- Volume 11 Issue 1
This study was performed to investigate the bending stresses of tunnel shotcrete as a function of the coefficient of lateral earth pressure. To perform this study, a large scale model tunnel with an one-lane horseshoe shaped road tunnel was prepared. The 3 dimensional numerical analyses were carried out to verify the results obtained from the model tests. For the loading system during the tests, 11 cylinder pressure jacks which can be controlled individually were used to simulate various loading conditions. The tests were preformed three times with three different lateral earth pressure coefficients of 0.5, 1.0 and 2.0. The bending stresses of shotcrete measured in tests were compared and analyzed with those calculated from numerical analyses. As a result, it was found that the bending compressive stresses obtained from numerical analyses were similar to those of tunnel model tests and bending tensile stresses were slightly overestimated during numerical analyses.
- 유광호, 정지성, 박연준 (2008), "강섬유보강 솟크리트의 터널모헝실험 및 수치해석적 검증", 한국암반공학회 논문집, Vol. 18, No. 2, pp. 107-117.
- Itasca Consulting Group, Inc. (2006), FLAC-3D, Fast Lagrangian Analysis of Continua, Vcrsion 3.10, Itasca Consulting Group, Minneapolis, Minnesota, USA
- 유광호, 이민호, 박연준 (2007), "솟크리트 거동에 대한 갱도모형실험과 수치해석의 비교", 한국암반공학회 춘계학술발표회, 서울대 호암 켄벤션 센터, pp. 112-121.
- 유광호, 박연준, 홍근영, 이현구, 김재권 (2005), "지보재 파괴를 고려한 터널 안전율의 수치해석적 산정 연구", 한국터널공학회 논문집, Vol. 7, No. 1, pp. 37-49.
- 한국도로공사 도로연구소 (2001), 강섬유보강 숏크리트의 성능 향상 및 품질기준 정립(Il), 2001년도 연구보고서, pp. 199.
- 전중규, 전찬기, 김낙영, 김수만, 이종은 (2006), "모형 실험에 의한 터널 콘크리트 라이닝의 천단부 균열 제어에 관한 연구", 한국터널공학회 논문집, Vol. 8, No. 3, pp. 227-235.