사질토 성토체의 장기 침하거동 분석에 따른 해군 부두건설 기준 연구

임철민¹^{, *} ; 임슬기²

1해군소령/국방부 국방시설본부 해군/해병대사업관리과 대형사업/특수시설담당
2해군소령/해군 작전사령부 소양함 기관장

Study on Naval Harbor Standards Based on Long-term Creep Behavior Analysis of Sandy Soil Embankments

Chul-Min Lim¹^{, *} ; Seul-Ki Lim²

1LCDR, ROK Navy/Business Manager, Navy/Marine Corps Management Division, Defense Installations Agency
2LCDR/Chief Engineer Officer, AOE Soyang, ROK Navy

Correspondence to: ^*Chul-Min Lim Navy/Marine Corps Management Division, Defense Installations Agency 54-99, Duteopbawi-ro, Yongsan-gu, Seoul, 04353, Republic of Korea Tel: +82-55-907-6964 Fax: +82-55-907-6964 E-mail: chulminn@snu.ac.kr

초록

성토체는 침하관리가 중요한 부분을 차지하며, 목표한도 이내의 허용잔류침하량을 기준으로 관리하는 경우 장기 크리프 거동으로 인한 침하량 평가가 중요하다. 이에 따라 본 연구에서는 크리프 거동에 대한 영향인자를 성토 성토재료의 세립분 함유량, 성토체의 다짐도 및 전단응력비 (q/p′)로 선정하고 각 영향인자에 따른 크리프 거동을 분석하여 산출한 크리프 계수를 바탕으로 해군 항만 건설부지에 대한 연구자료를 활용하여 허용잔류 침하량을 유지하기 위해 어떠한 기준을 적용해야 하는지 분석해보았다.

Abstract

Settlement management is important to the embankment and long-term creep settlement is more important in the structure. In this study, the effect of the fine contents, the relative compaction and the stress ratio(q/p′) on the creep behavior of the soils was experimentally evaluated based on triaxial tests. The creep coefficient was determined through the vertical strain–log(time) relationship. Using the data of the harbor construction site conducted by the Navy, we analyzed what criteria should be formed in order to maintain the allowable residual settlement.

Keywords:

Harbor Standard, Creep Behavior, Embankment, Fine Contents, Compaction

키워드:

항만 기준, 크리프 거동, 성토체, 세립분, 다짐도

Acknowledgments

이 논문은 2022년도 한국해군과학기술학회 동계학술대회 발표 논문임.

References

Republic of Korea Navy (2019), “Harbor Expansion Basic Plan Service Report” Republic of Korea Navy, Gyeryong
Japan Ministry of Land, Infrastructure and Transport (2007), “Design Standard for Japanese Railway Structures, etc. (Soil Structures),” Japan Ministry of Land
Charles, J. A. (2008), “The engineering behaviour of fill materials”, Geotechnique, Vol. 58(7), pp. 541-570. [https://doi.org/10.1680/geot.2008.58.7.541]
Park (2015), “Deformation and stiffness characteristics during creep of weathered residual soil in Korea,” Ph.D. dissertation, Dept. of Civil & Environ. Eng, Seoul National Univ.
Lim (2021), “Experimental study of long- term creep behavior of sandy soil in embankment” Master. dissertation, Dept. of Civil & Environ. Eng, Seoul National Univ.