한국섬유공학회지 (Textile Science and Engineering)
- 제35권10호
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- Pages.641-648
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- 1998
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- 1225-1089(pISSN)
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- 2288-6419(eISSN)
보강토 옹벽 공사용 지오그리드의 제조 및 물성(I) -역학적 및 인발 특성-
Manufacturing and Properties of Geogrids for Reinforcement Soil Retaining Wall Construction(I) - Mechanical and Pullout Properties-
-
전한용
(전남대학교 섬유공학과)
;
- 김정효 (전남대학교 섬유공학과) ;
- 김홍택 (홍익대학교 토목공학과) ;
- 이은수 (한국건설구조안전연구원) ;
- 김영윤 (보강기술 주식회사) ;
- 이형규 (서일대학교 토목과)
-
Jeon, Han Yong
(Department of Textile Engineering, Chonnam National University)
;
- Kim, Jeong Hyo (Department of Textile Engineering, Chonnam National University) ;
- Kim, Hong Taik (Department of Civil Engineering, Hongik University) ;
- Lee, Eun Soo (Korea Institute of Construction and Structural Safety) ;
- Kim, Young Yoon (E & S Engineering Co. Ltd.) ;
- Lee, Hyung Kyu (Department of Civil Engineering, Seoil College)
- 투고 : 1998.06.11
- 발행 : 1998.10.31
초록
Geogrid for reinforcement soil retaining wall was constructed with a raw grid woven from 1,000 denier polyester yarns. Low density polyethylene (LDPE) resin dissolved in ethylbenzene was coated to improve the junction strength between warp and weft of raw grid. The weight increase on coating the raw geogrid was about 30~60%. Tensile, junction strength and pullout resistance of geogrids in installation within soil were estimated to verify the reinforcement properties. Tensile strength per unit rib of LDPE coated geogrid was about 30% higher than that of raw grid. For each geogrid, pullout force increased with higher vertical stress, and Grid-M (PVC coated geogrid) had the highest pullout force at constant vertical stress. The induced displacements decreased with higher vertical stress, and Grid-E (LDPE coated geogrid) has the lowest difference range of induced displacement at constant vertical stress.
키워드