TP 1 Mécaniue de Sol I

 Atelier  A telier de Mécanique de sol I 4ème Année Ingénieur Spécialité : Génie Civil Groupe B1 TP1 : Essai Essa i Proctor

Ramzi Hosni

Gachita Hossem Edine

Souhail Zaafrani El hamdiArbi

7

2016/2017

4ème Année Ingénieur Spécialité : Génie Civil

Groupe B1

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TP1 : Essai Proctor

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Essai Proctor I. But de l’e ’ess ssa ai

Essai roctor a !our but de d"terminer la teneur en eau o!timale !our un sol de remblai donn" et des de s conditions de com!acta#e $%"es& 'ui conduit au meilleur com!acta#e !ossible ou encore ca!acit" !ortante ma%imale( II. Pri Princi ncipe pe de l’es l’essai sai

)n !rend un "chantillon de sol !r"alablement s"ch" * l+"tu,e& on a-oute un !oids d"termin" d+eau( )n installe le sol humide dans un moule standard en couches 'u+on com!acte a,ec une "ner#ie donn"e !ar la chute d+une dame tombant d+une hauteur constante( A!r.s com!acta#e& on !.se le moule& on d"termine la teneur en eau du mat"riau com!act"( )n obtient alors& le !oids ,olumi'ue sec  soit un !oint de la courbe de com!acta#e( )n recommence l+essai en au#mentant& * cha'ue fois la teneur en eau& !our obtenir ainsi la courbe de com!acta#e !oint !ar !oint( A,ec les ,aleurs trou,"es& on trace tr ace la courbe

γd =f  (  ( w ) (est la courbe

roctor  elle !r"sente un ma%imum corres!ondant en abscisse a la teneur en eau o!timale 3o!t 4 et dont l+ordonn"e est le !oids ,olumi'ue a!!arent ma%imal du sol(

Figure 1. Allure de la courbe de Proctor

III.Matériel nécessaire

5oule R ",entuellement roctor4& ame roctor normal ou modi$"&

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E!rou,ette #radu"e 190 ml en,iron& etits r"ci!ients mesures des teneurs en eau4& alance !ort"e 20