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ISSN : 2233-8292

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Vol.18 No.3
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쉴드 TBM 터널 굴착시 지표침하에 관한 신뢰성해석

Reliability analysis of surface settlement during shield TBM tunneling

(사)한국터널지하공간학회 / (사)한국터널지하공간학회, (P)2233-8292; (E)2287-4747
2016, v.18 no.3, pp.305-318
https://doi.org/10.9711/KTAJ.2016.18.3.305
한명식 (㈜태조엔지니어링)
조국환 (서울과학기술대학교)
한명식, & 조국환. (2016). 쉴드 TBM 터널 굴착시 지표침하에 관한 신뢰성해석. (사)한국터널지하공간학회, 18(3), 305-318, https://doi.org/10.9711/KTAJ.2016.18.3.305
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초록

본 연구에서는 ○○국제공항 제2여객터미널 연결 철도 건설공사 기본설계 중 쉴드 TBM 터널 굴착 시 Gap parameter와 관련된 지반물성치의 불확실성을 평가하고, 지표침하에 대한 신뢰성해석을 수행함으로써 쉴드 TBM 설계의 적절성을 평가하고자 한다. 또한 Gap parameter에 이용되는 설계정수의 신뢰도지수 및 파괴확률에 대한 민감도를 분석함으로써, 지표침하에 큰 영향을 미치는 설계정수를 평가함으로써 최적의 설계를 수행하는데 기초 자료를 제공하고자 하였다.

keywords
Surface settlement, Reliability analysis, Shield TBM, Probability of failure, 지표침하, 신뢰성 해석, 쉴드 TBM, 파괴확률

Abstract

This study is to evaluate the uncertainty of the soil parameters associated with the Gap parameter during shield TBM tunnel excavation of ○○ International Airport Terminal 2 connecting railway construction basic design. And This study is to evaluate the adequacy of the shield TBM design by performing a reliability analysis of the Surface settlement. In addition, By analyzing the reliability indices of the design constants and Sensitivity probability of failure to be used in designing an integer parameter Gap, and By evaluating the design constants of a great influence on the surface subsidence, it was to provide a basis for carrying out an optimum design.

keywords
Surface settlement, Reliability analysis, Shield TBM, Probability of failure, 지표침하, 신뢰성 해석, 쉴드 TBM, 파괴확률

참고문헌

1.

1. Bae G.J., Chung, H.S., Lee, G.P., (2003), “Effect of ground settlement control on cut-off wall in shield tunnelling in soft clay”, Journal of the Korean Society of Civil Engineers , Vol. 23, No. 5C, pp. 335-344.

2.

2. Cording, E.J., Hansmire, W.H. (1975), “Displacements around soft ground tunnels”, General Report. Session IV, Tunnel in Soil, Proceedings of the 5th Pan-American Congress on Soil Mechanics and Foundation Engineering, Buenos Aires, Vol. 4 p. 63.

3.

3. Lee, K.M., Rowe, R.K., Lo, K.Y. (1992), “Subsidence owing to tunnelling. I. Estimating the gap parameter”, Canadian Geotechnical Journal 29, pp. 929-940.

4.

4. Loganathan, N., Poulos, H.G. (1998), “Analytical predictions of tunnelling induced ground movements in clays.”, Journal of Geotechnical and Geoenvironmental Engineering, ASCE, Sept., 1998, Vol. 124, No. 9. pp. 846-856.

5.

5. Loganathan, N. (2011), “An innovative method for assessing tunnelling-induced risk to adjacent structures”, PB 2009 William Barclay Parsons Fellowship, Monograph 25, Parsons Brinckerhoff Inc., New York.

6.

6. Meyerhof, G.G. (1982), “Limit state design in geotechnical engineering”, Structural Safety, Vol. 1, pp. 67-71.

7.

7. Park, L.K. (2003), “A study on the characteristic of ground behaviour and settlement restraining effect of micropile during shallow tunnel construction in soft ground”, Ph.D Thesis, Pusan National University.

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