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A platform for research: civil engineering, architecture and urbanism
Construction of deep tunnel shafts in Mexico city soft clays by the flotation method
Abstract The drainage system of Mexico City, one of the largest metropolitan areas in the world, is formed by a large network of interceptors and collectors leading to the main outlet: a 49.3-km-long tunnel with a 6.5 m diameter. To build the access shafts to the tunnels of the system and the deep sumps of the pumping stations in the very soft clays of the lacustrine area of Mexico valley, a technique known as “flotation method” has been commonly used since 1969. The paper presents the main construction steps followed and some aspects of the analysis and design of shafts constructed by this technique. The experience gained obtained after more than 30 shafts have been constructed by this method, and the actual trends in its application are also discussed.
Construction of deep tunnel shafts in Mexico city soft clays by the flotation method
Abstract The drainage system of Mexico City, one of the largest metropolitan areas in the world, is formed by a large network of interceptors and collectors leading to the main outlet: a 49.3-km-long tunnel with a 6.5 m diameter. To build the access shafts to the tunnels of the system and the deep sumps of the pumping stations in the very soft clays of the lacustrine area of Mexico valley, a technique known as “flotation method” has been commonly used since 1969. The paper presents the main construction steps followed and some aspects of the analysis and design of shafts constructed by this technique. The experience gained obtained after more than 30 shafts have been constructed by this method, and the actual trends in its application are also discussed.
Construction of deep tunnel shafts in Mexico city soft clays by the flotation method
Auvinet-Guichard, Gabriel (author) / Rodríguez-Rebolledo, Juan F. (author) / Rangel-Núñez, José L. (author)
Acta Geotechnica ; 5 ; 63-68
2010-03-20
6 pages
Article (Journal)
Electronic Resource
English
Construction procedure , Deep tunnel shafts , 2D and 3D modeling , Excavation stability , Finite element method , Flotation method , Tunneling , Uplift failure Engineering , Geoengineering, Foundations, Hydraulics , Continuum Mechanics and Mechanics of Materials , Geotechnical Engineering & Applied Earth Sciences , Soil Science & Conservation , Soft and Granular Matter, Complex Fluids and Microfluidics , Structural Mechanics
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