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Obras y proyectos

versión On-line ISSN 0718-2813

Resumen

RADDATZ, Dennis; MIRANDA, Rodrigo  y  TAIBA, Oscar. Design and implementation of CFA piles for a power plant in Coronel, Chile. Obras y Proyectos [online]. 2014, n.15, pp.8-18. ISSN 0718-2813.  http://dx.doi.org/10.4067/S0718-28132014000100001.

The purpose of this study is to present the CFA piles system (Continuous Flight Auger) and to show a case of application for a power station project in Coronel, Chile. The main advantage of this method is the fast execution of the piles, which results in higher yields and lower costs. Even though this technology is popular in other countries and there are favourable soil conditions for its implementation in Chile, this method is not yet commonly used in the country. This paper describes the method's strengths and weaknesses, the favourable and unfavourable geotechnical conditions for its development, and the equipment, materials, and procedures necessary for its implementation. The paper also shows the procedure for estimating the axial capacity of piles in soils where the execution of the method is more common. Finally, an applied case in the Bío Bío Region is presented, following the methods of international regulations and recommendations previously described for the estimation of axial capacity on piles.

Palabras clave : CFA pile; continuous flight auger; pile capacity; friction pile.

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