2024-03-19T01:49:42Zhttps://www.tdx.cat/oai/requestoai:www.tdx.cat:10803/1452552017-08-30T15:39:25Zcom_10803_183col_10803_207
TDX (Tesis Doctorals en Xarxa)
author
Clot Razquin, Arnau
authoremail
arnauclotrazquin@gmail.com
authoremailshow
false
director
Romeu, Jordi (Romeu GarbĂ)
codirector
Arcos VillamarĂn, Robert
authorsendemail
true
2014-06-13T10:45:23Z
2014-06-13T10:45:23Z
2014-02-20
http://hdl.handle.net/10803/145255
B 15983-2014
This thesis presents a three-dimensional dynamic model of a double-deck circular tunnel embedded in a full-space. The model uses the receptance method to obtain the response of the complete structure from the response of its parts. The considered subsystems are the interior floor and the tunnel-soil coupled system. The classical thin plate theory is considered to represent the behaviour of the first and the Pipe in Pipe model is chosen to describe the second. Because the complete model is assumed to be geometrically invariant in the train circulation direction, the coupling of both systems is performed in the wavenumber-frequency domain. After the model formulation, some important issues about its numerical computation are detailed and the obtained results are discussed. The response of a double-deck tunnel to a dynamic and to a quasistatic excitation is compared to the response obtained for a simple tunnel. The first comparison is done performing a power flow study of both tunnel structures when a harmonic line load is applied on them. The main differences between their radiation magnitudes and patterns are identified and discussed. The second comparison is done calculating the total amount of energy crossing a certain surface when a static load moving at a constant speed is considered. Results for a wide range of load speeds and radial distances are presented. A complete track-tunnel-soil model is finally obtained coupling a superstructure model to the interior floor model previously presented.
eng
A dynamical model of a double-deck circular tunnel embedded in a full-space
info:eu-repo/semantics/doctoralThesis info:eu-repo/semantics/publishedVersion
URL
https://www.tdx.cat/bitstream/10803/145255/1/TACR1de1.pdf
File
MD5
5e97ccde645d55b2ba0b49c25cfce9c6
5816901
application/pdf
TACR1de1.pdf
URL
https://www.tdx.cat/bitstream/10803/145255/5/TACR1de1.pdf.txt
File
MD5
087da107db42178779205948101e4474
230703
text/plain
TACR1de1.pdf.txt