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Research on Present Situation and the New Technology About Reinforcement in Collapsible Loess Foundation Inside Tunnels

Received: 17 March 2021     Accepted: 26 March 2021     Published: 16 April 2021
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Abstract

The tunnel foundations treatment is the key and difficult point of the research of the tunnel in collapsible loess areas. The characteristics and advantages of the common foundations treatment technology for tunnels of loess areas are summarized in this paper, at the same time, the characteristics of a new technology for the non-vibration compaction treatment technology developed by the Northwest Research Institute Co., Ltd. of China Railway Engineering Corporation are introduced, which is suitable for the foundation reinforcement treatment of the tunnel in collapsible loess areas. Through the field experiment of base treatment of high-speed railway tunnel of the Baoji–Lanzhou High-Speed Railway Passenger Dedicated Line, it is demonstrated that the new non-vibration compaction machine has the advantages of convenient movement, controllable treatment effect, miniaturization, low cost and so on. The advancement and maneuverability are verified from the soil compaction coefficient between piles and the change law of collapsibility of the soil between piles under the different pile spacing conditions. The research results can provide new techniques and methods for the foundation reinforcement treatment of the tunnel of small space, strictly controlling construction vibration in collapsible loess areas.

Published in Engineering and Applied Sciences (Volume 6, Issue 2)
DOI 10.11648/j.eas.20210602.11
Page(s) 33-40
Creative Commons

This is an Open Access article, distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution and reproduction in any medium or format, provided the original work is properly cited.

Copyright

Copyright © The Author(s), 2021. Published by Science Publishing Group

Keywords

Tunnel, Loess Foundation, Reinforcement, No Vibration Compacting

References
[1] WANG X D. Treatment technology of collapsible loess tunnel basement on Zhengzhou-Xi'an Railway Passenger Dedicated Line [J]. Railway Standard Design, 2007 (S1): 90-92.
[2] LIU D G, WANG M N, PANG L X. Field test study on root pile of foundation base in loess tunnel [J]. Hydrogeology & Engineering Geology, 2008 (02): 120-123.
[3] LI L. Study on strengthening technology used in tunnel foundation base of Ballasstless-track Heavy-haul Railway [J]. Railway Standard Design, 2014, 58 (05): 95-99.
[4] FU W. Distribution rules of collapsible loess and analysis on foundation treatment technology on Baoji-Lanzhou Passenger Dedicated Line [J]. Railway Standard Design, 2014, 58 (11): 15-19.
[5] FAN W, SHAO S J, YANG CH M, et al. Method for calculating collapsible compressive stress of loess tunnel foundation [J]. Chinese Journal of Geotechnical Engineering, 2015, 37 (S2): 80-85.
[6] LI G L, SHAO SH J, JIN B C, et al. Research on the problems of collapsibility of loess tunnel foundation [J]. Journal of Railway Engineering Society, 2015, 32 (12): 12-16+50.
[7] CHEN F J, LIU J G, FANG Q B, et al. stability research of loess tunnel subsoil reinforced by cement soil compaction piles [J]. Railway Engineering, 2017 (07): 85-87.
[8] SUN B. Application of non-vibration compaction technology of foundation treatment in collapsible loess tunnel [J]. Railway Engineering, 2017 (03): 70-72.
[9] WANG X ZH, et al. Construction technology of large section loess tunnel [M]. Beijing: China Railway Press, 2009.
[10] MI W J, JIA Y, QU Y H, et al. Research on the stress characteristics of transverse static pressure with compaction technology on loss foundation [J]. Journal of Railway Engineering Society, 2016, 33 (1): 16-51.
[11] TANG SH D, LI Y. Analysis on consolidation mode in saturated clayed soil foundation around pile and its solution by progression [J]. Site Investigation Science and Technology, 2005 (03): 3-6+25.
[12] LI B X, NIU Y H, MIAO T D. Physico-mechanical characteristics of Malan loess in Lanzhou region [J]. Rock and Soil Mechanics, 2007, 28 (6): 1077-1082.
[13] MI W J, JIA Y, JIA Y, et al. Exploration on the compaction effect of static pressure in foundation of loess tunnel of Baoji - Lanzhou Passenger Dedicated Line [J]. Journal of Railway Engineering Society, 2015 (11): 98-19.
[14] National Standard of the People's Republic of China. Building Code for Collapsible Loess Area (GB50025-2018) [S]. Beijing: China Construction Industry Press, 2018.
[15] Ministry of Railways of the People's Republic of China. Technical Regulations for Foundation Treatment of Railway Engineering (TB 10106—2010) [S]. Beijing: China Railway Publishing House, 2010.
Cite This Article
  • APA Style

    Zhao Yonghu, Han Kan, Jiang Yuhua, Mi Weijun, Xue Chunxiao, et al. (2021). Research on Present Situation and the New Technology About Reinforcement in Collapsible Loess Foundation Inside Tunnels. Engineering and Applied Sciences, 6(2), 33-40. https://doi.org/10.11648/j.eas.20210602.11

