터널 콘크리트 라이닝 경제적 설계

Concrete lining design method by Terzaghi is hard to estimate the design loads of groundsupporting members-concrete lining by losing the support capacity of the first supporting members like shotcrete and rockbolts in NATM tunnel. Ground-lining interaction model(G.L.I model) is possible to estimate the reasonable design loads on concrete lining. However, a ground loads estimation formula is not used because of complicated estimation method. Therefore, this paper research into a economic design of tunnel concrete lining on the ground loads estimation formula by using ground-lining interaction model