Long term additional load on a shield tunnel in soft clay due to clay consolidation with water leakage

Shigeaki Oka; Jin Saito; Yoshihiro Ito; Wei Li; Shunsuke Kaneko; Alireza Afshani; Hirokazu Akagi

doi:10.1201/9780429321559-46

Long term additional load on a shield tunnel in soft clay due to clay consolidation with water leakage

Shigeaki Oka, Jin Saito, Yoshihiro Ito, Wei Li, Shunsuke Kaneko, Alireza Afshani, Hirokazu Akagi

School of Creative Science and Engineering

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Abstract

In soft clay ground, shield tunnels suffer from additional load which is generated due to the consolidation of ground caused by water leakage into the tunnel. Therefore, it is important to make precise predictions of future additional loads when designing tunnel reinforcements. In this paper, the mechanism governing the additional load increase was clarified via three-dimensional FEM analysis. Moreover, a simple method to predict the convergence value of additional loads is proposed, comparing the calculation results of a two-dimensional analysis with the three-dimensional analysis.

Original language	English
Title of host publication	Geotechnical Aspects of Underground Construction in Soft Ground - Proceedings of the 10th International Symposium on Geotechnical Aspects of Underground Construction in Soft Ground, IS-CAMBRIDGE 2022
Editors	Mohammed Z.E.B. Elshafie, Giulia M.B. Viggiani, Robert J. Mair
Publisher	CRC Press/Balkema
Pages	357-364
Number of pages	8
ISBN (Electronic)	9780367337339
DOIs	https://doi.org/10.1201/9780429321559-46
Publication status	Published - 2021
Event	10th International Symposium on Geotechnical Aspects of Underground Construction in Soft Ground, IS-CAMBRIDGE 2022 - Cambridge, United Kingdom Duration: 2022 Jun 27 → 2022 Jun 29

Publication series

Name	Geotechnical Aspects of Underground Construction in Soft Ground - Proceedings of the 10th International Symposium on Geotechnical Aspects of Underground Construction in Soft Ground, IS-CAMBRIDGE 2022

Conference

Conference	10th International Symposium on Geotechnical Aspects of Underground Construction in Soft Ground, IS-CAMBRIDGE 2022
Country/Territory	United Kingdom
City	Cambridge
Period	22/6/27 → 22/6/29

ASJC Scopus subject areas

Civil and Structural Engineering
Building and Construction

Access to Document

10.1201/9780429321559-46

Cite this

Oka, S., Saito, J., Ito, Y., Li, W., Kaneko, S., Afshani, A., & Akagi, H. (2021). Long term additional load on a shield tunnel in soft clay due to clay consolidation with water leakage. In M. Z. E. B. Elshafie, G. M. B. Viggiani, & R. J. Mair (Eds.), Geotechnical Aspects of Underground Construction in Soft Ground - Proceedings of the 10th International Symposium on Geotechnical Aspects of Underground Construction in Soft Ground, IS-CAMBRIDGE 2022 (pp. 357-364). (Geotechnical Aspects of Underground Construction in Soft Ground - Proceedings of the 10th International Symposium on Geotechnical Aspects of Underground Construction in Soft Ground, IS-CAMBRIDGE 2022). CRC Press/Balkema. https://doi.org/10.1201/9780429321559-46

Long term additional load on a shield tunnel in soft clay due to clay consolidation with water leakage. / Oka, Shigeaki; Saito, Jin; Ito, Yoshihiro; Li, Wei; Kaneko, Shunsuke; Afshani, Alireza; Akagi, Hirokazu.

Geotechnical Aspects of Underground Construction in Soft Ground - Proceedings of the 10th International Symposium on Geotechnical Aspects of Underground Construction in Soft Ground, IS-CAMBRIDGE 2022. ed. / Mohammed Z.E.B. Elshafie; Giulia M.B. Viggiani; Robert J. Mair. CRC Press/Balkema, 2021. p. 357-364 (Geotechnical Aspects of Underground Construction in Soft Ground - Proceedings of the 10th International Symposium on Geotechnical Aspects of Underground Construction in Soft Ground, IS-CAMBRIDGE 2022).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Oka, S, Saito, J, Ito, Y, Li, W, Kaneko, S, Afshani, A & Akagi, H 2021, Long term additional load on a shield tunnel in soft clay due to clay consolidation with water leakage. in MZEB Elshafie, GMB Viggiani & RJ Mair (eds), Geotechnical Aspects of Underground Construction in Soft Ground - Proceedings of the 10th International Symposium on Geotechnical Aspects of Underground Construction in Soft Ground, IS-CAMBRIDGE 2022. Geotechnical Aspects of Underground Construction in Soft Ground - Proceedings of the 10th International Symposium on Geotechnical Aspects of Underground Construction in Soft Ground, IS-CAMBRIDGE 2022, CRC Press/Balkema, pp. 357-364, 10th International Symposium on Geotechnical Aspects of Underground Construction in Soft Ground, IS-CAMBRIDGE 2022, Cambridge, United Kingdom, 22/6/27. https://doi.org/10.1201/9780429321559-46

Oka S, Saito J, Ito Y, Li W, Kaneko S, Afshani A et al. Long term additional load on a shield tunnel in soft clay due to clay consolidation with water leakage. In Elshafie MZEB, Viggiani GMB, Mair RJ, editors, Geotechnical Aspects of Underground Construction in Soft Ground - Proceedings of the 10th International Symposium on Geotechnical Aspects of Underground Construction in Soft Ground, IS-CAMBRIDGE 2022. CRC Press/Balkema. 2021. p. 357-364. (Geotechnical Aspects of Underground Construction in Soft Ground - Proceedings of the 10th International Symposium on Geotechnical Aspects of Underground Construction in Soft Ground, IS-CAMBRIDGE 2022). https://doi.org/10.1201/9780429321559-46

Oka, Shigeaki ; Saito, Jin ; Ito, Yoshihiro ; Li, Wei ; Kaneko, Shunsuke ; Afshani, Alireza ; Akagi, Hirokazu. / Long term additional load on a shield tunnel in soft clay due to clay consolidation with water leakage. Geotechnical Aspects of Underground Construction in Soft Ground - Proceedings of the 10th International Symposium on Geotechnical Aspects of Underground Construction in Soft Ground, IS-CAMBRIDGE 2022. editor / Mohammed Z.E.B. Elshafie ; Giulia M.B. Viggiani ; Robert J. Mair. CRC Press/Balkema, 2021. pp. 357-364 (Geotechnical Aspects of Underground Construction in Soft Ground - Proceedings of the 10th International Symposium on Geotechnical Aspects of Underground Construction in Soft Ground, IS-CAMBRIDGE 2022).

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Long term additional load on a shield tunnel in soft clay due to clay consolidation with water leakage

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ASJC Scopus subject areas

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