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Título del libro: Geotechnical Aspects Of Underground Construction In Soft Ground - Proceedings Of The 7th International Symposium On Geotechnical Aspects Of Underground Construction In Soft Ground
Título del capítulo: Mexico City deep Eastern Drainage Tunnel

Autores UNAM:
GABRIEL YVES ARMAND AUVINET GUICHARD;
Autores externos:

Idioma:

Año de publicación:
2012
Palabras clave:

Drainage; Sewage; Soils; Volcanic rocks; Volcanoes; Analysis method; Construction method; Geological formation; High water pressure; Mechanical characteristics; Tunnel projects; Tunnel sections; Volcanic soils; Tunnels


Resumen:

The Eastern Drainage Tunnel project (Túnel Emisor Oriente, TEO) of Mexico City, a deep drainage system for mixed storm water and sewage, with a length of 62 km and interior diameter of 7 m, is being built mainly through lacustrine, alluvial and volcanic soil deposits with a wide range of mechanical characteristics and, along some short stretches, through volcanic rocks. The tunnel's construction also requires excavating 24 shafts with 12-16 m interior diameter and depth ranging from 28 to 155 m. The poor properties of some of the soils encountered, their expected seismic response, the foreseeable effects of regional subsidence on the tunnel in the lacustrine zone, and the high water pressure registered in some geological formations make this project particularly challenging. This paper describes the main features of the project, presents a brief summary of the soil properties, and discusses briefly the geotechnical criteria and analysis methods that were adopted for the design of the typical shafts and tunnel sections, as well as some of the construction methods that are being implemented. © 2012 Taylor & Francis Group.


Entidades citadas de la UNAM: