APPLICABILITY OF THE BEAM-SPRING MODEL WITH GROUND SPRINGS SET ALL AROUND THE LINING TO DESIGN OF SHIELD TUNNEL LINING BY COMPARISON OF IN-SITU MEASUREMENTS AND THE SENSITIVITY ANALYSIS

Abstract

It has been already suggested that the Beam-Spring Model, in which ground springs set all around the tunnel lining, is the most rational design method of shield tunnel lining constructed in hard and strong ground. Using the design model, some sensitivity analysis with several kinds of factors are carried out. Applicability of the model to actual design of tunnel lining is investigated by comparing the result of the analyses and the in-situ measurements. Consequently, it reveals that this design model is able to simulate the behavior of shield tunnel lining and also execute both safeness and economizing for shield tunnel lining.