The behavior of adjacent structures in tunnelling induced ground movements

Hak-Moon Kim; Seong-Kon Jeon

doi:None

All Issue

2003 Vol.5, Issue 4 Preview Page Next Page

The behavior of adjacent structures in tunnelling induced ground movements 터널 시공에 따른 지반 및 인접건물의 거동평가

31 December 2003. pp. 313-322

PDF XML

Abstract

This research work presents 3-D behavior of adjacent structures due to tunnelling induced ground movements by means of field measuring data and nonlinear FEM tunnel analysis. The results of the analytical methods from Mohr-Coulomb model are compared with the site measurement data obtained during the twin tunnel construction. It was found that the location and stiffness of the structure influence greatly the shape and pattern of settlement trough. The settlement trough for Greenfield condition was different from the trough for existing adjacent structures. Therefore the load and stiffness of adjacent structures should be taken into account for the stability analysis of the structures.

Keywords

3-D behavior

ground movement

field measuring data

3D FEM analysis

본 연구는 도심지터널 시공시 막장진행에 따라 다양하게 계측된 현장의 계측치 분석을 통하여 막장 진행에 따른 터널 주변지반의 거동 및 인접구조물의 3차원 거동을 상호 규명하였으며, 일반적으로 터널설계시 적용되는 Mohr-Coulomb 모델 및 막장관찰 자료를 바탕으로 한 Hoek-Brown 현장암반모델을 적용한 3차원 유한요소해석을 실시하여 각각의 결과를 비교 검토하여 이들 지반 및 구조물 거동을 규명하였다. 막장 진행에 따른 침하 양상은 greenfield 상태에서의 거동과는 차이를 보이고 있으며 구조물의 위치와 강성 그리고 하중에 큰 영향을 받는 것으로 나타났다.

키워드

3-D behavior

ground movement

FEM analysis

Mohr-Coulomb model

field measuring data

References

1. 권 익 (1995), “지하공동 굴착에 의한 지반침하 거동 연구”, 한양대학교 석사학위 논문.

2. 김태훈 (1998), “정보화된 현장 관측자료를 적용한 터널해석에 관한 연구” 단국대학교 석사학위논문.

3. 김형탁, 김학문 (1995), “3차원 터널해석의 의한 강관다단그라우팅의 보강효과” 단국대학교 석사학위논문.

4. 배규진 (1989), “토사터널 굴착에 따른 주변지반의 변위 예측에관한 연구”, 연세대학교 박사학위논문.

5. Attewell P. B. and Woodman, J. P. (1982), Predicting the dynamics of ground settlement and its derivatives caused by tunnelling in soil. Ground Engineering, Vol 15, No. 8, pp. 13-22.

6. Boscardin. M. D. & Cording. E. J., “Building Response to Excavation induced Settlement”, Journal of Geotechnical Engineering, Vol. 115, No. 1, pp. 1-21.

7. Cording, E. J., Hansmire, W. H., “Displacements around soft ground tunnels-General Report”, 5th Pan American Conference on Soil Mechanics and foundation Engineering, Buenos Aires, Session IV, pp. 571-632.

8. Emerald Soft Consulting “PENTAGON-3D USER’S GUIDE”.

9. Harry M. Horn, A.M. & T.William Lambe F., “Set-tlement of Building on the MIT Campus”.

10. Rankin, W. J Ground movements resulting from urban tunnelling: predictions and effects. Engineering Geology of Underground Move-ments, Geological Society Engineering Geology Special Publication No. 5, pp. 79-92.

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 : 5
No :4
Pages :313-322

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

All Issue