Journal of Korean Society of Disaster and Security (한국방재안전학회논문집)

Korean Society of Disaster & Security (한국방재안전학회)
권호 표지
DOI QR코드

DOI QR Code

A Study on the Development of Special Materials for Liquidity Improvement Refill Applicable to Poor Ground Conditions in Low Temperature Environment

저온환경 불량한 지반조건에 적용 가능한 유동성 개량 되메움을 위한 특수재료 개발에 관한 연구

  • Jin Chun Kim (Han Kook Geotechnology Inc.) ;
  • Byung Sun Yoo (Han Kook Geotechnology Inc.) ;
  • Hee Jin Kang (Han Kook Geotechnology Inc.) ;
  • Seok Hyun Kim (Department of Civil and Environmental Engineering, Myongji University)
  • 김진춘 ((주)한국지오텍) ;
  • 유병선 ((주)한국지오텍) ;
  • 강희진 ((주)한국지오텍) ;
  • 김석현 (명지대학교 토목환경공학과)
  • Received : 2024.09.13
  • Accepted : 2024.09.23
  • Published : 2024.09.30
Download PDF
⟨ Previous Next ⟩

Abstract

The purpose of this study is to develop a fluidity-improved refilling material that satisfies smooth construction and long-term durability in a low-temperature environment using special materials and field soil as a refilling material to develop technology for high-speed installation of long-term non-traditional pipelines on poor ground containing a large amount of organic soil in a low-temperature environment. To this end, a special cement material was developed, and an indoor test was conducted to determine the construction performance and durability of the fluidity improved refilling material mixed with the developed special material and field soil to meet the quality standards for field construction. The construction quality standard items of fluidity improved refill materials were set to meet the CLSM (ACI 229R-13) standard suggested by the American ACI (America Concrete Institute). In addition, in order to understand the applicability in a low-temperature environment, the test was performed with the same items at low temperature and compared with the indoor test results at room temperature.

본 연구에서는 저온환경의 유기질토가 다량 함유된 불량한 지반에서 장기적으로 안정적인 비전통유 파이프라인 고속설치 시공을 위한 기술을 개발하기 위하여 되메움 재료로써 특수재료와 현장토를 사용한 저온 환경에서 원활한 시공성과 장기 내구성을 만족하는 유동성 개량 되메움재를 개발하는 것이 목적이다. 이를 위하여 시멘트계 특수재료를 개발하였으며 개발된 특수재료와 현장토를 혼합한 유동성 개량 되메움재의 현장시공 품질 기준에 만족하기 위한 시공성과 내구성을 파악하기 위한 실내시험을 수행하였다. 유동성 개량 되메움재의 시공품질기준 항목은 미국 ACI(America Concrete Institute)에서 제시한 CLSM(ACI 229R-13) 기준을 만족하는 것으로 목표를 설정하였다. 또한, 저온환경에서의 적용성을 파악하기 위하여 저온에서 동일한 항목으로 시험하고 상온의 실내시험결과와 비교 평가 하였다.

Keywords

Acknowledgement

이 논문은 2024년도 국토교통부의 재원으로 국토교통과학기술진흥원의 지원을 받아 수행된 연구임(RS-2022-00143644, 오일 생산플랜트의 패키지화 설계 및 통합실증 기술개발).

References

  1. American Concrete Institute. (2013). Report on Controlled Low-Strength Materials. Reported by ACI Committee 229. ACI 229R-13. Farmington Hills, MI: ACI. 
  2. Andersland, O. B. and B. Ladanyi. (2004). Frozen Ground Engineering (2nd Edition). ASCE Press and John Wiley & Sons, Inc. 179-192. 
  3. Cho, Sung Ro. (2003). Behavior of Flexible Plastic Pipes with Flowable Backfill in Trench Conditions. Ph. D. Thesis. Civil and Environmental Engineering, University of Houston. 
  4. Green, B. H. (1999). Development of Soil-Based Controlled Low-Strength Materials. U.S. Army Corps of Engineers. Technical Report INP-SL-2. 
  5. Han, Woo Jin, Jong-Sub Lee, and Yong-Hoon Byun. (2017). Estimation of Flowability and Strength in Controlled Low Strength Material Using Multiple Regression Analysis. Journal of the Korean Geo-Environmental Society. 18(12): 65-75. 
  6. Kim, Woo Sik. (2014). State of Design and Construction Technology of Far-Paper Piping. Journal of the KSME. 54(1): 53-57. 
  7. Kim, Young Jin, Seung Suh Hong, and Hyun Min Kim. (2001). [Korea Institute of Construction Technology] A Long-Term Study on the Freezing Depth of the Ground in Winter. Related Materials of the National Library of Korea. 2001 (2): 1-121. 
  8. Kim, Young Seok. (2021). Construction Technology for the Advancement of Polar Regions and the Development of Energy and Resources. Magazine of the Korean Geosynthetics Society. 20(4): 12-22. 
  9. Park, Han il and Kyung Sik Choi. (1994). A study on the design and installation of Arctic pipelines. Bulletin of the Research Institute for Marine Science and Technology, Korea Maritime University. 3: 45-67.