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A Study on Disaster Influencing Factors and Importance for Safety Management in NATM Tunnel Drilling

NATM 터널 굴진 시 안전관리를 위한 재해영향요인 및 중요도에 관한 연구

  • Received : 2022.09.28
  • Accepted : 2022.11.01
  • Published : 2022.11.30

Abstract

In the NATM tunnel construction method for urban subway and underpass construction, various causes of disaster exist. In this study, in order to analyze the importance of disaster influencing factors during NATM tunnel excavation, the possible risk factors were analyzed through prior research such as drilling, charging and blasting, It was divided into the work items of wrinkle treatment, pumice cleanup, and support materials. Next, the final 21 detailed measurement indicators were selected through the FGI survey of related experts, and AHP (Analytic Hierarchy Process) analysis were conducted. As a result, it was found that the workers involved in the tunnel construction were the most influential disaster influencing factor.

도심지 지하철, 지하차도 건설을 위한 NATM 터널공법에서는 다양한 재해원인들이 존재한다. 본 연구에서는NATM 터널 굴진 시 주요한 재해영향요인을 도출하기 위해 선행연구를 통해 발생 가능한 위험요인을 천공작업, 장약 및 발파, 버럭처리, 부석정리 그리고 지보재 작업 항목으로 구분하였다. 다음으로 전문가 인터뷰 조사를 통하여 21개의 세부 측정지표로 구체화하였고 AHP(Analytic Hierarchy Process) 설문 및 분석을 진행하였다. 분석 결과, 터널공사 관계자들은 부석정리 작업을 가장 영향이 큰 재해영향요인으로 선택하였으며 이를 우선관리 요소로 설정하는 것이 필요하다는 결론을 도출하였다.

Keywords

References

  1. O. Cretu, B. Robert, B. Terry, "Risk management for design and construction", RSMeans, p. 1-288, 2011.
  2. Chung, H. Y A causal network-based risk matrix model applicable to tunnels, Ph.D. Thesis. Ph.D. Thesis. Korea University, Seoul, South Korea., 2019
  3. Ministry of Employment and Labor, "Industrial accident analysis", 2021.
  4. J. H. Seong, J. U. Youn, Identification and importance analysis of hazards affecting the stability of TBM tunnelling works, Journal of Korean Tunnelling and Underground Space Association, Vol. 19, No. 1, pp. 973-983, November 2017. https://doi.org/10.9711/KTAJ.2017.19.6.973
  5. Construction Safety Management Integrated Information. https://www.csi.go.kr/