A study on the design of shield tunnel lining in high water pressure condition

Young-Joon Lee; Ki-Lim Kim; Keon-Woong Jeong; Eui-Joon Hong; Seon-Hong Kim; Duk-Chan Jun

doi:10.9711/KTAJ.2015.17.3.227

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2015 Vol.17, Issue 3 Preview Page Next Page

A study on the design of shield tunnel lining in high water pressure condition 고수압 조건에서 쉴드터널 세그먼트 라이닝 구조설계에 관한 연구

31 May 2015. pp. 227-236

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Abstract

In impermeable ground, water pressure is applied due to discontinuity such as joint or fissure. Therefore, water pressure should be considered in design regardless of ground condition. However, when the shape of segmental lining is circular, water pressure may reduce the lining member force, so it is important to define the assumption and the concept of design in case of high water pressure. This paper presents the concepts of design of the lining of shield tunnel at high water pressure and in impermeable ground condition. In addition, the member forces in various load conditions were compared in this study. (elastic equation, closed form solutions, beam-spring model).

Keywords

Segment lining

High water pressure

Load condition

양호한 암반조건이나 균질한 점토지반 등 불투수성 지반의 경우에도 불연속면에 의하여 수압이 작용될 수 있으므로, 설계시 지반조건에 상관없이 수압조건을 고려하고 있다. 그러나, 세그먼트 라이닝의 형상이 원형임에 따라 수압을 고려하는 경우가 오히려 라이닝에 발생되는 부재력을 감소시킬 수가 있으므로, 고수압 조건에서는 이에 대한 설계개념정립이 중요하다. 따라서, 본 논문에서는 고수압의 불투수성 지반조건에서 하중조건 및 하중조합에 따른 부재력 크기 등을 비교함으로서, 세그먼트 라이닝 설계시 합리적이고 적절한 설계개념에 대하여 서술하였다.

키워드

세그먼트 라이닝

고수압

하중조건

References

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5.Hartmann, F. (1985), “Einfache berechnung überschütteter, kreisförmiger rohre von beliebiger steifigkeit, elastizitätstheorie des überschütteten rohres”, Bautechnik, Vol. 62, Issue 7, pp. 224-235.

6.ITA, Working Group No. 2. (2000), Guidelines for the Design of Shield Tunnel Lining. Tunnelling and Underground Space Technology, 15 No. 3, pp. 303-331.

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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 :227-236
Received Date : 2015-04-01
Revised Date : 2015-04-14
Accepted Date : 2015-04-16
DOI :https://doi.org/10.9711/KTAJ.2015.17.3.227

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

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