1

AP

PE

ND

IX

2

PR

OJE

CT

F

INA

L

PR

ES

EN

TA

TIO

N

08/2

1/1

3

Min

e T

aili

ngs M

ass F

low

Stu

dy

A C

arl

so

n S

oft

ware

Ap

pro

ach

Ph

oto

s b

y A

. F

ou

rnie

r

3

Intr

od

uction

•N

am

e: A

nto

ine

Fo

urn

ier

•U

niv

ers

ity: M

cG

ill U

niv

ers

ity

•D

egre

e: M

inin

g E

ng

ine

erin

g C

o-o

p

•E

xp

ecte

d g

rad

ua

tio

n d

ate

: 0

6/1

5

•P

ositio

n T

itle

: A

ssis

tan

t m

ine

eng

ine

er

•D

ep

art

me

nt: M

inin

g E

ng

ine

eri

ng

•S

up

erv

isor/

Ma

na

ger

Na

me: R

ob

ert

Pri

de

•W

ork

Loca

tion

: M

arb

le F

alls

, T

exas

•P

roje

ct T

itle

: M

ine

Ta

ilin

gs M

ass F

low

Stu

dy

4

Obje

ctives a

nd d

eliv

era

ble

s

•A

ll m

ines f

ace a

pro

ble

m: ta

ilings

•D

ete

rmin

e t

aili

ngs;

Octo

ber

200

7 t

hru

July

31 2

01

3

•W

here

to s

tore

?

•H

ow

lo

ng is it goin

g t

o last

?

•A

t w

hat

rate

is it

pouri

ng?

•W

hat

are

the c

onse

quence f

or

life o

f m

ine p

lan

nin

g?

5

Ele

ments

of S

olu

tion

•D

ete

rmin

e e

levations o

f sedim

en

t acro

ss the p

ond f

or

grid

•C

alc

ula

te v

olu

me u

sin

g C

arlson m

inin

g s

oftw

are

•D

ete

rmin

e p

rod

ucti

on

rate

(to

ns c

rush

ed

/ye

ars

)

•C

alc

ula

te p

ort

ion o

f pro

duction e

ffecting t

aili

ngs

•D

ete

rmin

e t

aili

ng d

ep

ositio

n r

ate

•D

ete

rmin

e M

ass D

ensity o

f ta

iling

s

6

Initia

l findin

g 2

01

1

7

FIN

ES

ST

OR

AG

E W

OR

KS

HE

ET

Init

ial

Fin

din

gs

Ro

be

rt P

rid

e 2

01

1

8

Taili

ng

s P

oin

ts

...

..

9

Challe

nges

•A

eri

al surv

eys s

ho

w o

nly

wa

ter

leve

l (n

ot se

dim

ent le

ve

l)

•F

ind

su

bm

erg

ed

se

dim

en

t le

ve

l

•N

ot p

ossib

le to

ge

t p

oin

ts in

th

e m

idd

le (

ha

ve

to

ap

pro

xim

ate

)

•C

rea

te a

gri

d fo

r 2

007

when

min

ing

be

ga

n

•W

ate

r le

ve

l is

ne

ver

co

nsta

nt, h

ard

to

dra

w c

on

tact lin

e

10

Taili

ng p

on

d g

rid

Blu

e =

Fill

Re

d =

Cu

t

11

Min

e p

rod

uction s

chedule

sum

mary

Eff

ective T

ons

Eff

ective T

ons =

only

tons e

ffe

cting t

aili

ngs

12

13

Result / C

alc

ula

tion S

um

mary

•23,9

23,7

18

cubic

foot of sedim

ent (f

rom

Carlson)

•23,9

80,7

81

tons o

f ro

ck e

ffecting taili

ngs (

from

pro

duction s

chedule

)

•1 ton o

f ro

ck 1 c

ubic

foot of sedim

ent 1

.0 :1.0

•D

ensity f

or

rock is a

ppro

xim

ate

ly 1

65

lb/c

u ft

•D

ensity o

f w

et sedim

ent

is 8

8.8

lb/c

u ft

BY

VO

LU

ME

•F

rom

density o

f ro

ck w

e h

ave 2

90, 676,1

33

cubic

foot of ro

ck

•F

rom

Carlson w

e h

ave 2

3,9

23,7

18 c

ubic

foot of sedim

ent

•T

hus c

u ft of sedim

ent =

8.2

5%

cu ft eff. cru

shed tons

BY

WE

IGH

T•

Fro

m v

olu

me r

eport

there

is 1

,062,2

13.1

1to

ns o

f sedim

ent

•F

rom

pro

duction s

chedule

there

is 2

3,9

80,7

81

eff. to

ns o

f ro

ck

•T

ons o

f sedim

ent =

4.4

%eff

. cru

shed tons

•S

well

facto

r ta

iling’s

fin

es w

ith w

ate

r =

1.6

7(a

dditio

nal stu

dy f

or

benefits

)

Initia

l ta

ilings s

am

plin

g n

ear

surf

ace

14

Opp

ort

unitie

s

•S

up

ply

min

e p

lan

nin

g w

ith

da

ta fo

r lif

e o

f m

ine

•P

rovid

e a

ssis

tan

ce

to m

inin

g c

on

tracto

r

•E

limin

ate

un

kn

ow

ns for

recla

ma

tio

n p

lann

ing

•Id

en

tify

an

y n

ew

are

as fo

r cost sa

vin

gs fro

m s

tud

y

•O

ffer

che

mic

al p

rop

ert

ies fo

r fu

ture

op

po

rtu

nity (

ne

eds s

tud

y)

15

Va

rio

us S

tora

ge

Pla

ces

Su

m T

ota

l T

his

Co

nce

pt

to 2

03

1

16

Additio

nal ta

sks c

om

ple

ted

GP

S m

ine s

urv

ey

Supply

dri

ll o

pera

tors

with d

rill

depth

Carlso

n m

ine s

oft

ware

Mass d

ensity m

easure

ments

Qualit

y c

ontr

ol (Q

C)

Lab a

ssis

tance

17

QU

ES

TIO

NS

?