All Issue

2017 Vol.19, Issue 3 Preview Page
Determination of priorities for management to reduce collapse accident of open excavation and road sink in urban areas

도심지 개착식 굴착공사 붕괴사고 및 도로함몰 저감을 위한 우선 관리 요소 결정

Joo-Hyun Seong1
,
Min-Hyung Jung2*
성 주현1
,
정 민형2*
1Korea Infrastructure Safety & Technology Corporation, Research Institute for Infrastructure Performance, Principal Researcher
2Korea Infrastructure Safety & Technology Corporation, Research Institute for Infrastructure Performance, Senior Researcher
1한국시설안전공단 시설성능연구소, 책임연구원
2한국시설안전공단 시설성능연구소, 선임연구원
*교신저자. *Corresponding Author. 
31 May 2017. pp. 489-501
PDF XML Citation
Abstract

The collapse accidents during a open ground excavation in urban areas not only lead to human injuries and material damages in the construction site, but also lead to road sinks and damages to the adjacent facilities due to settlement of ground around the construction site. Therefore, during a open ground excavation in the urban areas, it is necessary to thoroughly prepare for prevention of collapse accidents, and consider whole construction stage such as planning, design and construction. In this study, the priorities to be managed mainly were obtained in order to prevent collapse accidents during a open ground excavation. After analyzing results from past accidents cases for open ground excavations, priorities were evaluated regarding collapse-inducing elements using the Delphi technique which is a decision-making method by consensus among experts. As a result, insufficient groundwater treatment, bad geotechnical investigation and instability on construction, etc. were obtained as priorities for prevention of collapse accidents.

Keywords
Open ground excavation
Accident cases
Delphi survey
Priorities

도심지 개착식 굴착공사 중 발생하는 붕괴사고는 공사장 내에서의 인명 및 물질적 피해 를 불러일으킬 뿐만 아니라, 공사장 주변의 지반침하로 인한 도로함몰 및 시설물 피해를 유발한다. 따라서, 도심지에서 개착식 굴착공사를 수행함에 있어서, 계획, 설계 및 시공의건설 전체 단계에서 굴착공사 붕괴 방지를 위한 철저한 대비가 필요하다. 본 연구에서는 이와 같은 개착식 굴착공사 중 붕괴사고 예방을 위해, 중점적으로 관리되어야 할 우선 요소 결정 연구를 수행하였다. 먼저, 과거 흙막이 굴착공사의 사 고사례 조사결과를 분석하고, 전문가 합의에 의한 의사결정 방법인 델파이 기법을 이용하여 붕괴 유발 요소에 대한 중요 도를 산정하였다. 그 결과, 지하수 처리, 지반조사의 부실, 시공상의 불안정 등이 흙막이 공사 붕괴 예방을 위한 중점 관리 요소로 도출되었다.

키워드
개착식 굴착공사
사고 사례
델파이 기법
우선 요소
References
1
An, J.W., Kim, H.K. (2016), “Developments of performance-based assessment technique for existing tunnels”, Journal of Korean Tunnelling and Underground Space Association, Vol. 18, No. 6, pp. 525-533.
2
Anderson, E.T. (1997), “Important distance education practices: A delphi study of administrators and coordinators of distance education programs in Higher Education”, Ph.D. Thesis, University of Idaho.
3
Bae, H.J. (2003), “A study on the priority of virtual reality game elements using delphi and AHP : Focused on the FPS games”, Master’s Thesis, Incheon National University.
4
Clough, G.W., O’Rourkem, T. D. (1990) Construction induced movements of insitu walls. Design and performance of earth retaining structures, Geotechnical Special Publication, No. 25, ASCE.
5
Cowland, J.W., Thorley, C.B.B. (1984), “Ground and building settlement associated with adjacent slurry trench excavation”, Proceedings of Third International Conference on Ground Movements and Structures, Cardiff, pp. 723-738.
6
Jeong, J.C., Lee, J.B., Lee, H.M., Gong, H.R. (2012), “The development and application of evaluation index measuring the activation degree of invention education in Korea”, The Korean Association of Practical Arts Education, Vol. 25, No. 2, pp. 129-150.
7
Joo, T.S. (1998), “Analysis of case study for collapse of excavation in urban areas”, Information of Construction Technology, Vol. 21, pp. 62-77.
8
Lawshe, C.H. (1975), “A quantitative approach to content validity”, Personnel Psychology, Vol. 28, pp. 563-575.
9
Lee, M.K. (2007), The behavior of adjacent grounds during underground excavation with diaphragm walls, Ph.D. Thesis, Chung-Ang University.
10
Lee, J.J., Jung, K.S., Lee, C.N. (2009), “Consideration of failure type on the ground excavation”, International Symposium on Urban Geotechnics, September, Korean Geotechnical Society, Incheon, pp. 660-670.
11
Lee, J.S. (2001), Delphi method, Kyoyookbook.
12
Ministry of Land, Infrastructure and Transport (2015), Manual of safety management for ground settlement (sink).
13
Rho, S.Y. (2006), “Delphi technique : Prediction of the future with professional insights”, Planning and Policy, KRIHS, September, pp. 63-62.
14
Seong, J.H., Jung, S.H., Shin, J.Y. (2011), “A study for safety management on ground excavation by analysis of accident events”, Journal of the Korea Institute for Structural Maintenance Inspection, Vol. 15, No. 6, pp. 175-183.
15
Yang, G.S., Kim M.M. (1997), “Analysis of perimetrical ground settlement behavior for deep excavations in urban areas”, Vol. 13, No. 2, pp. 101-124.
Information
  • Publisher :Korean Tunneling and Underground Space Association
  • Publisher(Ko) :한국터널지하공간학회
  • Journal Title :Journal of Korean Tunnelling and Underground Space Association
  • Journal Title(Ko) :한국터널지하공간학회 논문집
  • Volume : 19
  • No :3
  • Pages :489-501
  • Received Date : 2017-04-14
  • Revised Date : 2017-05-02
  • Accepted Date : 2017-05-16
  • DOI :https://doi.org/10.9711/KTAJ.2017.19.3.489
Journal Informaiton Journal of Korean Tunnelling and Underground Space Association Journal of Korean Tunnelling and Underground Space Association
Online Submission & Review System
  • NRF
  • KOFST
  • KISTI Current Status
  • KISTI Cited-by
  • crosscheck
  • orcid
  • open access
  • ccl
Journal Informaiton Journal Informaiton - close