Proceedings of the Korean Geotechical Society Conference (한국지반공학회:학술대회논문집)
- 2010.09a
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- Pages.1081-1086
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- 2010
A Case of Design and Field Construction on the Removable Post-tensioned Soil Nailing System
제거식 포스트텐션 쏘일네일의 설계 및 시공사례
- Park, Si-Sam (Technical Division, GS E&C Corp.) ;
- Park, Joo-Suck (DAEJAK E&C Co. Ltd.) ;
- Kim, Eung-Soo (KD Engineering Co. Ltd.) ;
- Yoon, Myung-June (Dept. of Civil Engineering, Hong-Ik Univ.) ;
- Park, Ji-Woong (Dept. of Civil Engineering, Hong-Ik Univ.) ;
- Kim, Hong-Taek (Dept. of Civil Engineering, Hong-Ik Univ.)
- 박시삼 (GS건설 기술본부) ;
- 박주석 (대작이앤씨(주)) ;
- 김응수 (케이디 엔지니어링) ;
- 윤명준 (홍익대학교 토목공학과) ;
- 박지웅 (홍익대학교 토목공학과) ;
- 김홍택 (홍익대학교 토목공학과)
- Published : 2010.09.09
Abstract
The general soil nailing support system may result in excessive deformations particularly in an excavation zone of the existing weak subsoils. Pretensioning the soil nails then, could play important roles to reduce deformations mainly in part of the nailed-soil excavation system as well as to improve local stability. Morever, soil nails are installed underneath roads, underground structures, and subway structures, thereby resulting in difficulties in nail remval after completion of temporary soil nailed walls. Hence, to date, in order to solve the technical difficulties and avoid legal issues related to the construction of soil nails underneath the surrounding areas and structures, the removable soil nailing system has been developed and used. But, Therefore, a new soil nailing technique called Removable Post-tensioned Soil Nailing(RPTN) system has been developed in the current study. In this study, an investigation of the RPTN system has been conducted by carrying out field measurement. Hence, the RPTN system can reduce ground displacement and enhance stability of the soil nailed walls.