Análisis sísmico de túnel NATM en suelos finos: Comparación de respuesta sísmica mediante tres metodologias [NATM tunnel seismic analysis in fine soils: Comparison of seismic response using three methodologies]
Author(s)
Solans Roa, David
Hormazabal, Cristian
Rojas, Benjamin
Leon, Roberto
Type
Conference Paper
Abstract
Seismic design of tunnels is often based on simplified models through analytical expressions for elemental geometries and structural software which not include soil stress path due to a construction stages and the distance of the front of the excavation, resulting in overestimating the tunnels efforts. However, the development of finite differences or finite elements software has been providing new tools that solve these problems and allow evaluating the seismic response through seismic records.
This article compares the seismic response of NATM tunnel in soft soil through seismic distortion of soil applied on
structural analysis software and finite difference software for soil – structure interaction. Additionally, to the last case
it applied a seismic record. The results of these analyses are compared in terms of seismic response of soils and
structural design according to current Chilean practice.
This article compares the seismic response of NATM tunnel in soft soil through seismic distortion of soil applied on
structural analysis software and finite difference software for soil – structure interaction. Additionally, to the last case
it applied a seismic record. The results of these analyses are compared in terms of seismic response of soils and
structural design according to current Chilean practice.
Date Issued
2014-11-26
Date Acceptance
2014-07-01
Citation
VIII Chilean Geotechnical Conference, 2014
Publisher
ISSMGE
Journal / Book Title
VIII Chilean Geotechnical Conference
Copyright Statement
© 2014 The Author(s).
Source
VIII Chilean Geotechnical Conference
Publication Status
Published
Start Date
2014-11-26
Finish Date
2014-11-29
Coverage Spatial
Santiago, Chile