Premium
Effect of adjoining structures on seismic response of tunnels
Author(s) -
Navarro C.
Publication year - 1992
Publication title -
international journal for numerical and analytical methods in geomechanics
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.419
H-Index - 91
eISSN - 1096-9853
pISSN - 0363-9061
DOI - 10.1002/nag.1610161103
Subject(s) - structural engineering , acceleration , finite element method , geotechnical engineering , frequency domain , free field , soil structure interaction , seismic analysis , geology , engineering , shear (geology) , seismic wave , time domain , seismology , acoustics , computer science , physics , petrology , classical mechanics , computer vision
In this paper the seismic behaviour of buried concrete tunnels is studied using the finite element method. The numerical tool employed is the well‐known soil–structure interaction computer program FLUSH and thus analyses are carried out in the frequency domain. The seismic environment is supposed to consist of vertically propagating shear and compression waves that reproduce artificial accelerograms of a broad frequency content at selected control points. The effect of near or adjacent massive structures, such as those of nuclear power plants, is evaluated showing their influence on tunnel response. The results calculated for acceleration levels, internal structural loads, response spectra, etc., are analysed and compared either with those obtained from soil free‐field response or with others computed using an alternative simplified methodology, providing useful information for preliminary design purposes.