Journal of the Korean Society of Industry Convergence (한국산업융합학회 논문집)

The Korean Society of Industry Convergence (한국산업융합학회)
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Displacements Behavior of Retaining Walls by Shaking Table Test

진동대 실험을 통한 흙막이 벽체의 변위 거동 특성

  • Received : 2018.10.05
  • Accepted : 2018.12.04
  • Published : 2018.12.31
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Abstract

In this study, experiments were carried out after fabricating and installing a physical model considering the size of the prototype. In the model test, the number of struts placed on the wall and the applied acceleration were selected as test variables. Two different types of waves, long-period and short-period, were applied with magnitudes of 0.05g, 0.1g, 0.2g, and 0.3g. Measured are displacements at specified points. As a result of the analysis, displacement exceeding the allowable displacement of the wall occurred at an acceleration greater than 0.05g to 0.1g depending on the seismic waves applied. Therefore guidelines have to be established through further studies for aseismic design of earth retaining walls.

Keywords

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Fig. 2 Reinforcement installed cross section and used reinforcement

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Fig. 1 Wall and H-pile material

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Fig. 3 Location of the instrument

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Fig. 4 Preparation of a model tests

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Fig. 5 Seismic waves applied to tests

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Fig. 6 Result of displacement with long-period wave

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Fig. 7 Result of displacement with short-period wave

Table 1. Acrylic material

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Table 2. Result of sieve analysis

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Table 3. Result of relative density

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Table 4. Application of similarity law to model test

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Table 5. Result of displacement with long-period wave

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Table 6. Result of displacement with short-period wave

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References

  1. Yoon, W. S. Yang. C. K. Ju, W. Y. and Park, Y. J., A Study on the Behavior Characteristics of the Earth Retaining Wall Using Seismic Analysis, 2015 Spring Geosynthetics Conference, Vol. 2015 No. 4, pp. 107-110, 2015. (in Korean with English abstract)
  2. Yoon, W. S. Yang. C. K. Park, Y. J. and Chae, Y. S., A Study on the Characteristics of Seismic Earth Retaining Structures Using Model Test, 2016 Spring Geosynthetics Conference, Vol. 2016, No. 4, pp. 71-72, 2016. (in Korean with English abstract)
  3. Hwang, B. K. Lee. S. J. and Kim, Y. H., A Study of Dynamic Earth Pressure Effects on Underground Wall, KSCE Conference, Vol. 2006, No. 10,, pp. 2775-2778, 2006. (in Korean with English abstract)