MMG ROSEBERY MINE - epa.tas.gov.auepa.tas.gov.au/documents/mmg australia limited, 2 5 dam...
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Transcript of MMG ROSEBERY MINE - epa.tas.gov.auepa.tas.gov.au/documents/mmg australia limited, 2 5 dam...
MMG ROSEBERY MINE
FUTURE TAILINGS STORAGE FEASIBILITY STUDY
WATER BALANCE FLOW DIAGRAM
Date: 7/08/2015 Job No: 107031.33 FIGURE 14.1www.atcwilliams.com.au
J:\2007\107031 Rosebery Bobadil FY 07-09\33 Bobadil 2-5 Dam Feasibility Study\Data and Calcs\DMR\LOM Water Balance\Water Balance Report Figures.xlsx Figure 14.1 - Flow Diagram
Date: 7/08/2015 Job No: 107031.33 FIGURE 14.2
MMG ROSEBERY MINE
FUTURE TAILINGS STORAGE FEASIBILITY STUDY
DAILY DECANT DISCHARGE - MINIMUM YEAR CLIMATE CASE
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0
1,000
2,000
3,000
4,000
5,000
6,000
0 1 2 3 4 5 6 7
Decant Discharge (m³/day)
Life of Mine (Years)
Daily Decant Discharge - Minimum Climate Case
Average Daily Discharge per Year
J:\2007\107031 Rosebery Bobadil FY 07-09\33 Bobadil 2-5 Dam Feasibility Study\Data and Calcs\DMR\LOM Water Balance\Water Balance Report Figures.xlsx Figure 14.2 - Decant Dis Min
Date: 7/08/2015 Job No: 107031.33 FIGURE 14.3
MMG ROSEBERY MINE
FUTURE TAILINGS STORAGE FEASIBILITY STUDY
DAILY DECANT DISCHARGE - AVERAGE YEAR CLIMATE CASE
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0
1,000
2,000
3,000
4,000
5,000
6,000
0 1 2 3 4 5 6 7
Decant Discharge (m³/day)
Life of Mine (Years)
Daily Decant Discharge - Average Climate Case
Average Daily Discharge per Year
J:\2007\107031 Rosebery Bobadil FY 07-09\33 Bobadil 2-5 Dam Feasibility Study\Data and Calcs\DMR\LOM Water Balance\Water Balance Report Figures.xlsx Figure 14.3 - Decant Dis Ave
Date: 7/08/2015 Job No: 107031.33 FIGURE 14.4
MMG ROSEBERY MINE
FUTURE TAILINGS STORAGE FEASIBILITY STUDY
DAILY DECANT DISCHARGE - MAXIMUM YEAR CLIMATE CASE
www.atcwilliams.com.au
0
1,000
2,000
3,000
4,000
5,000
6,000
0 1 2 3 4 5 6 7
Decant Discharge (m³/day)
Life of Mine (Years)
Daily Decant Discharge - Maximum Climate Case
Average Daily Discharge per Year
J:\2007\107031 Rosebery Bobadil FY 07-09\33 Bobadil 2-5 Dam Feasibility Study\Data and Calcs\DMR\LOM Water Balance\Water Balance Report Figures.xlsx Figure 14.4 - Decant Dis Max
Date: 7/08/2015 Job No: 107031.33 FIGURE 14.5
MMG ROSEBERY MINE
FUTURE TAILINGS STORAGE FEASIBILITY STUDY
DAILY DECANT DISCHARGE - MAXIMUM YEAR CLIMATE CASE WITH REDUCED TAILINGS PERMEABILITY
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0
1,000
2,000
3,000
4,000
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6,000
0 1 2 3 4 5 6 7
Decant Discharge (m³/day)
Life of Mine (Years)
Daily Decant Discharge - Maximum Climate Case with Reduced Tailings Permeability
Average Daily Discharge per Year
J:\2007\107031 Rosebery Bobadil FY 07-09\33 Bobadil 2-5 Dam Feasibility Study\Data and Calcs\DMR\LOM Water Balance\Water Balance Report Figures.xlsx Figure 14.5 - Decant Dis Max Re
MMG ROSEBERY MINE
FUTURE TAILINGS STORAGE FEASIBILITY STUDY
TAILINGS AND POND WATER ELEVATION WITH TIME - AVERAGE CLIMATE
Date: 7/08/2015 Job No: 107031.33 FIGURE 14.6www.atcwilliams.com.au
140.0
145.0
150.0
155.0
160.0
165.0
170.0
175.0
180.0
0 1 2 3 4 5 6 7
Elevation (m)
Life of Mine (Years)
Tailings and Pond Elevation - Average Climate
Decant Pond Elevation
Tailings Elevation
Embankment Crest
Spillway Crest
