Essai géotechnique: granulométrie et poids spécifique

FC GENIE CIVIL PREMIÈRE ANNÉE

RAPP RAPPORT ORT DE TRA TRAVAUX PRA PRATIQU TIQUES ES REDIGE PAR : DIRIGE PAR : AGBOH AGBOH K. Jean-Paul M r AKABA Mr SEBOU

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 IN#RODUC#ION La r%al'a(')n /e ()u( )u8ra9e n%,e'(e /e a(%r'au3. Le ,)'3 /e ,e /ern'er 1a8;re (r; '0)r(an( 0)ur 4ue la r%al'a(')n )'( r%u'e. C e( al)r 4u1'l ,)n8'en( /e ,)nna'(re le ,ara,(%r'('4ue /e a(%r'au3. L1'n9%n'eur e( a'n' a00el% < a're /e (e( ,ara,(%r'('4ue ,)un%en( a00el% le ESSAIS .Par' ,e /ern'er n)u /'('n9u)n la 9ranul)%(r'e e( le 0)'/ 0%,'&4ue 4ue n)u 8)u 0r%en()n a0r; n)(re %(u/e au LNB#P =La*)ra()'re Na(')nal /u B>('en( e( #ra8au3 Pu*l',?.

1 LA GRANULOMETRIE 1.1 Défnition C1e( la /%(er'na(')n /e 9ra'n /u )l el)n le /'a;(re =%4u'8alan( /e a*le?. 1.2 Objecti   Ce (e( 0ere( /e re0%rer la 4uan('(% /u a*le 8ra'e 4ue ,)n('en( un a*le 0lu )u )'ne )u'll% /e a(';re )u ,)ll)@/ale. On /'('n9ue 9%n%raleen( /eu3 )/e )0%ra()'re : la 9ranul)%(r'e 0ar 8)'e ;,e e( ,elle 0ar 8)'e u'/e. 1.3 LA GRANULOMETRIE PAR VOIE HUMIDE Elle e( a00l'4u%e au3 a9r%9a( e( au3 )l ar9'leu3. !.".! Pr'n,'0e

Ce( ea' ,)n'(e < %r'er le 9ra'n el)n le /'a;(re < l1a'/e /e (a' /e /'%ren( /'a;(re /1)u8er(ure. !.".2 Ma(%r'au3 0%,'&4ue  #a' /e /'%ren( /'a;(re /1)u8er(ure : er( < (r'er le 9ra'n. E(u8e : 0ere( /e %,er le a(%r'au3. Balan,e en'*le : 0ere( /e a're une eure 0r%,'e. La8a*) : 0)ur le la8a9e. • • • •

!."." D%r)uleen( On a'( un la8a9e /e a(%r'au3. P)ur un *)n la8a9e )n la'e le a(%r'au /an l1eau 0en/an( une /ur%e /1au )'n 8'n9( 4ua(re eure. On le e( /an une *a'ne e( < l1a'/e /1une )u /e /eu3 a'n )n le /%*arrae /1'0ure(% en le r)((an( )u en le r'nan(. A /e 'n(an( (  ,)'' ar*'(ra'reen( )n 8ere l1eau ale a8e, /%l',a(ee /an un (a' /e /'a;(re (r; &n 0)ur %l''ner le '0ure(%. On ra+)u(e /e l1eau < l1a'/e 2  Jean-Paul K. AGBOH

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/1un r)*'ne( /an la *a'ne e( )n ,)n('nue +u4u1< )*(en(')n /1une eau la 0lu ,la're u,e0('*le /1(re )*(enue. On 0eu( ()u(e)' enle8er /'re,(een( a8e, la a'n le '0ure(% /e (a'lle ,)n'/%ra*le )u a''a*le. On e( le ()u( /an une %(u8e /uran( )'3an(e /)ue =2? eure 0)ur %,er le a(%r'au3 ,1e(-