INFORME VI Coeficiente de Permeabilidad de Cargacortante

7/25/2019 INFORME VI Coeficiente de Permeabilidad de Cargacortante

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UNIVERSIDAD NACIONAL DE SANAGUSTÍN DE AREQUIPA

ESCUELA PROFESIONAL DEINGENIERÍA CIVIL

PRÁCTICAS DE LABORATORIO DE MECÁNICA

DE SUELOS IIVIERNES DE 2:00 – 4:00 PM

INFORME I

ENSAYO DE COEFICIENTE DE

PERMEABILIDAD – MÉTODO DELA CABEZA CONSTANTE

DIRIGIDO A: INGENIERA HYPATIA YANQUI

ALUMNA: LUCIA MERCEDES ACHAHUI CARDEÑA



AREQUIPA 20!

" M#$%& '()$*%&

ENSAYO DE COEFICIENTE DE PERMEABILIDAD – MÉTODO DECABEZA CONSTANTE

"" N&$+#- ASTM D2434-68- AASHTO T125-66

"2" O,-('*.&/- Determinar el coeficiente de permeabilidad de un suelo usando carga

constante (método de la cabeza constante).

- Aprender como hallar el coeficiente de permeabilidad en un suelogrueso."" A/1(%'&/ (3($#4(/

El coefcie!e "e #e$%e&'ili"&" e( )& co(!&!e "e#$o#o$cio&li"&" $el&cio&"& co l& *&cili"&" "e %o+i%ie!o "e) ,)o & !$&+.( "e ) %e"io #o$o(o/ Ei(!e "o( %.!o"o(ee$&le( "e l&'o$&!o$io #&$& "e!e$%i&$ "i$ec!&%e!e elcoefcie!e "e #e$%e&'ili"&" "e ) ()elo/ E(!o( (o lo( ll&%&"o(métodos de la cabeza constante el c)&l $e&li&$e%o( &co!i)&ci el %.!o"o "e c&'e& +&$i&'le/ A%'o( (e '&(&

e l& le )(o "e l& ley de Darcy /

Ni el e(&o "e c&'e& co(!&!e i el "e c&'e& +&$i&'le#e$%i!e o'!ee$ +&lo$e( "el coefcie!e "e #e$%e&'ili"&" "e )()elo "e%&(i&"o cof&'le(/ Ei(!e %)c&( $&oe( #&$& e(!o#e$o l&( #$ici#&le( (o l&( (i)ie!e(:

1/ El ()elo 7)e (e )!ili& e el &#&$&!o "e #e$%e&'ili"&" )c& e(i)&l &l ()elo 7)e (e !iee e el !e$$eo (ie%#$e e(!9 &lo&l!e$&"o

2/ ;& o$ie!&ci i (i!) "e lo( e(!$&!o( co $e(#ec!o &l ,)o "e&)& e( #$o'&'le%e!e "i*e$e!e e l&'o$&!o$io/

3/ ;&( co"icioe( "e *$o!e$& (o "i*e$e!e( e el l&'o$&!o$io/;&( #&$e"e( li(&( "el %ol"e "e #e$%e&'ili"&" %eo$& lo(c&%io( "el ,)o co $e(#ec!o & lo( c&%io( &!)$&le( e el!e$$eo/ Si el ()elo !iee e(!$&!ifc&ci +e$!ic&l el ,)o e lo("i*e$e!e( e(!$&!o( (e$9 "i*e$e!e e(!& co"ici "e *$o!e$& e(c&(i i%#o(i'le "e $e#$o")ci$ e el l&'o$&!o$io/



