Carga y Detonacion de Agujeros

7/21/2019 Carga y Detonacion de Agujeros

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UNIVERSIDAD NACIONAL DE MOQUEGUA ASIGNATURA: TUNELES Y MOVIMIENTO DE TIERRAS CARRERA PROFESIONAL DE INGENIERIA DE MINAS

EJEMPLO PRCTICO

Determinar el nmero de cartuchos por taladros de una galera en roca dura, segn

los siguientes datos adicionales y tambin ver la figura:

Barrenos de 5 pies

Dimetro del barreno 35 mm !"

#$plosivos dinamita e$a de %&' $ %(

)eso del cartucho: '* gr&cartucho

#nerga por cartucho +** caloras&gr

#sfuer-o de comprensi.n simple de la roca / +'** 0g&cm1

2endimiento del avance 5 4

Distancia entre taladros de cortea": '* mm

ongitud del tnel +** m

)eso especifico desmonte : 675

)eso especifico mineral: 37%

8actor de rea para mineral: 54

8actor de espon9amiento +73* ton mineral, ton desmonte"

+ pie / 3*7' cm

DOCENTE: ING. MARCOS QUISPE PEREZ Pgina 1


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+7 ;rea total

y=3751000

x +0.589

A1=1.25

1.25

(0.375x2+0.589 ) dx

A1=|0.375x 3 +0.589x|1.251.25

A1=[0.375(1.25)

3 +0.589(1.25)][

0.375(1.25) 3

+0.589 (1.25)]

A1=[0.7324218753 +0.73625][ 0.7324218753 0.73625]

DOCENTE: ING. MARCOS QUISPE PEREZ Pgina


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A1=[0.7324218753 +0.73625][ 0.7324218753 0.73625]

A1=[0.244140625+0.73625 ][ 0.2441406250.73625 ]

A1=[0.492109375 ][0.492109375 ]

A1=0.98421875

< $ +m" ? ) $ $ +m $ *75"@7+73*"675 =on&mA"

=d/>< $ longitud de tnel ? *75 ) @ mA7 3765 =on&mA

=onelada de ineral

DOCENTE: ING. MARCOS QUISPE PEREZ Pgina !


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=m/potencia"longitud de veta"factor rea"longitud tnel"factor espon9amiento"

gravedad especfica mineral roto"

=m/ ) $ $ *75 $ long7 =nel $ +73* $ 37% =n&mA

=m/ ) $ $ 75C5 ton7 ineral roto


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ECUACION DE LA RECTA

Y=mx+b b=0=Y=mx

PERO L // AE

Y=EF

AFx +b

Y=(AB+AF )x+b

Y=(1.2141+0.589

2.5

2 )x+0.589

Y=(1.44248

)x+0.589

Ki Y=0=HG

* / +76' $ L *75'

MH / $+ / *7*'36556


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POTENCIA2IG=2(0.335573122) POTENCIA0.671146244=IJ


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x1=0.27921932

0.75 x2=

3.164179320.75

x1=0.372292426 x2=4.21890576

F)2FB


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0.8416754480.372292426()

L=

L=(1.213967874 ) +(1.751124378)

L=1.473717999+3.066436587

L=4.540154586

L=2.13076385

=onelada de ineral en + metro de profundidad"

=m/ ) $ $ 75C5 ton mineral roto&mA

Tm=0.671146244x 2.13076385x 4.5695Tn/m

Tm=6.53463246tn rotas

m

#n +** metros de profundidad

Tm=6.53463246tn rotas

m x 100m

Tm=653.463246 tnrotas

=onelada de desmonte en + metro de profundidad"

Td=[A x longt!d" d" t!n"l #0.95P L]m .3.25 Ton /m

DOCENTE: ING. MARCOS QUISPE PEREZ Pgina &


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(4.0194687x1)#m .3.25Ton /m Td=

Td=[2.660917253]m .3.25 Ton /m

Td=8.647981072 Ton

1md" $ro%!nddad

#n +** metros de profundidad

Td=8.647981072 Ton

1 md" $ro%!nddadx 100 m

Td=864.7981072 ton

2atio:

&ato=Td

Tm

&ato=864.7981072

653.463246

&ato=1.323407418

.' D()(*+ina,i-n (/ n0+(* ( ,a*)2,34

Pa4 1:clculo del esfuer-o de tracci.n

'(='t+280 )g/(m

21



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't='(280)g /(m

21

't=(1800280))g /(m

21

't=72.3873 )g /m

Pa4 :clculo de la energa Qumica en caloras reQueridas

*=F x " + + + (1 )'t=F

A+ + + (2)

Despe9ando 6"

F=' t . A + + +(3)

2eempla-ando 3" en +"

*=(' t . A )x "

