A study on the member forces of segmental linings considering key segments

Seungjoo Woo; Chungsik Yoo

doi:10.9711/KTAJ.2015.17.3.363

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2015 Vol.17, Issue 3 Preview Page Next Page

A study on the member forces of segmental linings considering key segments TBM 세그먼트 조립 특성에 따른 부재력 변화 연구

31 May 2015. pp. 363-382

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Abstract

This paper presents a numerical study on the effect of segment assembly characteristics on the TBM segmental lining member section forces. Analyses have been carried out through the two-ring beam finite element model by Midas civil 2012+. TBM segment lining member forces are determined by various joint characteristics. In this study, the segmental member forces were investigated with various joint number and orientation at fixed values of joint stiffness, ground spring parameters. The numerical results were used to identify trends of the member forces in the tunnel lining with the segment assembly characteristics.

Keywords

Segment lining

Key segment

Joint characteristics

Number of joint

Angle of joint

본 연구는 수치해석을 통하여 TBM 세그먼트의 분할 수와 인접한 링의 이격각도가 라이닝의 부재력에 어떤 영향을 미치는 살펴보았다. 수치해석은 Midas civil 2012+ 프로그램을 사용하였고, 모델링은 2링빔 스프링 모델을 이용하였다. TBM 세그먼드 부재력은 다양한 요소에 의해 결정된다. 본 논문에서는 세그먼트 분할 수와 분포를 제외한 다른 요소인 이음부 스프링 계수, 지반반력계수를 통제하고 특정한 분할 수와 분할 특성을 통해 case를 선정함으로써 분할 수와 분포와 같은 분할 특성이 부재력에 미치는 영향을 분석하였다. 이로써 TBM 세그먼트 시공･설계시 구조적으로 유리하거나 불리한 이음부 특성을 확인할 수 있다.

키워드

세그먼트 라이닝

키 세그먼트

이음부 특성

분할 개수

링간 이격 각도

References

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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 : 17
No :3
Pages :363-382
Received Date : 2015-05-04
Revised Date : 2015-05-18
Accepted Date : 2015-05-20
DOI :https://doi.org/10.9711/KTAJ.2015.17.3.363

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

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