Journal of the Korean Geotechnical Society (한국지반공학회논문집)

Korean Geotechnical Society (한국지반공학회)
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Performance Verification and Reliability Test of Load Cell Gauge in Korea

국내 하중계 성능검증과 신뢰성 시험 연구

  • Kim, Yeong-Bae (Civil and Environmental Engrg. at Daejin Univ., Korea Construction Instrument Calibration Center Co. Ltd.) ;
  • Park, Yeong-Bae (Dept. of Smart City Construction Convergence Engrg. at Daejin Univ., Seoul Transportation Corporation) ;
  • Lee, Seong-Won (Dept. of Geotechnical Engrg. Research, Korea Institute of Civil Engineering & Building Technology) ;
  • Lee, Kang-Il (Smart Construction and Environmental Engrg. at Daejin Univ.)
  • 김영배 (대진대 토목환경공학과, 한국건설계측검교정센터(주)) ;
  • 박영배 (대진대 스마트시티 건설융합공학과, 서울교통공사) ;
  • 이성원 (한국건설기술연구원 지반연구본부) ;
  • 이강일 (대진대학교 스마트건설환경공학부)
  • Received : 2023.12.04
  • Accepted : 2023.12.12
  • Published : 2023.12.31
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Abstract

Monitoring the site of an underground construction wall is crucial to confirm the stability of the supports and ground due to excavation. In particular, it is essential to maintain the accuracy of a load cell gauge, which identifies the load of the support transmitted from the excavated ground. However, research on verification methods and regulations that can identify the accuracy of load cell gauges at construction sites is inadequate, which is a problem as load cell gauges are installed without proper performance inspections. In this study, performance tests were conducted by a complete investigation of load cell gauges sold in Korea and comparing them with foreign products to determine defect causes. In addition, the criteria for selecting a load cell gauge were presented, and the results of this study were considered to help select a highly reliable load cell gauge.

흙막이 현장에서 계측은 굴착으로 인한 지보재와 지반의 안정성 확인을 위해 필수적으로 수행해야 하는 중요한 요소이다. 특히, 굴착지반에서 전달되는 버팀대의 하중 전달 추이를 확인하는 하중계는 정확도 유지가 필수적이다. 그러나, 건설 현장에서는 하중계의 정확도를 파악할 수 있는 검증 방법, 규정 등의 연구가 부족하여 제대로 된 성능검사 없이 설치됨에 따라 문제가 되고 있다. 본 연구에서는 국내 현장에 사용되는 하중계를 전수조사하여 성능검사를 실시하고 외국 제품과의 비교를 통해 불량 원인을 파악하였다. 하중계의 성능검증을 통해 성능검사 기준을 제시하였으므로 본 연구 결과는 신뢰성 높은 하중계를 선택하는 데 도움이 될 것으로 판단된다.

Keywords

Acknowledgement

이 연구는 국토교통부(국토교통과학기술진흥원) 2023년 건설기술연구사업의 '도심 지하 교통 인프라 건설 및 운영 기술 고도화 연구'연구단의 지원으로 수행되었으며 이에 깊은 감사를 드립니다.

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