Case Study of Shield Tunnel Construction : Incheon Metro Line 1 Geomdan Extension Phase 1 Project

Byungkwan Park; Chaeman Joo; Dohak Huh; Hyunsup Song; Gwangsu Joo; Dohoon Kim; Minsang Lee

doi:10.7474/TUS.2024.34.3.185

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2024 Vol.34, Issue 3 Next Page

Technical Note

Case Study of Shield Tunnel Construction : Incheon Metro Line 1 Geomdan Extension Phase 1 Project 쉴드TBM 터널 시공 사례 : 인천도시철도1호선 검단연장선 1공구

30 June 2024. pp. 185-195

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Abstract

The Incheon Metro Line 1 Geomdan Extension Phase 1 is the first project in South Korea where both a roadheader and TBM (Tunnel Boring Machine) are being used together. The shield TBM tunnel section is 1,057 m long, and is mostly composed of rock, including the section beneath the Airport Railroad and the Gyeongin Ara Waterway. A 7.8 m earth pressure balance shield TBM was used for tunnel excavation. The average monthly advance rate for both the North and South tracks is 239.1 m, with a maximum monthly advance rate of 334.5 m. This technical article comprehensively evaluates the productivity of the shield TBM, focusing on the TBM excavation performance. Above all, it aims to provide useful reference material for the successful execution of shield TBM tunnel construction.

Keywords

EPB shield TBM

Monthly advance rate

Metro tunnel

Excavation performance

인천도시철도 1호선 검단연장선 1공구 건설공사는 국내 최초로 로드헤더와 TBM 장비가 함께 적용되었다. 쉴드TBM 터널 구간은 1,057 m이며, 대부분 암반으로 구성 되어있으며 공항철도 및 경인아라뱃길 하부 터널 구간 공사를 포함하고 있다. 굴진을 위해 7.8 m 토압식 쉴드TBM 장비가 투입되었으며, 상·하선 구간의 평균 월굴진율은 239.1 m이고, 최대 월굴진율은 334.5 m이다. 본 기술기사에서는 인천도시철도 1호선 검단연장선 1공구 쉴드TBM 터널 굴진 실적을 중심으로 쉴드TBM의 생산성을 종합적으로 평가해 보았으며, 성공적인 쉴드TBM 터널 공사 수행에 있어서 유용한 자료를 제공하고자 한다.

키워드

토압식 쉴드TBM

월굴진율

지하철 터널

굴착 성능

References

Bruland, A., 1999, Hard rock tunnel boring advance rate and cutter wear, Trondheim: Norwegian Institute of Technology.

Hong, J.P. and Ko, T.Y., 2023, Application of Multiple Linear Regression Analysis and Tree-Based Machine Learning Techniques for Cutter Life Index (CLI) Prediction, Tunnel and Underground Space, 33(6), 594-609.

Kang, T.H., Choi, S.W., Lee, C., and Chang, S.H., 2022, A study on the prediction of disc cutter wear using TBM data and machine learning algorithm, Tunnel and Underground Space, 32(6), 502-517.

Kim, D.Y., Farrokh, E., Jung, J.H., Lee, J.W., and Jee, S.H., 2017, Development of a new test method for the prediction of TBM disc cutters life, Journal of Korean Tunnelling and Underground Space Association, 19(3), 475-488.

10.9711/KTAJ.2017.19.3.475

Rostami, J. and Ozdemir, L., 1993, A New Model for Performance Prediction of Hard Rock TBMs. Proceedings of the Rapid Excavation and Tunneling Conference, Boston, 13-17 June 1993, 793-793.

Information

Publisher :Korean Society for Rock Mechanics and Rock Engineering
Publisher(Ko) :한국암반공학회
Journal Title :Tunnel and Underground Space
Journal Title(Ko) :터널과 지하공간
Volume : 34
No :3
Pages :185-195
Received Date : 2024-05-27
Revised Date : 2024-06-10
Accepted Date : 2024-06-11
DOI :https://doi.org/10.7474/TUS.2024.34.3.185

Tunnel and Underground SpaceISSN:1225-1275(Print) 2287-1748(Online)한국암반공학회

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