (now located in Yinzhou District) as an example, area growth, cumulative subsidence and the occurrence and development of the subsidence rate of a typical urban subsidence funnel area are analyzed. Then, taking the Ningbo Chunxiao–Meishan area as an example, based on the physical and mechanical characteristics of the main soil layers in the coastal reclamation area, a numerical analysis of the self-weight/backfill and surcharge consolidation settlement of the soil layer (considering the water permeability/impermeability of the bottom surface) and a numerical analysis of the nonuniform settlement caused by pile foundation engineering are carried out. Finally, the Ximenkou–Gulou area is taken as the analysis object. Numerical simulation of metro tunnel pipeline deformation is carried out considering uniform/nonuniform settlement. The results show that the comprehensive prohibition of groundwater exploitation is beneficial to slow the land subsidence rate, while the sedimentation of silty clay in Layer 4 (muddy clay) is the largest among all the soil layers. Compared with uniform settlement, nonuniform settlement is more likely to cause connection failure between tunnel segments. The above research results can provide references for the prevention and control of land subsidence and thus the safe operation of major infrastructure.

Suggested Citation

  • Feng Gao & Tuanzhi Zhao & Xuebin Zhu & Lingwei Zheng & Wenjun Wang & Xudong Zheng, 2022. "Land Subsidence Characteristics and Numerical Analysis of the Impact on Major Infrastructure in Ningbo, China," Sustainability, MDPI, vol. 15(1), pages 1-18, December.
  • Handle: RePEc:gam:jsusta:v:15:y:2022:i:1:p:543-:d:1018236
    as

    Download full text from publisher

    File URL: https://www.mdpi.com/2071-1050/15/1/543/pdf
    Download Restriction: no

    File URL: https://www.mdpi.com/2071-1050/15/1/543/
    Download Restriction: no
    ---><---

    References listed on IDEAS

    as
    1. Hiroshi Takagi & Daisuke Fujii & Miguel Esteban & Xiong Yi, 2017. "Effectiveness and Limitation of Coastal Dykes in Jakarta: The Need for Prioritizing Actions against Land Subsidence," Sustainability, MDPI, vol. 9(4), pages 1-15, April.
    Full references (including those not matched with items on IDEAS)

    Most related items

    These are the items that most often cite the same works as this one and are cited by the same works as this one.
    1. Vana Tsimopoulou & Takahito Mikami & Tajnova Tanha Hossain & Hiroshi Takagi & Miguel Esteban & Nuki Agya Utama, 2020. "Uncovering unnoticed small-scale tsunamis: field survey in Lombok, Indonesia, following the 2018 earthquakes," Natural Hazards: Journal of the International Society for the Prevention and Mitigation of Natural Hazards, Springer;International Society for the Prevention and Mitigation of Natural Hazards, vol. 103(2), pages 2045-2070, September.
    2. Hiroshi Takagi, 2018. "Long-Term Design of Mangrove Landfills as an Effective Tide Attenuator under Relative Sea-Level Rise," Sustainability, MDPI, vol. 10(4), pages 1-15, April.
    3. Ezekiel Grant & Nikolaos Iliopoulos & Miguel Esteban & Motoharu Onuki, 2024. "A tale of two (Florida) cities: perceptions of flooding risk and adaptation in Tampa’s Hyde Park and Saint Augustine," Mitigation and Adaptation Strategies for Global Change, Springer, vol. 29(8), pages 1-20, December.

    Corrections

    All material on this site has been provided by the respective publishers and authors. You can help correct errors and omissions. When requesting a correction, please mention this item's handle: RePEc:gam:jsusta:v:15:y:2022:i:1:p:543-:d:1018236. See general information about how to correct material in RePEc.

    If you have authored this item and are not yet registered with RePEc, we encourage you to do it here. This allows to link your profile to this item. It also allows you to accept potential citations to this item that we are uncertain about.

    If CitEc recognized a bibliographic reference but did not link an item in RePEc to it, you can help with this form .

    If you know of missing items citing this one, you can help us creating those links by adding the relevant references in the same way as above, for each refering item. If you are a registered author of this item, you may also want to check the "citations" tab in your RePEc Author Service profile, as there may be some citations waiting for confirmation.

    For technical questions regarding this item, or to correct its authors, title, abstract, bibliographic or download information, contact: MDPI Indexing Manager (email available below). General contact details of provider: https://www.mdpi.com .

    Please note that corrections may take a couple of weeks to filter through the various RePEc services.

    IDEAS is a RePEc service. RePEc uses bibliographic data supplied by the respective publishers.