An evaluation of influence factors based on the limit state design-AASHTO LRFD for structural analysis of shield tunnel segment lining

Yang-Woon Kim; Hong-Moon Kim; Hyun-Su Kim; Seong-Won Lee

doi:10.9711/KTAJ.2018.20.1.099

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An evaluation of influence factors based on the limit state design-AASHTO LRFD for structural analysis of shield tunnel segment lining 한계상태설계법-AASHTO LRFD를 적용한 쉴드터널 세그먼트 라이닝의 구조해석 영향인자 평가

31 January 2018. pp. 99-118

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Abstract

Recently, the limit state design method in the design of the structure is in global trend, but it is limited to a few structures in Korea. Since the introduction of the limit state design method has recently been attempted for tunnels, which are the main underground structures, it is surely necessary to understand the latest limit state design method. Therefore, based on the recently published AASHTO LRFD Road Tunnel Design and Construction Guide Specification (2017), structural load factors and load combinations were reviewed, and various factors which should be applied for the review of structures have been analyzed. In this study, utility tunnel section and subway tunnel sections used in Korea were analyzed by the limit state design method, and we have analyzed the direction of application of limit state design method through studying the tendency of member force by various influential factors such as ground conditions, load modifier and joint stiffness.

Keywords

Limit state design

AASHTO LRFD

Segment lining

TBM

최근 토목구조물의 설계에 있어 한계상태설계법 적용이 세계적인 추세이나, 국내에서는 소수의 구조물에 국한되어 사용되고 있다. 주요 지중구조물인 터널에 대해서는 한계상태설계법의 도입이 근래에 시도되고 있으므로, 최신의 한계상태설계법에 대한 이해가 반드시 필요하다. 본 연구는 최근 발간된 AASHTO LRFD Road Tunnel Design and Construction Guide Specification (2017)을 토대로 세그먼트 터널라이닝 설계 시 구조물 하중계수, 하중조합 등을 고찰하고 이외에 구조 검토 시 반영되어야 할 다양한 영향인자에 대해 분석하였다. 본 연구에서는 국내에 적용되고 있는 전력구, 지하철 터널 단면을 대상으로 한 세그먼트 라이닝의 구조해석을 통하여, 지반조건과 하중수정계수, 이음부 강성조건 등 다양한 영향인자들이 부재력에 미치는 영향을 분석 ․ 평가하였다.

키워드

한계상태설계법

AASHTO LRFD

세그먼트 라이닝

TBM

References

American Association of state Highway and transportation Officials (2017), “AASHTO LRFD road tunnel design and construction guide specification (1th Edition)”.

Choi, W.Y., Park, J.D., Lee, S.W. (2014), “Influence of the joint stiffness on the segment design”, Journal of Korean Tunnelling and Underground Space Association, Vol. 16, No. 1, pp. 63-74.

Japan Railway Technical Research Institute (2003), “Design Standard for Railway Structures (Shield tunnel)”, pp. 91-95.

Kim, H.M., Kim, D.K., Lee, S.D. (2014), “Limit states design for tunnels: related researches and present state of application”, Journal of Korean Tunnelling and Underground Space Association, Vol. 16, No. 3, pp. 341-346.

Kim, H.M., Kim, H.S., Shim, K.M., Ahn, S.Y. (2017), “A Study on the factors influencing the segment lining design solved by beam-spring model in the shield tunnel”, Journal of Korean Tunnelling and Underground Space Association, Vol. 19, No. 2, pp. 179-194.

Muir Wood, A.M., Ma, F. (1975), “The circular tunnel in elastic ground”, Geotechnique, Vol. 25, No. 1, pp. 115-127.

U.S. Department of Transportation Federal Highway Administration (2009), “Technical manual for design and construction of road tunnels-civil elements”.

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 : 20
No :1
Pages :99-118
Received Date : 2017-12-01
Revised Date : 2017-12-18
Accepted Date : 2017-12-26
DOI :https://doi.org/10.9711/KTAJ.2018.20.1.099

Journal of Korean Tunnelling and Underground Space Association ISSN:2233-8292(Print) 2287-4747(Online) 한국터널지하공간학회 논문집

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