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Behavior of braced excavated earth retaining wall using strut-shaped ground improvement in soft clay

  • Takao KonoEmail author
  • Atsushi Kurihara
  • Tomohide Oshita
Conference paper
Part of the Lecture Notes in Civil Engineering book series (LNCE, volume 62)

Abstract

In recent years, there has been an increasing amount of excavation work that advanced onto adjacent structures. In order to minimize the effect on adjacent structures, it is important to suppress the displacement of the earth retaining wall. In soft clay ground, ground improvement is often adopted to reduce the displacement of the earth retaining wall. In addition, it is necessary to develop a method that would predict the displacement of the earth retaining wall. In this paper, the measured results of excavation work up to 9.7 m in soft ground are presented. Strut-shaped ground improvement had to be applied since the stiff ground depth was more profound than the excavation depth. It was confirmed that strut-shaped ground improvement reduced the deformation of the earth retaining wall caused by the excavation. Moreover, the beam-spring analytical method was found to be effective for evaluating the behavior of the earth retaining wall by means of ground improvement.

Keywords

strut-shaped ground improvement earth retaining wall measured result 

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References

  1. Japan Society of Materials Science. (2002). Design and construction guidelines for soil cement wall. pp.8–9 (in Japanese).Google Scholar
  2. Kono, T., M. Aoki., and E. Sato. (2002). Behavior of Earth Retaining structures with Wall-type Soil Improvement, Proceedings of the 3rd International Symposium on Geotechnical Aspects of Underground Construction in Soft Ground-IS-Toulouse 2002, pp. 138–143.Google Scholar
  3. Kono, T., and Y. Shigeno 2010, FEM Analyses on Deep Excavations in Soft Clay of Earth Retaining Structure, Proceedings of the 7th International Symposium on Geotechnical Aspects of Underground Construction in Soft Ground –IS-ROMA 2010, pp. 594–602.Google Scholar
  4. Ohoisi H., S. Miyao, T. Kosinuma., and T. Sugimoto. (1988). Observational heaving control procedure of braced excavation in reclamation island at the Tokyo international airport (Part1) – (Part5), pp. 1583–1600 (in Japanese).Google Scholar
  5. Shimizu T., M. Aoki, E. Sato, K. Masumura, K. Okamura., and M. Honma. (1997). Behavior of earth structure with buttress type deep mixing wall, Proc. of 32the Japan National conf. on SMFE, pp.1759–1760 (in Japanese).Google Scholar
  6. Tanaka H. (1994). Behavior of A Braced Excavation in Soft Clay and The Undrained Shear Strength For Passive Earth Pressure, Soils and Foundations, Vol. 34, No. 1, pp.53–64.CrossRefGoogle Scholar
  7. Tanida, S., E. Sato, M. Aoki, M. Maruoka, S. Yamakawa, I. Haba., and H. Sonobe. (2000). Prevention effect on deformation of earth retaining structure with strut typed deep cement mixing wall, Proc. of the 35th Japan National Conf. on SMFE, pp.1717–1720 (in Japanese).Google Scholar
  8. Uchiyama N., Y. Katsura., and M. Kamon. (2000). Case studies of buttress-wall type ground improvement in strutted excavation, Proc. of Geotechnical Aspects of Underground Construction in Soft Ground, pp.599–604 (in Japanese).Google Scholar

Copyright information

© Springer Nature Singapore Pte Ltd. 2020

Authors and Affiliations

  1. 1.Takenaka R&D Ins., Takenaka Corp.ChibaJapan
  2. 2.Takenaka Corp.TokyoJapan
  3. 3.Takenaka Corp.YokohamaJapan

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