4/ ;& c&$& i"$9)lic& < #)e"e (e$ "i*e$e!e & %e)"o %)co%&o$ e el l&'o$&!o$io lo c)&l c&)(& el l&+&"o "e %&!e$i&l fo&ci& l&( *$o!e$&( co )& #o(i'le $e")cci e el +&lo$ "e =/ ;o($&"ie!e( i"$9)lico( o'!ei"o( e el !e$$eo i > ?; +&$@&

e!$e 0/5 1/5 %ie!$&( 7)e e el l&'o$&!o$io ()ele (e$ 5 o%9(/ Ei(!e e+i"eci& o'!ei"& e "i*e$e!e( i+e(!i&cioe( 7)e&ce #e(&$ 7)e + > = i o e( )& $el&ci lie&l #&$& !o"o( lo(+&lo$e( "e i e(#eci&l%e!e #&$& +&lo$e( $&"e( Mi!cell o)e$ 1B6C/ Po$ o!$& #&$!e ei(!e !&%'i. e+i"eci& "e 7)e()elo( fo( &$cill&( #)e"e ei(!i$ ) $&"ie!e )%'$&l #o$"e'&o "el c)&l o & ,)o/ Te$&i 1B25/

5/ El e*ec!o "el &i$e &!$&#&"o e l& %)e(!$& "e l&'o$&!o$io e($&"e &) #&$& #e7)e&( ')$')&( "e &i$e "e'i"o &l !&%&o !&

#e7)eo "e l& %)e(!$&/

Ley de Darcyv=ki

D"e:- v > +eloci"&" "e e(c)$$i%ie!o "e ) ,)i"o & !$&+.( "el ()elo- K > coefcie!e "e #e$%e&'ili"&" #$o#io c&$&c!e$@(!ico- i > $&"ie!e i"$9)lico el c)&l $e#$e(e!& l& $el&ci e!$e l&

"i*e$eci& "e i+ele( H l& "i(!&ci& ; 7)e el &)& $eco$$e

l& +eloci"&" "el ,)o e(:

Q=kiA

D"e:- Q: c&)"&l "el ,)o- A: 9$e& #o$ "o"e #&(& el ,)o



D"e:- I > $&"ie!e i"$9)lico > <?;- < > c&$& i"$9)lic& & lo l&$o "e l& %)e(!$&- ; > ;oi!)" "e l& %)e(!$& & !$&+.( "e l& c)&l (e %i"e - A > 9$e& "e l& (ecci !$&(+e$(&l "e l& %&(& e

co(i"e$&ci/

El coefcie!e "e #e$%e&'ili"&" "e )& %&(& "e ()elo o%o.e&"e#e"e #$ici#&l%e!e "e lo( (i)ie!e( *&c!o$e(:

1/ ;& +i(co(i"&" "el ,)i"o e lo( #o$o( o$%&l%e!e &)&/ A %e"i"&7)e l& !e%#e$&!)$& &)%e!& l& +i(co(i"&" "el &)& "i(%i)e elcoefcie!e "e #e$%e&'ili"&" &)%e!& e( "eci$ l& +eloci"&" "e,)o &)%e!&/ El coefcie!e "e #e$%e&'ili"&" (e & o$%&li&"o &20 F G "e *o$%& 7)e el coefcie!e "e #e$%e&'ili"&" & c)&l7)ie$!e%#e$&!)$& T (e #)e"e e#$e(&$ co $e(#ec!o & =20 #o$ %e"io "el& (i)ie!e ec)&ci:

k 20=k

T ×

nT

n20

D"e:

- nT n

20 (o l&( +i(co(i"&"e( "e lo( ,)i"o( & l&

!e%#e$&!)$& T "el e(&o & 20 F G $e(#ec!i+&%e!e/ E(#o(i'le )!ili&$ l& +i(co(i"&" &'(ol)!& o l& +i(co(i"&"cie%9!ic& "el ,)i"o e l& ec)&ci &!e$io$/

2/ ;& $el&ci "e +&c@o( e "el ()elo/ Se & eco +&$io( i!e!o( #&$&co$$el&cio&$ el coefcie!e "e #e$%e&'ili"&" "el ()elo & )&

$el&ci "e +&c@o( "&"& co el %i(%o ()elo & "i*e$e!e $el&ci "e+&c@o( = > * e/

3. El !&%&o *o$%& "e lo( $&o( "e ()elo/ All& H&e e(!)"io el)(o "e &$e&( e fl!$o( #&$& o'$&( i"$9)lic&( cocl)o 7)e #&$&&$e&( li%#i&( $&+&( el coefcie!e "e #e$%e&'ili"&" #)e"ee#$e(&$(e &#$oi%&"&%e!e co%o:

k =100×D10

2cm/ s



P&$& ) $&o "e D e!$e 0/1 J D10 J 3/0 %% El D10 7)e (e )!ili&e( el "i9%e!$o co$$e(#o"ie!e &l 10 K %9( fo e !&%&o "e l&%)e(!$& o'!ei"o "e l& c)$+& "e "i(!$i')ci $&)lo%.!$ic& e#$e(&"o e c%/

