Analysis of circular tunnels due to seismic P-wave propagation, with emphasis on unreinforced concrete liners

Title: Analysis of circular tunnels due to seismic P-wave propagation, with emphasis on unreinforced concrete liners
Creator: Kouretzis, GP; Andrianopoulos, KI; Sloan, SW; Carter, JP
Relation: Computers and Geotechnics Vol. 55, p. 187-194
Relation: 55
Publisher Link: http://dx.doi.org/10.1016/j.compgeo.2013.08.012
Publisher: ELSEVIER SCI LTD
Resource Type: journal article
Date: 2014
Description: A set of closed-form expressions to calculate tunnel liner forces due to compressional seismic P-wave propagation is presented. The results are compared against a state-of-practice method that considers only shear S-waves, and verified against dynamic numerical analyses. Under the realistic assumption of full-slip conditions at the liner-rock mass interface, it is shown that P-waves can lead to significantly higher axial hoop forces compared to S-waves, and can be critical for tunnels bored through areas of irregular topography/geological stratigraphy. The findings are of particular interest for the analysis of unreinforced concrete tunnel liners, where earthquake effects can be a governing factor. © 2013 Elsevier Ltd.
Subject: Earthquakes; P-waves; Tunnels; Unreinforced concrete
Identifier: http://hdl.handle.net/1959.13/1056712
Identifier: uon:16078
Identifier: ISSN:0266-352X
Language: eng
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