IDEAS home Printed from https://ideas.repec.org/a/hin/jnlmpe/9589638.html
   My bibliography  Save this article

One-Dimensional Vacuum Steady Seepage Model of Unsaturated Soil and Finite Difference Solution

Author

Listed:
  • Feng Huang
  • Jianguo Lyu
  • Guihe Wang
  • Hongyan Liu

Abstract

Vacuum tube dewatering method and light well point method have been widely used in engineering dewatering and foundation treatment. However, there is little research on the calculation method of unsaturated seepage under the effect of vacuum pressure which is generated by the vacuum well. In view of this, the one-dimensional (1D) steady seepage law of unsaturated soil in vacuum field has been analyzed based on Darcy’s law, basic equations, and finite difference method. First, the gravity drainage ability is analyzed. The analysis presents that much unsaturated water can not be drained off only by gravity effect because of surface tension. Second, the unsaturated vacuum seepage equations are built up in conditions of flux boundary and waterhead boundary. Finally, two examples are analyzed based on the relationship of matric suction and permeability coefficient after boundary conditions are determined. The results show that vacuum pressure will significantly enhance the drainage ability of unsaturated water by improving the hydraulic gradient of unsaturated water.

Suggested Citation

  • Feng Huang & Jianguo Lyu & Guihe Wang & Hongyan Liu, 2017. "One-Dimensional Vacuum Steady Seepage Model of Unsaturated Soil and Finite Difference Solution," Mathematical Problems in Engineering, Hindawi, vol. 2017, pages 1-7, March.
    • Handle: RePEc:hin:jnlmpe:9589638
    DOI: 10.1155/2017/9589638
    as

    Download full text from publisher

    File URL: http://downloads.hindawi.com/journals/MPE/2017/9589638.pdf
    Download Restriction: no
    File URL: http://downloads.hindawi.com/journals/MPE/2017/9589638.xml
    Download Restriction: no
    File URL: https://libkey.io/10.1155/2017/9589638?utm_source=ideas
    LibKey link: if access is restricted and if your library uses this service, LibKey will redirect you to where you can use your library subscription to access this item
    ---><---

    Citations

    Citations are extracted by the CitEc Project, subscribe to its RSS feed for this item.
    as


    Cited by:

    1. Yongqiang Yu & Jinzhao Tang & Lidan Fan & Cong Guo & Jiyun Zhang & Jie Yang, 2022. "Development of Vacuum Tube Well Dewatering Test Device and Study on Vacuum Degree Transfer Law," Sustainability, MDPI, vol. 14(24), pages 1-16, December.

    More about this item

    Statistics

    Access and download statistics

    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:hin:jnlmpe:9589638. 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.

    We have no bibliographic references for this item. You can help adding them by using 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: Mohamed Abdelhakeem (email available below). General contact details of provider: https://www.hindawi.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.