The Journal of the Convergence on Culture Technology (문화기술의 융합)

The International Promotion Agency of Culture Technology (국제문화기술진흥원)
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Safety Evaluation of Subway Tunnel Structures According to Adjacent Excavation

인접굴착공사에 따른 지하철 터널 구조물 안전성 평가

  • 최정열 (동양대학교 건설공학과) ;
  • 안대희 (동양대학교 건설공학과) ;
  • 정지승 (동양대학교 건설공학과)
  • Received : 2022.09.30
  • Accepted : 2023.12.25
  • Published : 2024.01.31
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Abstract

Currently, in Korea, large-scale, deep excavations are being carried out adjacent to structures due to overcrowding in urban areas. for adjacent excavations in urban areas, it is very important to ensure the safety of earth retaining structures and underground structures. accordingly, an automated measurement system is being introduced to manage the safety of subway tunnel structures. however, the utilization of automated measurement system results is very low. existing evaluation techniques rely only on the maximum value of measured data, which can overestimate abnormal behavior. accordingly, in this study, a vast amount of automated measurement data was analyzed using the Gaussian probability density function, a technique that can quantitatively evaluate. highly reliable results were derived by applying probabilistic statistical analysis methods to a vast amount of data. therefore, in this study, the safety evaluation of subway tunnel structures due to adjacent excavation work was performed using a technique that can process a large amount of data.

현재 우리나라는 도심지 과밀도로 구조물과 인접하여 대규모, 대심도 굴착시공이 이루어지고 있다. 도심지에서의 인접굴착공사는 흙막이 구조물 및 지하구조물의 안전성 확보가 매우 중요하다. 이에 자동화계측 시스템을 도입하여 지하철 터널 구조물에 대한 안전성을 관리하고 있다. 그러나 자동화계측 시스템 결과의 활용도는 매우 낮은 실정이다. 기존 평가기법은 측정된 데이터의 최댓값에만 의존하여, 이상 거동을 과대평가할 수 있는 기법이다. 이에 본 연구에서는 방대한 양의 자동화계측 데이터를 정량적으로 평가할 수 있는 기법인 가우시안 확률밀도함수 분석기법을 이용하여 분석하였다. 방대한 양의 데이터를 확률통계 분석비법을 적용하여 신뢰성 높은 결과를 도출하였다. 따라서 본 연구에서는 방대한 양의 데이터를 처리할 수 있는 기법을 이용하여 인접굴착공사에 따른 지하철 터널 구조물의 안전성 평가를 수행하였다.

Keywords

Acknowledgement

본 논문은 행정안전부 "광섬유 센서 기반 지하구조물 재난관리시스템 개발(과제번호: 20015728)"의 지원을 받아 작성되었음.

References

  1. J.Y. Choi, D.H. Ahn, J.M. Han, J.S. Chung, J.H. Kim, B.C. Joo, "Improvement of SOC Structure Automated Measurement Analysis Method through Probability Analysis of Time History Data", Journal of the Convergence on Culture Technology(JCCT), Vol. 9, No. 1, pp. 679-684, 2023. http://dx.doi.org/10.17703/JCCT.2023.9.1.679 
  2. J.Y. Choi, G.N. Yang, T.J. Kim and J.S. Chung, "Analysis of Ground Subsidence according to Tunnel Passage in Geological Vulnerable Zone", Journal of the Convergence on Culture Technology(JCCT), Vol. 6, No. 3, pp. 393-399, 2020.http://doi.org/10.17703/JCCT.2020.6.3.393 
  3. J.Y. Choi, G.N. Yang, T.J. Kim and J.S. Chung, "Analysis of Changes in Groundwater Level according to Tunnel Passage in Geological Vulnerable Zone", Journal of the Convergence on Culture Technology(JCCT), Vol. 6, No. 3, pp. 369-375, 2020. http://doi.org/10.17703/JCCT.2020.6.3.369 
  4. J.Y. Choi, S.I. Cho and J.S. Chung, "Parameter Study of Track Deformation Analysis by Adjacent Excavation Work on Urban Transit", Journal of the Convergence on Culture Technology(JCCT), Vol. 6, No. 4, pp. 669-675, 2020. https://doi.org/10.17703/JCCT.2020.6.4.669 
  5. H.S. Kim, J.Y. Choi and J.S. Chung, "A Study on Track Deformation Characteristics of Turnout System by Adjacent Excavation Work on Urban Transit", Journal of the Convergence on Culture Technology(JCCT), Vol. 8 No. 5 pp. 477-482, 2022. http://doi.org/10.17703/JCCT.2022.8.5.477 
  6. J.S. Chung, M.H Kim, S.G Lee, H.J Kim and Y.W. Shin, "A Study on the Behaviour of the Station Structure due to Adjacent Construction", Journal of the Korean Geo-Environmental Society, Vol. 17, No. 1, p. 55-64, 2016. https://doi.org/10.14481/jkges.2016.17.11.55 
  7. J.S. Chung, D.R. Park and J.Y. Choi, "Evaluation of Track Irregularity Effect due to Adjacent Excavation on Serviced Railway Line", Journal of the Convergence on Culture Technology(JCCT), Vol. 5, No. 4, pp. 401-406, 2019. http://doi.org/10.17703/JCCT.2018.5.4.401 
  8. J.Y. Choi, H.H. Lee, Y.S. Kang and J.S. Chung, "Evaluation of Track Irregularity due to Adjacent Excavation Work on Serviced Urban Transit", Journal of the Convergence on Culture Technology(JCCT), Vol. 6, No. 2, pp. 481-487, 2020. http://doi.org/10.17703/JCCT.2020.6.2.481 
  9. J.Y. Choi, H.H. Lee, Y.S. Kang and J.S. Chung, "Evaluation of Structural Stability of Tunnel due to Adjacent Excavation on Urban Transit", Journal of the Convergence on Culture Technology(JCCT), Vol. 6, No. 2, pp. 503-508, 2020. http://doi.org/10.17703/JCCT.2020.6.2.503 
  10. J.Y. Choi, D.R. Park, J.S. Chung and S.H. Kim, "Dynamic Wheel-Rail Force-Based Track Irregularity Evaluation for Ballasted Track on Serviced Railway by Adjacent Excavation", Applied Sciences, Vol. 12, No. 1, pp. 1-21, 2022. https://doi.org/10.3390/app12010375 
  11. J.Y. Choi, S.H. Kim, H.H. Lee and J.S. Chung, "Improvement of Automatic Measurement Evaluation System for Subway Structures by Adjacent Excavation", Materials(MDPI), Vol. 14, No. 24, pp. 1-20, 2021. https://doi.org/10.3390/ma14247492 
  12. H.H. Lee, "A Study on Improvement of Automatic Measurement Evaluation System for Subway Structure by Adjacent Excavation", Master thesis, DongYang University, 2021.