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2021 Vol.23, Issue 5 Preview Page

Research Paper

Stability evaluation of existing subway structure by adjacent excavation in urban tunnelling

도심지 터널 근접시공에 의한 기존 지하철 구조물 안정성 평가

Sangmin Han1*
,
Donghuk Lee2
,
Duhee Park3
한 상민1*
,
이 동혁2
,
박 두희3
1Team Manager, Division of Civil Engineering, DL Engineering and Construction
2Ph.D. Student, Dept. of Civil and Environmental Engineering, Hanyang University
3Associate Professor, Dept. of Civil and Environmental Engineering, Hanyang University
1정회원, DL E&C 토목사업본부 부장
2정회원, 한양대학교 건설환경공학과 박사과정
3정회원, 한양대학교 건설환경공학과 부교수
*Corresponding Author
30 September 2021. pp. 339-357
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Abstract

As the construction of trans infrastructure using the underground tunnel have been rapidly increased, various nearby excavation of existed underground facility including subway structure has been occurred in urban tunnelling. The concern and worry relating to the safety and stability of the existed facility by nearby excavation is becoming the key issues in urban tunnelling. In this study, it was conducted for existed the subway station structure at Seoul subway line which was closely located in the new Dongbuk urban metro railway to determine the behavior characteristics of station structure according to adjacent tunnel construction. Also, it was reviewed the evaluation of the safety zone and excavation method for subway structure. And after a review of damage evaluation, track irregularities and structural calculation by using a numerical analysis, stability of the subway structure according to nearby tunnel excavation was evaluated to be secured. This study is expected to be applied as useful reference in advance if you need to review the effects of existed structure according to nearby construction in complex urban tunnelling.

Keywords
Adjacent excavation
Urban tunnelling
Subway structure
Safety evaluation
Stability analysis

도심지에서의 교통인프라 개발이 활발해 지고, 대심도 지하터널을 이용한 도시의 기반시설 확충으로 인하여 기존 운영되거나 설치된 시설물 또는 구조물 상호 간의 근접시공이 많이 이루어지고 있다. 이에 따라 근접시공으로 인한 시설물 또는 구조물에 미치는 안정성 확보여부는 중요한 이슈가 되고 있으며, 관련법에 의하여 지하터널공사에 따른 지하안전영향 평가를 반드시 수행하여야 한다. 본 연구에서는 근접시공으로 인한 정거장구조물 의 거동특성을 파악하기 위해 동북선도시철도 터널이 계획된 노선 상부의 지하철 6호선 고려대역 정거장 구조물을 대상으로 신설터널에 의한 기존 구조물에 미치는 안전영향평가를 수행하였다. 이를 위하여 정거장구조물의 안전영역 평가 및 굴착방법에 대한 검토와 3차원 수치해석을 통한 상세검토를 수행하였다. 구조물 손상도 평가, 궤도 틀림 및 기존 구조물과 건물 안정성 평가 결과 근접터널공사에 따른 기존 정거장 구조물의 안정성은 확보되는 것으로 평가되었다. 본 연구는 도심지 터널공사에서 근접시공시 기존의 인접구조물에 미치는 영향을 사전에 검토하는 경우 기본적인 기초 참고 자료로 활용될 수 있을 것으로 기대된다.

키워드
근접시공
터널
정거장구조물
안전영역
손상도 평가
References
1
Attewell, P.B. (1977), Ground movements caused by tunnelling in soil, Proceedings of the International Conference on Large Movements and Structures, London, pp. 812-948.
2
Attewell, P.B., Yeates, J., Selby, A.R. (1986), Soil movements induced by tunnelling and their effects on pipelines and structures, Blackie, Glasgow, pp. 56-79.
3
Bjerrum, L. (1963), Allowable settlement of structures, Proceedings of the 3rd European Conference on Soil Mechanics and Foundation Engineering, Vol. 2, Weisbaden, Germany, pp. 135-137.
4
Boscardin, M.D., Cording, E.J. (1989), Building response to excavation-induced settlement, Journal of Geotechnical Engineering Division, ASCE, Vol. 115, No. GT1, pp. 1-21. 10.1061/(ASCE)0733-9410(1989)115:1(1)
5
Burland, J.B. (1997), Assessment of risk of damage to buildings due to tunnelling and excavation, Earthquake Geotechnical Engineering, Ishihara (ed.), Balkema, Rotterdam, pp. 1189-1201.
6
Burland, J.B., Wroth, C.P. (1974), Settlement of buildings and associated damage, Proceedings of a Conference on Settlement of Structures, Cambridge, pp. 611-654.
7
Cording, E.J., Hansmire, W.H. (1975), Displacements around soft ground tunnels, Proceedings of the 5th PanAmerican Congress on Soil Mechanics and Foundation Engineering, Buenos Aires, Session IV, pp. 571-632.
8
KICT (2019), A study on smart construction and maintenance of deep underground spaces to improve urban performance, Korea Institute of Construction and Technology, pp. 28-130.
9
Kim, Y.G. (2021), The impact and safety evaluation of tunnel construction in Uran Tunnelling, Magazine of Korean Tunnelling and Underground Space Association, Vol. 22, No. 3, pp.63-78.
10
Lee, S.R., Woo, S.W., Choi, C.S. (2010), Incheon metropolitan urban railroad line 2 (Construction section 206) project tunnel design case, Korean Society of Civil Engineers Magazine, Vol. 58, No. 7, pp. 33-40.
11
Lee, Y.J. (2004), Tunnelling adjacent to a row of loaded piles, Ph.D. Thesis, University College London, pp. 76-88.
12
MOLIT (2020), Standard manual for underground safety effect evaluation, Ministry of Land, Infrastructure and Transport, pp. 1-222.
13
Seoul Metro (2001), Practical manual for adjacent construction in urban metro, pp. 1-222.
14
Seoul Metro (2008), Track maintenance regulations, Chapter 2, Track maintenance criteria [Attachment 5].
15
Shin, S.Y., Lee, J.S., Park, Y.G. (2009), A study on the stability of the existing subway structure due to nearby construction of new railway line, Conference of the Korean Society for Railway, Korean Society for Railway, pp. 2148-2165.
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 : 23
  • No :5
  • Pages :339-357
  • Received Date : 2021-09-01
  • Revised Date : 2021-09-17
  • Accepted Date : 2021-09-17
  • DOI :https://doi.org/10.9711/KTAJ.2021.23.5.339
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