*=F!"r,a d" traba-o )gm

' t=Es%!"r,o d" latra((n ()g /(m )

"=longt!d d" taladro((m)(a/an("r"al)

*=(73 )g(m2 )x (4.0194687 m2x(100(m2)

1 m )x (")



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"=50x 12 x 2.54=152.4 cm x 0.95=144.78 cm

*=

(73

)g

(m2

)x (40194.687(m2 )x

(144.78 (m x

1 m

100 (m

)*=4248152.352()gm)

onvercion

1

)gm0.009806651J1

1J0.23884591(al

1

)gm2.342278145x102

31(al

1

1(al1000(al

1)gm2.342278145 (al

*=4248152.352()gm)x 2.345(al

1()gm)

*=9961917.265 (aloras

Pa4 !:clculo del numero de cartuchos

aloras por cartucho

(80x gr(art!(3o )x(1400x(alorasgr )=112000 (aloras(art!(3o



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N 4 (art!( 3 os= *

(aloras /(art!( 3o

N 4 (art!( 3 os= 9961917.265 (aloras112000 (aloras/(art!( 3 o

N 4 (art!( 3 os=88.9456(art!(3os

Pa4 ":factor de carga 0g e$plosivo & metro lineal taladro"

Kegn longerfords

L=1.5x103( a )1.5

.(a2 )

/ factor carga en 0g&m

a / distancia entre taladros de corte

!/ dimetro de taladro en mm

L=1.5x103( 80 mm35 mm )1.5

.(80 mm #35 mm2 )

L=0.3239695483 )g /m

Pa4 #:calculo carga total& taladro

Cargatotal=L x "



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L=%a(tor d"(arga

"=longt!d d" taladro "n m"tro(1.4478m)

Cargatotal=(0.3239695483 )gm)x (1.4478m / tal)

Cargatotal=0.469043112)g

talx1000 gr

1)g

Cargatotal=469.043112 gr

/tal

Pa4 $:GR de cartuchos & taladro

(art!(3os= (arga total

$"so d"l (art!( 3 o

(art!(3os=469.043112gr / tal80 gr /(art!(3o

(art!(3os=5.866(at!(3os / taladro

Pa4 %:clculo del S taladros

taladros=PE+1 . 5

P=$"rm" d" la s"((on

E=ro(ad!ra (0.5)

1=2

5=ar"ad"l %r"nt"

DOCENTE: ING. MARCOS QUISPE PEREZ Pgina 1!


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y=3751000

x +0.589

/ longitud de arco

LC=20

1.25

1+(y 0)dx

LC=20

1.25

1+[ (0.375x2+0.589 )0] dx

LC=2

0

1.25

1+[0.75x+0 ] dx

LC=20

1.25

1+[0.75x+0 ] dx

LC=20

1.25

1+0.5625x dx

LC=20

1.25

(1 )2+(0.5625x) dx

DOCENTE: ING. MARCOS QUISPE PEREZ Pgina 1"


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P* )a7/a

a +! d!=! .a +! 2

+a

2ln [ !+a +! ]

S24)i)2,i-n

0.5625x=!

0.75dx=d!

dx= d!

0.75

LC=20

1.25

((1 )2+(!) ) d!0.75

LC=2{ ! .1+! 2 + 1 2 ln [ !+1 +! ]0.75

}

LC=2

({[(0.5625 .(1.25)) .1+(0.5625 ) . (1.25 )2 ]+ 12 ln [(0.5625. (1.25 ))+1+(0.5625 ) . (1.2

0.75

LC=2({[(0.9375 ) .1+(0.87890625 )2 ]+ 12 ln [(0.9375 )+1+(0.87890625 )]}

0.75 )

DOCENTE: ING. MARCOS QUISPE PEREZ Pgina 1#


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LC=2

({[(0.9375 ) . (1.370732012 )2 ]+ 12 ln [0.9375+1.370732012 ]}

0.75

)LC=2({[ 1.2850612612 ]+ 12ln [2.308232012 ]}

0.75 )

LC=2({0.6425306306

+

0.8364818687

2

}0.75 )LC=2{0.6425306306+0.41824093440.75 }LC=2 {1.414362087 }

LC=2.828724173

)ermetro )"

P=(2.5x2 )+(1.2141x2 )+2.828724173

P=5+2.4282+(2.828724173 )

DOCENTE: ING. MARCOS QUISPE PEREZ Pgina 1$


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P=10.25692417

taladros=P

E+1 . 5

taladros=10.25692417

0.5 +2 (4.0194687 )

taladros=20.51384835+8.0389374

taladros=28.55278575

taladros=29

I+ag(n !. Di4)*i72,in ( )a/a*4

FUENTE: A*,3i84 ( (9a


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Carga y Detonacion de Agujeros