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

Korean Geotechnical Society (한국지반공학회)
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Prediction and validation of the stability for the excavated ground using numerical analysis

수치해석을 이용한 굴착지반의 안정성 검토와 예측

  • Song, Joon-Hwa (Dept. of Civil & Environmental Engineering, Dong-Guk University) ;
  • Jang, Yeon-Soo (Dept. of Civil & Environmental Engineering, Dong-Guk University) ;
  • Kwon, Oh-Kwoo (908 Division, Seoul Subway, Hyundai Construction Co.)
  • 송준화 (동국대학교 토목환경공학과) ;
  • 장연수 (동국대학교 토목공학과) ;
  • 권오규 (현대건설 서울지하철 908공구)
  • Published : 2005.03.25
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Abstract

Horizontal displacement of slurry wall with strut is analyzed using 2-D numerical stress-displacement program, FLAC. Validation of the program results are performed using the pre- and ongoing excavation sections and further displacement is predicted in the stage of strut removal. The result show that the calculated displacement was very close to the measured displacement when 40% in-situ strut preloading is applied to the strut loading of the program considering the horizontal spacing of struts in the field. It was found that construction efficiency can be improved by partially removing the struts before putting slabs in the stage of subway structure construction.

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