Memorias de investigación
Research Publications in journals:
A closed-form solution for the seismic racking and rocking behavior of rectangular tunnels
Year:2019

Research Areas
  • Seismology,
  • Civil engineering

Information
Abstract
Current design methodologies for underground structures subjected to earthquake action are based on closedform solutions of the so-called racking coefficient, which relates the soil free-field distortion deformation to the structure distortion deformation. Existent closed-form expressions for this racking coefficient are derived for circular tunnel geometries embedded in an elastic and homogeneous medium, while expressions for rectangular geometries are based on analogies of the circular case. In this paper, a new and intuitive methodology derived from first principles to obtain a closed-form expression for the racking coefficient for rectangular-like tunnel geometries buried at a sufficient depth is presented, and it is shown that it provides a good fit to finite element analyses results. Similarly, a procedure to obtain closed-form expressions for the rocking rotation of the structure, and the racking deformation profile at different distances from the soil-tunnel interface is presented.
International
Si
JCR
Si
Title
Tunnelling And Underground Space Technology
ISBN
0886-7798
Impact factor JCR
2,418
Impact info
Datos JCR del año 2017
Volume
88
10.1016/j.tust.2019.03.002
Journal number
From page
87
To page
97
Month
JUNIO
Ranking
Participants

Research Group, Departaments and Institutes related
  • Creador: Grupo de Investigación: Mecánica de Rocas