Kikou93 Posted April 8, 2017 Report Share Posted April 8, 2017 Bonjour, Pour calculer la coefficient de poussée des terres active Ka en utiliser la formule (Voir image "formule 1") qui est l'abréviation de la formule de poncelet (Voir Image "Formule 2") Si λ et β et δ égale 0, ou on utilise la table de Caquot et Kérisel (Voir le Fichier PDF) Par exemple (On utilisant la formule de poncelet) : *Si φ =30° | λ = 0° | β= 0° | δ= 0° -> Alors Ka = 0.333 (la même valeur que la table de Caquot et Kérisel) * Si φ =30° | λ = 10° | β= 0° | δ= 20° -> Alors Ka = 0.377 (Alors que Ka = 0,366 dans la table de Caquot et Kérisel) je ne crois pas avoir fait des erreurs dans le calcul et j'ai bon chercher j'arrive pas à trouver une autre formule pour calculer Ka je demande votre aide pour régler ce problème qui paraît selle pour certains merci d'avance pour votre aide Tables_de_Caquot_et_Kérisel.pdf Quote Link to comment Share on other sites More sharing options...
MAKER Posted April 8, 2017 Report Share Posted April 8, 2017 Quote Link to comment Share on other sites More sharing options...
Kikou93 Posted April 8, 2017 Author Report Share Posted April 8, 2017 (edited) Edited April 8, 2017 by Kikou93 Quote Link to comment Share on other sites More sharing options...
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Kikou93 Posted April 12, 2017 Author Report Share Posted April 12, 2017 (edited) Edited April 12, 2017 by Kikou93 Quote Link to comment Share on other sites More sharing options...
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Kikou93 Posted April 14, 2017 Author Report Share Posted April 14, 2017 (edited) Edited April 14, 2017 by Kikou93 Quote Link to comment Share on other sites More sharing options...
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