Construction and Design of Foundations for French Overhead Power Transmission Networkby M. Gagneux, Cent d'Equipement du Ruseau de, Transport, Paris, France,
J. L. Lapeyre, Cent d'Equipement du Ruseau de, Transport, Paris, France,
Document Type: Proceeding Paper
Part of: Foundations for Transmission Line Towers
This paper summarizes present conception and design of foundations for 90 to 400 kV overhead lines in France. Firstly principles of geotechnical studies in use are presented: various types and number of soil investigations are discussed. Then several kinds of foundations employed are described: pad and chimney foundations for towers in soft soils; block foundation in case of rocky soils; present tendency in use of driven piers for separate footing foundations of towers; and foundations for single poles. Designs and safety coefficients of such foundations are presented.
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