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Título del libro: Earthquake Geotechnical Engineering For Protection And Development Of Environment And Constructions- Proceedings Of The 7th International Conference On Earthquake Geotechnical Engineering, 2019
Título del capítulo: Seismic performance evaluation of tunnel linings in stiff soils

Autores UNAM:
JUAN MANUEL MAYORAL VILLA;

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Autores externos:

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Idioma:
Inglés

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Año de publicación:
2019

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Palabras clave:

Earthquakes; Excavation; Geotechnical engineering; Seismic waves; Soils; Underground structures; Construction procedures; Geotechnical parameters; Global instability; Secondary lining; Seismic condition; Seismic loadings; Seismic performance evaluation; Tunnel excavation; Tunnel linings

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Resumen:

Modern tunnel excavation techniques in heavily populated cities such as Mexico City, must be accompanied by both proper instrumentation and numerical modeling to foreseen and reduce potential risk situations, associated with local and global instability. These simulations must account for subsoil conditions, tunnel geometries, and construction procedures, to estimate as close as possible the internal forces acting on the primary and secondary lining, generated by the excavations, for both static and seismic conditions. Historically, underground facilities have experienced a lower damage rate than surface structures under seismic loading. Thus, seismic effects on underground structures have been only marginally studied. In general, damage to tunnels occurs when there is an abrupt change in soil stiffness. This paper presents the seismic performance evaluation of tunnel linings in rigid soils. Initially, the risk associated with the determination of geotechnical parameters was evaluated. Then, three-dimensional finite differences models were developed using the software FLAC3D to assess the tunnel performance taking into account the seismic effects on the internal forces produced on the primary and secondary lining. © 2019 Associazione Geotecnica Italiana, Rome, Italy.

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Entidades citadas de la UNAM:

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Fuente:


ISBN:
9780367143282
Editorial:
CRC Press/Balkema

Tipo de producto:
Conference Paper