TY - JOUR
T1 - Analysis of circular tunnels due to seismic P-wave propagation, with emphasis on unreinforced concrete liners
AU - Kouretzis, George P.
AU - Andrianopoulos, Konstantinos I.
AU - Sloan, Scott W.
AU - Carter, John P.
PY - 2014
Y1 - 2014
N2 - 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.
AB - 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.
KW - concrete construction
KW - earthquake engineering
KW - seismic waves
KW - shear waves
KW - tunnel lining
UR - http://handle.uws.edu.au:8081/1959.7/uws:31204
U2 - 10.1016/j.compgeo.2013.08.012
DO - 10.1016/j.compgeo.2013.08.012
M3 - Article
SN - 0266-352X
VL - 55
SP - 187
EP - 194
JO - Computers and Geotechnics
JF - Computers and Geotechnics
ER -
