Foundations Design of the Overpass At 6 de Agosto Avenue and Panamericana Avenue Using Micropiles
DOI:
https://doi.org/10.52428/20758944.v11i34.702Keywords:
Overpass, Foundation, Micropiles, Load TestingAbstract
In arder to improve the traffic flow in the city south, in Cochabamba, Bolivia; it was necessary the construction of an overpass at the intersection of 6 de Agosto and Panamericana avenues, choosing an arch-type solution.
Given the magnitude of the structure, the load stresses imposed on the foundations and the characteristics of the subsurface, a design using deep foundations has been necessary. Therefore, an alternative design using micropiles has been required, which has allowed the construction of the foundation of the bridge, considering the actual field conditions without affecting the structural stability, and also has allowed a significant saving in the budget. As a complement, an optimization of the proposed final design, with an optimum tilt angle that favored the behavior of the micropiles against lateral loads, which reduced the number of micropiles and the geometry of the cap, thereby achieving a satisfactory technical solution, and also economically feasible
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(1) ÁLVAREZ Ltda. (2014). Informes Diseño de Fundaciones Paso a Desnivel Av. 6 de Agosto y Av. Panamericana.Cochabamba-Bolivia.ConstructoraÁlvarez Ltda.
(2) FRATTELLI, M. G. (1993). Suelos, Fundaciones y Muros. Caracas-Venezuela.Bonalde Editores.
(3) STEUDLE, K., LEWIS, M., & BRACERAS, C. (2012).AASHTO- LRFD Bridge Design Specifications. Washington DC. American Associationos State Highway and TransportationOficcials.
(4) LEONI, A. J. (2005). Apuntes sobe Micropilotes Inyectados. La Plata-Argentina. Universidad Nacional La Plata.
(5) SABATINI,P., TANYU, B., ARMOUR,T., GRONECK, P., & KEELY,J. (2005). FHWA- Micropile Design and Construction (Reference Manual for NHI Course 132078). Estados Unidos. National Highway lnstitute.
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Copyright (c) 2015 Nathalie Le Noir Rivas y Víctor Hugo Álvarez lriarte
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