Proceedings of the Korean Geotechical Society Conference (한국지반공학회:학술대회논문집)

Korean Geotechnical Society (한국지반공학회)
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Dynamic Analysis of an Immersed Tunnel using an Effective Stress Model

유효응력모델을 이용한 침매터널의 동적거동 해석

  • Park, Sung-Sik (Division of Civil, Environmental & Urban Engineering, Wonkwang University) ;
  • Moon, Hong-Duk (Dept. of Civil Engineering, Jinju National University)
  • 박성식 (원광대학교 토목환경도시공학부) ;
  • 문홍득 (진주산업대학교 토목공학과)
  • Published : 2008.03.28
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Abstract

The George Massey immersed tunnel passes the Fraser River near Vancouver, Western Canada. In this paper, dynamic analysis of the tunnel on sandy soils was performed using an effective stress constitutive model called UBCSAND. This model is able to calculate pore pressure rise and resulting tunnel deformation due to cyclic loading. Centrifuge tests conducted at RPI are used to verify the model performance. Centrifuge tests consist of 3 models: Model 1 is designed for an original ground condition, Model 2 for a ground improvement by compaction method, Model 3 for a ground improvement by gravel drainage. The results of centrifuge Model 1 are presented and compared with predictions of UBCSAND model. This model well captured the results of centrifuge test and therefore can be used to predict dynamic behavior of similar tunnels or underground structures on sandy soils.

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