Abstract
This paper presents the stress and strain distribution and change during the tunnel construction, and the stress and strain are compared with different construction methods. Mathematical model was firstly introduced. Then the stress and the strain during the up tunnel construction from two methods were compared. The historical stress and strain curves of key node of tunnel during the tunnel construction were analyzed. The different stress changes from different construction methods were compared. We can get the conclusion that the construction method affects the stress distribution and change.
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