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    ACS Style

    Zhao Yonghu; Han Kan; Jiang Yuhua; Mi Weijun; Xue Chunxiao, et al. Research on Present Situation and the New Technology About Reinforcement in Collapsible Loess Foundation Inside Tunnels. Eng. Appl. Sci. 2021, 6(2), 33-40. doi: 10.11648/j.eas.20210602.11

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    AMA Style

    Zhao Yonghu, Han Kan, Jiang Yuhua, Mi Weijun, Xue Chunxiao, et al. Research on Present Situation and the New Technology About Reinforcement in Collapsible Loess Foundation Inside Tunnels. Eng Appl Sci. 2021;6(2):33-40. doi: 10.11648/j.eas.20210602.11

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  • @article{10.11648/j.eas.20210602.11,
      author = {Zhao Yonghu and Han Kan and Jiang Yuhua and Mi Weijun and Xue Chunxiao and Wu Xiaopeng},
      title = {Research on Present Situation and the New Technology About Reinforcement in Collapsible Loess Foundation Inside Tunnels},
      journal = {Engineering and Applied Sciences},
      volume = {6},
      number = {2},
      pages = {33-40},
      doi = {10.11648/j.eas.20210602.11},
      url = {https://doi.org/10.11648/j.eas.20210602.11},
      eprint = {https://article.sciencepublishinggroup.com/pdf/10.11648.j.eas.20210602.11},
      abstract = {The tunnel foundations treatment is the key and difficult point of the research of the tunnel in collapsible loess areas. The characteristics and advantages of the common foundations treatment technology for tunnels of loess areas are summarized in this paper, at the same time, the characteristics of a new technology for the non-vibration compaction treatment technology developed by the Northwest Research Institute Co., Ltd. of China Railway Engineering Corporation are introduced, which is suitable for the foundation reinforcement treatment of the tunnel in collapsible loess areas. Through the field experiment of base treatment of high-speed railway tunnel of the Baoji–Lanzhou High-Speed Railway Passenger Dedicated Line, it is demonstrated that the new non-vibration compaction machine has the advantages of convenient movement, controllable treatment effect, miniaturization, low cost and so on. The advancement and maneuverability are verified from the soil compaction coefficient between piles and the change law of collapsibility of the soil between piles under the different pile spacing conditions. The research results can provide new techniques and methods for the foundation reinforcement treatment of the tunnel of small space, strictly controlling construction vibration in collapsible loess areas.},
     year = {2021}
    }
    

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  • TY  - JOUR
    T1  - Research on Present Situation and the New Technology About Reinforcement in Collapsible Loess Foundation Inside Tunnels
    AU  - Zhao Yonghu
    AU  - Han Kan
    AU  - Jiang Yuhua
    AU  - Mi Weijun
    AU  - Xue Chunxiao
    AU  - Wu Xiaopeng
    Y1  - 2021/04/16
    PY  - 2021
    N1  - https://doi.org/10.11648/j.eas.20210602.11
    DO  - 10.11648/j.eas.20210602.11
    T2  - Engineering and Applied Sciences
    JF  - Engineering and Applied Sciences
    JO  - Engineering and Applied Sciences
    SP  - 33
    EP  - 40
    PB  - Science Publishing Group
    SN  - 2575-1468
    UR  - https://doi.org/10.11648/j.eas.20210602.11
    AB  - The tunnel foundations treatment is the key and difficult point of the research of the tunnel in collapsible loess areas. The characteristics and advantages of the common foundations treatment technology for tunnels of loess areas are summarized in this paper, at the same time, the characteristics of a new technology for the non-vibration compaction treatment technology developed by the Northwest Research Institute Co., Ltd. of China Railway Engineering Corporation are introduced, which is suitable for the foundation reinforcement treatment of the tunnel in collapsible loess areas. Through the field experiment of base treatment of high-speed railway tunnel of the Baoji–Lanzhou High-Speed Railway Passenger Dedicated Line, it is demonstrated that the new non-vibration compaction machine has the advantages of convenient movement, controllable treatment effect, miniaturization, low cost and so on. The advancement and maneuverability are verified from the soil compaction coefficient between piles and the change law of collapsibility of the soil between piles under the different pile spacing conditions. The research results can provide new techniques and methods for the foundation reinforcement treatment of the tunnel of small space, strictly controlling construction vibration in collapsible loess areas.
    VL  - 6
    IS  - 2
    ER  - 

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Author Information
  • Northwest Research Institute Co., Ltd. of China Railway Engineering Corporation, Lanzhou, China

  • China Raliway Academy Co., Ltd of China Railway Engineering Corporation, Chengdu, China

  • Northwest Research Institute Co., Ltd. of China Railway Engineering Corporation, Lanzhou, China

  • Northwest Research Institute Co., Ltd. of China Railway Engineering Corporation, Lanzhou, China

  • Northwest Research Institute Co., Ltd. of China Railway Engineering Corporation, Lanzhou, China

  • College of Civil Engineering and Architecture, Jiaxing University, Jiaxing, China

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