;& #$e(eci& "e #&$!@c)l&( &)l&$e( l&%i&$e( !ie"e & $e")ci$ =%9( 7)e c)&"o el ()elo e(!9 co%#)e(!o #$e"o%i&!e%e!e #o$#&$!@c)l&( $e"o"e&"&( e(*.$ic&(/

4/ El $&"o "e (&!)$&ci/ A %e"i"& 7)e &)%e!& el $&"o "e(&!)$&ci el coefcie!e "e #e$%e&'ili"&" &#&$e!e !&%'i. (eic$e%e!&/ E #&$!e e(!e &)%e!o (e "e'e & l& "i(!$i')ci e l&!e(i ()#e$fci&l/ El o$ie "el $e(!o "el &)%e!o (e "e(cooce#)e( e( "i*@cil "e!e$%i&$ = & %eo( 7)e (e co(i"e$e co!i)i"&"

"e ,)o & !$&+.( "el %e"io/ El ,)o & !$&+.( "el %e"io #o$o(o #)e"eo'!ee$(e Lic&%e!e co(i"e$&"o l& c&!i"&" 7)e e!$& (&le "el& %&(& "e ()elo(/ Go%o c&(o e!$e%o (e$i& #o(i'le e ) ()elo(eco !ee$ ) ,)o co(i"e$&'le &ci& l& %)e(!$& (i !ee$ ,)o "e(&li"&/ El c&lc)lo "e = "&$@& = > 0 lo c)&l e+i"e!e%e!e e(ico$$ec!o/ ;&( %)e(!$&( )(&"&( e l&'o$&!o$io ee$&l%e!e (e(&!)$& #&$& e+i!&$ e(!e #$o'le%& &)7)e $ecie!e( i+e(!i&cioe((e & !ei"o e c)e!& co"icioe( "o"e S J 100 K/

2" E3/#5&2"" E67*1&/ 5 8($$#+*(3'#/- A#&$&!o "e #e$%e&'ili"&"- G$oo%e!$o- Te$%%e!$o- Gili"$o $&")&"o- V&$& #e7)e& "e %&"e$& $&")&"&

$el&- A#i(o&"o$- M&)e$&(- Ve$ie$- Piedra porosa- Papel fltro- Arena

2"2" P$&%(9*+*(3'& 9(4 (3/#5&1/ H&ce$ l&( %e"icioe( "e lo( %&!e$i&le( & )(&$ %e"i$ !o%&$ "&!o(

"e l& cel"& & )(&$/ Di9%e!$o #$o%e"io "e l& %)e(!$&: ;"<0 %+- Vol)%e !o!&l "e l& Gel"&: 2"2<= %+- (&%o( 3 c% "e &l!)$& #&$& l& %)e(!$&: V&4: 0;"0> %+

2/ Tee$ l& "e(i"&" "e l& %)e(!$& & )(&$ l& "e(i"&" "el ()elo/



- De(i"&" Sec& "el S)elo: ?@"=! %+ - Go!ei"o "e H)%e"&": @<

3/ G&lc)l&%o( l& "e(i"&" L%e"& "el ()elo

ρd= ρh

1+w

ρh=1.55 g/cm3

4/ co%o & !ee%o( el +ol)%e #o"e%o( &ll&$ l& %&(& 7)e e!$&$&e el $eci#ie!e l& 7)e o( "& &#$oi%&"&%e!e 166 "e %)e(!$&L%e"& $e#&$!i"& e 5 c&#&( "e 33/108 c&"& )&/

4/ A$%&$ el &#&$&!o "e #e$%e&'ili"&" &(!& "o"e (e ece(i!e #&$&coloc&$ el ()elo #&$& e l e(&o/

