Journal of the Korean Geotechnical Society (한국지반공학회논문집)

Korean Geotechnical Society (한국지반공학회)
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Analysis of the Limitations of the Existing Subsidence Prediction Method Based on the Subsidence Measurement Data and Suggestions for Improvement Method Through Weighted Nonlinear Regression Analysis

기존 계측 기반 침하 예측 이론식 한계점 도출 및 가중 비선형 회귀분석을 통한 침하 예측 개선방안 제시

  • Kwak, Tae-Young (Geotechnical Engrg. Research Division, Korea Institute of Construction Technology) ;
  • Hong, Seongho (Dept. of Civil & Environmental Engrg., Seoul National Univ.) ;
  • Lee, Ju-Hyung (Geotechnical Engrg. Research Division, Korea Institute of Construction Technology) ;
  • Woo, Sang-Inn (Dept. of Civil and Environmental Engrg., Incheon National Univ.)
  • 곽태영 (한국건설기술연구원 지반연구본부) ;
  • 홍성호 (서울대학교 건설환경공학부) ;
  • 이주형 (한국건설기술연구원 지반연구본부) ;
  • 우상인 (인천대학교 도시환경공학부 건설환경공학전공)
  • Received : 2022.11.30
  • Accepted : 2022.12.07
  • Published : 2022.12.31
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Abstract

The existing subsidence prediction method based on the measurement data were confirmed in this study through literature research. It was confirmed that the hyperbolic method and the Asaoka method showed high accuracy, while the other prediction methods showed significantly low accuracy. Based on the analysis results, the limitations of the existing prediction equations were derived, and the improvement method of the settlement prediction equations was suggested. In this study, a weighted nonlinear regression analysis method that gives higher weight to the later data was proposed to improve the existing hyperbolic method.

본 연구에서는 시간-침하량 계측 데이터를 기반으로 한 기존 침하 예측 이론식을 확인하였다. 기존 계측 기반 침하 예측 이론식 중 쌍곡선법 및 Asaoka법이 정확도가 높게 나타났으며, 이외 방법은 정확도가 낮은 것으로 확인되었다. 이러한 분석 결과를 토대로 기존 침하 예측 방법의 한계점을 도출하였으며, 이러한 한계점을 보완할 수 있는 개선방안으로써 가중 비선형 회귀분석을 통한 침하 예측 방법을 제시하였다.

Keywords

Acknowledgement

본 연구는 해양수산부의 지원으로 수행되었습니다. 이에 감사의 뜻을 표합니다.

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