UNIVERSIDAD NACIONAL DE MOQUEGUA FACULT FACULTAD DE INGENIERIAS INGENIERI AS ESCUELA PROFESIONAL DE INGENIERIA DE MINAS
INFORME DE LABORATORIO-PRACTICA 1-2-3 CURSO: MECANICA DE ROCAS I DOCENTE: ING.MARCOS LUIS QUISPE PEREZ ALUMNO: DAVID CASILLA SOTOMAYOR
CICLO: 2013103039 IV Moqu!u" # P
%$ INTRODUCCION E& ' (&)o$* + ,$+&-" /+("*&- 'o+ &+"o+ (+,o&('+ & ' L"o$"-o$(o M/&(" Ro"+ '" F"u'-" I&!&($" M(&"+4 ,"$" -$*(&"$ '"+ ,$o,("+ "$"-$+-("+ (*,o$-"&-+ *u+-$"+ $o"+4 qu +$/& u+""+ ,"$" )(&+ ,$o,(o+ '" (&!&($" & !&$"'4 " +" & $'"(5& " '" (&!&($" (6(' ,"$" '" o&+-$u(5& -%&'+4 (*&-"(o&+ +-"('(7"(5& -"'u+4 o*o & '" (&!&($" *(&"+ o !o'5!("4 & ' u"' '" */&(" $o"+ 8" +(o o&+($"" -$"((o&"'*&- o*o u& "+u&-o '(!"o ,$(*o$("'*&- " '" +!u$("4 'o qu + *u (*,o$-"&- ,"$" '" $u(5& "" $o"+4 6(-"&o o *(&(*(7"&o 'o+ "o+ "' ,$+o&"' " 'o+ qu(,o+4 o*o -"*(& + (&)'u&- & 'o+ "+,-o+ o&5*(o+ '"+ o,$"(o&+ *(&$"+.
DETERMINACION DEL CONTENIDO DE HUMEDAD Y DENSIDAD OBJETIVO E+-" ,$/-(" -(& o*o ,$o,5+(-o: 1.; ",$&$ 'o+ *-oo+ ,"$" '" o-&(5& '" 8u*" &"-u$"' &+(" 'o+ *"-$("'+. 2.; C","(-"$+ & ' *"&
="'"&7" M/&(" '-$5&(" V$&($ P$o-"+ C/,+u'"+ &o$*"'(7""+ >o$&o '-$(o Co(&" '-$("
•
D u&" $o" 8*o+ +""o '" *u+-$" ,"$" &u+-$o -$""
•
S!u("*&-4 '" *u+-$" 8*o+ *(o o& qu(,o 6$&($ ,"$" o$-"$4 o& '" o$-"o$" FELBER =AY STATE DRESSER4 -&$ *u8o u("o o& +-" */qu(&".
U&" 67 o$-"o '" *u+-$" '" $o" 8*o+ *(o +u ,+o & '" "'"&7" '-$("4 +,u+ 8*o+ $*o<"o o& "!u" '" *u+-$" u$"&- *(" 8o$" ,+"*o+ '" *u+-$" & '" "'"&7" '-$(" +,u+ ''6"*o+ "' 8o$&o '-$(o QUINCY LA= INC. Mo'o 21;3?0;1 ,o-&(" 2110 6o'-"< 2306 "*,$(o 9.1 8*o+ -$""<"o " 300C u$"&- *(" 8o$" +,u+ &u6o 8*o+ *(o +u ,+o & '" "'"&7" '-$(".
a) Dete!"#a$"%# &e 'a H(!e&a& L" -$*(&"(5& o&-&(o 8u*" + u& &+"o $u-(&"$(o '"o$"-o$(o ,"$" -$*(&"$ '" "&-(" "!u" ,$+&- & u&" *u+-$" $o" & -$*(&o+ +u ,+o & +o + )(& o*o:
W W
=
W h
−
W S
Donde: -WW es la diferencia entre peso húmedo –
W
=
W W W S
*100
) Dete!"#a$"%# &e 'a De#*"&a& L" -$*(&"(5& '" &+(" +-/ $,$+&-"" ,o$:
Densidad
Peso.de.la.muestra( gr ) =
3
Volumen .muestra.(cm )
1+ Dete!"#a$"%# &e 'a H(!e&a& N,
Caa$te*t"$a*
M(e*ta 1
1
P+o $(,(&-
0.00
2
P+o $(,(&- *u+-$" 8%*"
1?2.1 !$
3
P+o $(,(&- *u+-$" +"
1?0.? !$
P+o *u+-$" 8%*" 2;1H
1?2.1 !$
?
P+o *u+-$" +" 3;1H
1?0.? !$
.