5 A$%&$ el &#&$&!o/ O$ie!&$ l&( !)'e$@&( "e e!$&"& (&li"&co+eie!e%e!e #&$& l& $ecolecci "e &)& (&!)$&ci "$e&eiici&le(/



6/ Goec!&$ l& e!$&"& "el &)& &l $eci#ie!e "e ()%ii(!$o/ Aco!i)&ci "e&$ (&!)$&$ le!&%e!e l& %)e(!$& #o$ o'(e$+&ci

+i()&l e(!&'ili&$ l& co"ici "e ,)o #e$%i!ie"o 7)e ,)& &)&#o$ ) !ie%#o/ & co!i)&ci ce$$&$ l& +9l+)l& "e e!$&"& (&li"&/

C/ !ili&$ ) $eci#ie!e "e 500 o 1000 %l %&o$ (i e( #o(i'le #&$&$eci'i$ el &)& & l& (&li"& "el #e$%e9%e!$o/ Rei(!$&$ el !ie%#oece(&$io #&$& &l%&ce&$ e!$e C50 B00 %l "e &)&/ Rei(!$&$!&%'i. l& !e%#e$&!)$& "el &)& $e#e!i$ "o( o !$e( +ece( %e"icioe((i%il&$e( &"icio&le( )!ili&"o ) !ie%#o co(!&!e ! > co(!&!e/ ;&c&!i"&" "e &)& $ecoi"& e e(&o( ()ce(i+o( e( "ec$ecie!e e(!o"e'e co(i"e$&$(e e l& "i(c)(i "el i*o$%e/

C/ G&lc)l&$ el coefcie!e "e #e$%e&'ili"&" = )!ili&"o l& le "e D&$c

#$o%e"i&"o lo( $e()l!&"o( o'!ei"o(/ E#$e(&$ lo( $e()l!&"o( ec%?(/



P&$& lo( c9lc)lo( (e !o%& lo("&!o( "e: Tie%#o Te%#e$&!)$&Vol)%e "e &)& "e(&lo&"o l)eo%e"i&!e o#e$&cioe( %&!e%9!ic&(

&ll&%o( lo( "e%9( "&!o(

2"" M(+&$*# 9( %#4%74&- D&!o( !o%&"o( e el

l&'o$&!o$io:

C&3'(3*9& 9(87+(9#9:

<

D(3/*9#9 /(%#9(4 /7(4&:

1/45 ?c%3 Di9%e!$o: 6/C10 $e&: 35/362

T(+1($#'7$#*3*%*#4 C:

1C ; c%> 5 H: 111/5

ENSAYO TIEMPO (

Te%#e$&!)$& G

Vol)%ec%3

T !?20 20

50 16/5 C64/08 0/0213 1/0B15 0/0232

2 50 16/3 C61/00 0/0212 1/0BC1 0/0232

50 16/5 C56/25 0/0211 1/0B15 0/0230

=50 16/C CC4/C1 0/0216 1/085B 0/023

4! 50 16/8 C48/82 0/0208 1/0803 0/022

5; 50 16/B C45/28 0/020C 1/0802 0/022

4< 50 16/B C46/CC 0/0208 1/0802 0/022

5 promed

io

0.02

29

P&$ 4& 67( (4 %&(%*(3'( 9( 1($+(#,*4*9#9 (/ 9( 0"022%+/

2"=" C&3%47/*&3(/ 5 $(%&+(39#%*&3(/

&/ El coefcie!e "e #e$%e&'ili"&" o'!ei"o #o$ c&$& co(!&!e( e(0.0229 cm/s

'/ ;& %)e(!$& "e!$o "el $eci#ie!e e(!9 (&!)$&"& (e co(i"e$& 7)ee(!9 (&!)$&"& & ) 100K/

c/ E(!e e(&o e( (olo #&$& ()elo( $)e(o(/



"/ El &)& 7)e (&l@& e$& "e )& !o&li"&" %&$$ lo 7)e o( i"ic&7)e & fo( e )e(!$o ()elo/

2"!" B*,4*&$#J#"- Qole( o(e# E/ M&)&l "e ;&'o$&!o$io "e S)elo( e

Ieie$@& Gi+il/

INFORME VI Coeficiente de Permeabilidad de Cargacortante

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