한국지반공학회:학술대회논문집 (Proceedings of the Korean Geotechical Society Conference)
- 한국지반공학회 2006년도 춘계 학술발표회 논문집
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- Pages.1008-1013
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- 2006
지반개량에 의한 Anchor 정착부 개선효과 사례연구
A Case Study on the Effect of Soil Improvement on Anchor Bond Zone
- Kim, Tae-Seob (T.A. Team, Samsung Corp.) ;
- Song, Sang-Ho (Yongsan Park Tower Construction Site, Samsung Corp.) ;
- Cho, Kyu-Wan (Housing Constrution Team Civil Part, Samsung Corp.) ;
- Lee, Jae-Dong (Yongsan Park Tower Construction Site, Samsung Corp.)
- 발행 : 2006.03.24
초록
Ground anchor method is widely used in the large scale deep excavation of urban area to support a retained wall. Excavation using the ground anchor as a supporting system near a building have many difficulties due to the limitation of construction space. This method can not be applied to the site with the insufficient space from the retained wall to the boundary line. In this case, soil improvement at the anchor bond zone can be used to secure the frictional resistance of ground anchor within the boundary. Through this method, the bond length of anchor can be shortened considerably. This paper deals with the case study on the ground excavation adjacent to a building. The object field is Yongsan Park Tower Construction Site. In this site, the enlarged anchor with soil improvement was applied to solve the problem due to the limitation of construction space. According to the results of field test and monitoring, the anchor with soil improvement is very effective to secure the frictional resistance at the anchor bond zone.