Proceedings of the Korean Geotechical Society Conference (한국지반공학회:학술대회논문집)
- 2009.09a
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- Pages.1079-1083
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- 2009
Pullout Resistance Characteristics of the Wedge-shaped Soil Nail
쐐기형 쏘일 네일의 인발 거동 특성
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Kim, Bum-Joo
(Dept. of Civil & Environmental System Engineering, Dongguk University)
;
- Lee, Yong-Jun (R&D Center, POSCO Engineering & Construction, Co., Ltd.) ;
- Yoon, Yong-Soo (Jang Pyoung Construction Co., Ltd.) ;
- Chung, Min-Kyu (Jang Pyoung Construction Co., Ltd.) ;
- Yoon, Ji-Nam (POSCO Engineering & Construction, Co., Ltd.)
- Published : 2009.09.25
Abstract
In this study, the pullout resistance characteristic of a wedge-shaped soil nail, made by attaching small steel sticks to the tip of a nail in a wedge shape, was investigated. It was developed to improve the overall pullout resistance capacity of the existing soil nail system, composed of nail and grout, by making the wedge provide additional pullout resistance. In order to evaluate the pullout resistance of the wedge shape-soil nail, field pullout tests were conducted, and the results were compared with those for the existing soil nail without the wedge. The field test results showed that the pullout resistance capacity of the wedge-shaped soil nail was 50% larger than that of the existing soil nail without the wedge.