IDEAS home Printed from https://ideas.repec.org/a/spr/nathaz/v83y2016i3d10.1007_s11069-016-2383-0.html
   My bibliography  Save this article

Experimental study on grouting in underconsolidated soil to control excessive settlement

Author

Listed:
  • Gang Zheng

    (Tianjin University
    Tianjin University
    Tianjin University)

  • Xiao-shuang Zhang

    (Tianjin University
    Tianjin University)

  • Yu Diao

    (Tianjin University
    Tianjin University)

  • Hua-yang Lei

    (Tianjin University
    Tianjin University)

Abstract

The underconsolidated soils in reclaimed land have low strength and high compressibility, resulting in susceptibility to excessive settlement and associated negative effects, which can be controlled by grouting. However, there is little research on the mechanism of grouting in underconsolidated soil, compared with the normally consolidated or overconsolidated soil. In this study, we present a series of laboratory grouting tests to investigate the grouting mechanism and the effect of degree of consolidation, soil type, load increment ratio and initial overlying load on the grouting performance. The results showed that the influence of grouting on primary consolidation settlement for underconsolidated soil included the heave effect, the additional settlement due to the dissipation of excess pore water pressure induced by grouting and the reduced settlement due to the increased modulus induced by grouting. However, grouting in underconsolidated soil had no influence on the secondary consolidation settlement. Grouting in underconsolidated soil with low degree of consolidation could obtain a shorter time of primary consolidation and a higher final grouting efficiency in primary consolidation stage. The final grouting efficiency in primary consolidation stage increased linearly with increasing load increment ratio, but decreased with increasing initial overlying load. As the overconsolidation ratio increased, the final grouting efficiency in primary consolidation stage decreased for underconsolidated soil, dropping to the lowest value for normally consolidated soil and then increased for the overconsolidated soil, reaching a limit. Moreover, the peak grouting pressure was proportional to the vertical effective stress at the beginning of grouting.

Suggested Citation

  • Gang Zheng & Xiao-shuang Zhang & Yu Diao & Hua-yang Lei, 2016. "Experimental study on grouting in underconsolidated soil to control excessive settlement," 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. 83(3), pages 1683-1701, September.
    • Handle: RePEc:spr:nathaz:v:83:y:2016:i:3:d:10.1007_s11069-016-2383-0
    DOI: 10.1007/s11069-016-2383-0
    as

    Download full text from publisher

    File URL: http://link.springer.com/10.1007/s11069-016-2383-0
    File Function: Abstract
    Download Restriction: Access to the full text of the articles in this series is restricted.
    File URL: https://libkey.io/10.1007/s11069-016-2383-0?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
    ---><---

    As the access to this document is restricted, you may want to search for a different version of it.

    References listed on IDEAS

    as
    1. Zhen-Dong Cui & Shi-Xi Ren, 2014. "Prediction of long-term settlements of subway tunnel in the soft soil area," 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. 74(2), pages 1007-1020, November.
    2. Qing-Long Cui & Huai-Na Wu & Shui-Long Shen & Ye-Shuang Xu & Guan-Lin Ye, 2015. "Chinese karst geology and measures to prevent geohazards during shield tunnelling in karst region with caves," 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. 77(1), pages 129-152, May.
    3. Zhen-Dong Cui & Jun Tan, 2015. "Analysis of long-term settlements of Shanghai Subway Line 1 based on the in situ monitoring data," 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. 75(1), pages 465-472, January.
    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. Xin Huang & Shucai Li & Zhenhao Xu & Ming Guo & Yucheng Chen, 2018. "Assessment of a Concealed Karst Cave’s Influence on Karst Tunnel Stability: A Case Study of the Huaguoshan Tunnel, China," Sustainability, MDPI, vol. 10(7), pages 1-26, June.
    2. Lin, Song-Shun & Shen, Shui-Long & Zhou, Annan & Xu, Ye-Shuang, 2021. "Novel model for risk identification during karst excavation," Reliability Engineering and System Safety, Elsevier, vol. 209(C).
    3. Xiuling Wang & Jinxing Lai & Siyue He & Rodney Sheldon Garnes & Yuwei Zhang, 2020. "Karst geology and mitigation measures for hazards during metro system construction in Wuhan, China," 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(3), pages 2905-2927, September.
    4. Shangqu Sun & Liping Li & Jing Wang & Shaoshuai Shi & Shuguang Song & Zhongdong Fang & Xingzhi Ba & Hao Jin, 2018. "Karst Development Mechanism and Characteristics Based on Comprehensive Exploration along Jinan Metro, China," Sustainability, MDPI, vol. 10(10), pages 1-21, September.

    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:spr:nathaz:v:83:y:2016:i:3:d:10.1007_s11069-016-2383-0. 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: Sonal Shukla or Springer Nature Abstracting and Indexing (email available below). General contact details of provider: http://www.springer.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.