Abstract
In this paper, we discuss lining design method of the shield tunnel including secondary lining. In particular, we consider of the transmitted force to segment lining by the weight of the secondary lining, using beam-spring design model. Because the secondary lining in our discussion has been combined with segment lining by means of JIBEL reinforcing bar. Therefore, we estimate local bond-slip relation between JIBEL and secondary lining concrete at the non-linear spring in our analitical model.
Finally, we show that stress and deformation of segment lining due to secondary lining construction has been trend to increase, and dead load stress of secondary lining has been generate tension axial-force at crown of the tunnel.
