A study on the rotational stiffness of segment joints in shield tunnel based on Japanese design standards

Youngjoon Lee; Youngjin Kim

doi:10.9711/KTAJ.2026.28.4.287

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2026 Vol.28, Issue 4 Preview Page Next Page

Research Paper

A study on the rotational stiffness of segment joints in shield tunnel based on Japanese design standards 일본 설계기준에 따른 쉴드 터널 세그먼트 이음부의 회전강성에 대한 연구

31 July 2026. pp. 287-301

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Abstract

In shield tunnel design, the joints of the segment lining influence the overall stiffness reduction of the tunnel and the redistribution of sectional forces. Specifically, the rotational stiffness of the longitudinal segment joints is a critical factor that determines the structural behavior and stability of the segment lining. To account for this, the Standard Specifications for Tunneling by the Japan Society of Civil Engineers (JSCE) proposes a segment ring model utilizing beams and rotational springs. This paper analyzes the mechanical mechanisms and nonlinear behavior of segment joints as defined in the Japanese standard, and compares them with the linear rotational stiffness generally applied in domestic engineering practice. It is expected that this study will serve as foundational data for the rational application of relevant standards and structural models in future shield tunnel designs.

Keywords

Shield tunnel

Segment joint

Rotational stiffness

Non-linear behavior

쉴드 터널 설계에서 세그먼트 라이닝의 이음부는 터널 전체의 강성 저하와 단면력의 재분배에 영향을 미친다. 특히 종방향 세그먼트 이음부의 회전강성은 세그먼트 라이닝의 구조 거동과 안정성을 결정하는 중요한 인자다. 그러므로 일본토목학회의 터널표준시방서에서는 이를 반영하기 위해 보와 회전 스프링을 이용한 세그먼트 링 모델을 제시하고 있다. 본 논문은 일본 기준에 정의된 세그먼트 이음부의 역학적 메커니즘과 비선형 거동을 분석하고, 국내 실무에서 일반적으로 적용하는 선형 회전강성과 비교하였다. 본 연구는 향후 쉴드 터널 설계 시 관련 기준과 구조 모델의 합리적 적용을 위한 기초 자료로 활용될 것으로 기대된다.

키워드

쉴드 터널

세그먼트 이음부

회전강성

비선형 거동

References

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Janssen, P. (1983), Tragverhalten von Tunnelausbauten mit Gelenktübbings, Ph.D. Thesis, Technical University of Braunschweig.

JSCE (2016), Standard Specifications for Tunneling-2016 Shield Tunnels, Japan Society of Civil Engineers, Tokyo, pp. 97-105.

KALIS (2013), Development of performance evaluation standards and maintenance manuals for specialized excavation tunnels (shield tunnels), Korea Authority of Land & Infrastructure Safety, pp. 97-100.

Maidl, B., Thewes, M., Maidl, U. (2013), Handbook of Tunnel Engineering Volume I: Structures and Methods, Wilhelm Ernst & Sohn, Berlin, pp. 132-133.

10.1002/9783433603499

Murakami, H., Koizumi, A. (1978), “Study on load bearing capacity and mechanics of shield segment ring”, Proceedings of the Japan Society of Civil Engineers, Vol. 1978, No. 272, pp. 103-115. https://doi.org/10.2208/jscej1969.1978.272_103

10.2208/jscej1969.1978.272_103

RTRI (2022), Design standards for railway structures and commentary (shield tunnels), Railway Technical Research Institute, pp. 230-234.

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 : 28
No :4
Pages :287-301
Received Date : 2026-05-14
Revised Date : 2026-06-22
Accepted Date : 2026-06-22
DOI :https://doi.org/10.9711/KTAJ.2026.28.4.287

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

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