H(!e&a& /
1+0 /
H(!e&a& P,!e&", &e 'a R,$a /
1+03/
2+ Dete!"#a$"%# &e 'a De#*"&a& 2+1) F"(a Re('a No
Caa$te*t"$a*
M(e*ta 1
1
P+o '" *u+-$" +" & !$"*o+
193.9 !$
2
Vo'u*& '" *u+-$" & *3
@. *3
3
D&+(" γ H !$J*3 1 J 2 H
2.2 !$J*3
D&+(" P$o*(o Ro" !$J*3H
2.2 !$J*3
2+2) F"(a Ie('a N,
Caa$te*t"$a*
M(e*ta 1
1
P+o '" *u+-$" +" & !$"*o+
9?.1 !$
2
Vo'u*& "!u" +,'"7"o *3
? *3
3
D&+(" γ H !$J*3 1 J 2 H
2.11 !$J*3
D&+(" P$o*(o Ro" !$J*3H
2.11 !$J*3
DETERMINACION DE VOLUMEN DE POROS4 POROSIDAD Y ABSORCI5N OBJETIVO E+-" ,$/-(" -(& o*o ,$o,5+(-o: 1.; ",$&$ ' *-oo ,"$" '" o-&(5& '" ,o$o+(" u&" *u+-$" $oo+". 2.; C","(-"$+ & ' *"&
EQUIPOS ;
="'"&7" M/&(" Jo '-$5&("
; ; ; ;
>o$&o '-$(o V$&($ S"o$ *u+-$"+ O-$o+
E6POSICI5N GENERAL
a) Dete!"#a$"%# &e' V,'(!e# &e P,,* 7 P,,*"&a& &e (#a M(e*ta R,$,*a L" ,o$o+(" + u& o&
FORMULAS8 V,'(!e# &e P,,*
V v
Donde:
M sa t M s −
=
Msat , MS,
ρ w
es el peso de la muestra saturada
es el peso de la muestra seca
ρ w
, es la densidad del agua
P,,*"&a&
n
=
P,$e#ta9e &e A*,$"%#
Vv *100 % V
E+ '" "&-(" "!u" qu 'o+ ,o$o+ '" $o" ,u& "+o$$ K,$+"o & ,o$&-"<.
Donde: W =
M − M sat s M s
*100 Msat ,
es el peso de la muestra saturada Ms,
es el peso de la muestra
seca
PROCEDIMIENTO
S -o$&"& 3 ,$o-"+ $,$+&-"-(6"+ ' *"-$("' & )o$*" ('(&$o+ $-o+. E' -"*"o *&(*o "" ,$o-" +$ -"' qu +- ,+ ,o$ 'o *&o+ ?0 !. E' 6o'u*& V ' ('(&$o + "'u'" ,$o*("&o 6"$("+ *("+ $"'(7""+ o& ' 6$&($. L" *u+-$" + +"-u$" *("&- (&*$+(5& "!u" & 6"(5 *&o+ @00 P" u$"&- u&" 8o$" "!(-"&o ,$(5("*&- ,"$" qu(-"$ ' "($ "-$","o. A o&-(&u"(5& + +" '" +u,$)(( '" ,$o -"4 u-('(7"&o u& -$",o 8%*o. E& +- *o*&-o + -$*(&" ' ,+o '" *u+-$" +"-u$"" MSAT. D+,u+ + +" '" ,$o-" " 10?C + $)$(!$" u$"&- 30*(&u-o+ & u& +"o$4 -$*(&"&o ' ,+o '" *u+-$" +"4 MS. S( '" $o" + )$("'4 8"$/ qu u-('(7"$ )u&"+ ,"$" qu &o + +8"!" u$"&- ' &+"o.
N,
Caa$te*t"$a*
M(e*ta 1
1
P+o '" *u+-$" +"-u$"" !$H
19@.?9 !$
2
P+o *u+-$" +" !$H
1@.2 !$
3
D&+(" "!u" !$J*3H
1 !$J*3
Vo'u*& ' ('(&$o *3H
@. *3
?
Vo'u*& Po$o+ 1;2HJ3H
11.3 *3
P,,*"&a& ::;<=)>100)
13.0
A*,$"%# / :::1-2)<2)>100)
+0= /
DETERMINACION DE LAS PROPIEDADES MECANICAS DE LAS ROCAS4 MEDIANTE METODOS INDIRECTOS8
ENSAYOS DE TRACCI5N8 METODO BRASILE?O
O=ETIVO E+-" ,$/-(" -(& o*o ,$o,5+(-o: 1.; ",$&$ 'o+ ()$&-+ *-oo+ ,"$" o-&$ -$*(&"$ '"+ ,$o,("+ */&("+ '"+ $o"+. 2.; D-$*(&"$ '" $+(+-&(" " '" -$"(5& " '" o*,$+(5& u&" *"&$" (&($-" ,$o *u +(*,'. 3.; C","(-"$+ & ' *"&
Equ(,o "$!" ,u&-u"' P$&+" 8($/u'(" M/qu(&" o$-"o$" $o" V$&($ >o$&o '-$(o O-$o+
a) E#*a7,* &e ta$$"%# EK(+-& o+ *"&$"+ $"'(7"$ +- &+"o +o&:
1) E#*a7, &e ta$$"%# "#&"e$ta , M@t,&, Ba*"'e,8 Co&+(+- & o-&$ *u+-$"+ ('&$("+ & )o$*" (+o+4 & ' u"' + ",'(" u&" )u$7" o& ' )(& -$*(&"$ ' o$- "K("'.
P D
D L
≥ 2
L
P
σ t
=
C"$"-$+-("+
Donde:
2 P
-σt = Esfuerzo de tracción
π DL
Kg/cm2
Mu+-$" 1 1
2
3 3.@
Mu+-$" 2 ,$o* 3.@
1
2
3
P$o*
3.@
3.@
3.@
3.@
D(/*-$o *H
3.@
3.@
A'-u$" *H
1.
1.? 1. 1. 1.@0 1.@ 1.0 1.
C"$!" A,'("" B!JH
?30 !
3@0 !
E+)u$7o -$"(5&
?0.? !J*2
33.32 !J*2
N DESCRIPCION
DIAMETRO C!
LONGITUD C!
FECHA ROTURA
CARGA
RESISTENCIA
<$!2
Ma
1
Ro" $(o'(-"
3.@
1.
02J10J201?
?30
?0.?
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2
Ro" $(o'(-"
3.@
1.
02J10J201?
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PROMEDIO
CONCLUSIONES
P"$" qu ' &+"o $"+('o +" ",-"o4 ' ,'"&o $o-u$" -&$/ qu +$ "+( ,"$"''o "' E< "K("' '" *u+-$"4
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