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Research Article Open access CC BY 4.0

Study of Non-uniform Seismic Response of Intercity Tunnels with Defective Shields

Leilei Shi, Donghong Xia

Journal of Engineering Research and Reports · pp. 1–7 · Published 20 Sep 2023

10.9734/jerr/2023/v25i9975

Abstract

Based on the structural viscoelastic boundary theory, considering the geological changes of the soil layer and depth of tunnel crossing, the dynamic time course analysis is carried out for the defective lined tube sheet structure under non-uniform seismic excitation, to obtain the force and deformation law of the whole tunnel structure as well as the defective section. Analyze the dynamic response of shield tunnel structure under non-consistent seismic excitation under the influence of tube sheet misalignment factors, summarize the intrinsic mechanism of the dynamic response of defective tunnel tube lining structure, identify the phenomena affecting lining junction damage, and refine the seismic safety evaluation method of defective lining structure.

Shield tunnel lining misalignment non-uniform earthquake disease seismic performance

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