J:\2007\107031 Rosebery Bobadil FY 07-09\33 Bobadil 2-5 Dam Feasibility Study\Data and Calcs\DMR\LOM Water Balance\Water Balance Report Figures.xlsx Figure 14.6 - Pond and Tails EL
Date: 7/08/2015 Job No: 107031.33 FIGURE 14.7
MMG ROSEBERY MINE
FUTURE TAILINGS STORAGE FEASIBILITY STUDY
SEEPAGE COLLECTION POND - VOLUME VERSUS TIME
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0
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4,000
6,000
8,000
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14,000
16,000
0 1 2 3 4 5 6 7
Pond Volume (m³)
Life of Mine (Years)
Seepage Collection Pond - Volume Versus Time
Minimum Climate Case Average Climate Case Maximum Climate Case
J:\2007\107031 Rosebery Bobadil FY 07-09\33 Bobadil 2-5 Dam Feasibility Study\Data and Calcs\DMR\LOM Water Balance\Water Balance Report Figures.xlsx Figure 14.7 - Seep Pond Vol
Date: 7/08/2015 Job No: 107031.33 FIGURE 14.8
MMG ROSEBERY MINE
FUTURE TAILINGS STORAGE FEASIBILITY STUDY
SEEPAGE COLLECTION POND - DEPTH VERSUS TIME
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0.0
0.2
0.4
0.6
0.8
1.0
1.2
1.4
1.6
1.8
2.0
0 1 2 3 4 5 6 7
Pond Depth (m)
Life of Mine (Years)
Seepage Collection Pond - Depth Versus Time
Minimum Climate Case Average Climate Case Maximum Climate Case
J:\2007\107031 Rosebery Bobadil FY 07-09\33 Bobadil 2-5 Dam Feasibility Study\Data and Calcs\DMR\LOM Water Balance\Water Balance Report Figures.xlsx Figure 14.8 - Seep Pond Depth
MMG ROSEBERY MINE
FUTURE TAILINGS STORAGE FEASIBILITY STUDY
AVERAGE WIND SPEED (NORMAL AND LOG-NORMAL DISTRIBUTION GRAPH) PLOT
Date: 7/08/2015 Job No: 107031.33 FIGURE 15.1www.atcwilliams.com.au
0
2
4
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8
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1 10 100 1000
Av
era
ge
An
nu
al W
ind
Sp
ee
d f
rom
a N
ort
h W
est
Dir
ect
ion
(k
ph
)
Annual Return Interval (ARI)
West Speed - Normal and Log-Normal Distributions
"Input Data" Log Normal Distribution Fit Line Normal Distribution Fit Line
J:\2007\107031 Rosebery Bobadil FY 07-09\33 Bobadil 2-5 Dam Feasibility Study\Data and Calcs\AM\Design\Figures\Figures.xls FIGURE 15.1
MMG ROSEBERY MINE
FUTURE TAILINGS STORAGE FEASIBILITY STUDY
SPILLWAY INFLOW - OUTFLOW HYDROGRAPH
Date: 7/08/2015 Job No: 107031.33 FIGURE 15.2www.atcwilliams.com.au
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10
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0 5 10 15 20 25 30 35 40
Dis
ch
arg
e (
m3/s
)
Time (hrs)
3 hr Inflow - Outflow Hydrograph
Outflow
Inflow
Peak Outflow = 23.4 m³/s
Flow Depth = 0.77 m
Freeboard at Peak Outflow = 0.23 m
J:\2007\107031 Rosebery Bobadil FY 07-09\33 Bobadil 2-5 Dam Feasibility Study\Data and Calcs\AM\Design\Figures\Figures.xls FIGURE 15.2
MMG ROSEBERY MINE
FUTURE TAILINGS STORAGE FEASIBILITY STUDY
PERMANENT POND DEPTH - CLEAN WATER DIVERSION DRAIN RETAINED AT CLOSURE
Date: 16/06/2015 Job No: 107031.33 FIGURE 18.2www.atcwilliams.com.au
168.00
168.50
169.00
169.50
170.00
170.50
171.00
171.50
172.00
172.50
173.00
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Pond Depth (m)
Life of Mine (Years)
Pond RL (mean) - 2.0E-8 Permeability
Pond RL (mean) - 6.0E-8 Permeability
Pond RL (mean) - 1.1E-7 Permeability
Pond RL (mean) - 2.0E-7 Permeability
Tailings Level
Spillway Invert
Embankment Crest
2m water depth
J:\2007\107031 Rosebery Bobadil FY 07-09\33 Bobadil 2-5 Dam Feasibility Study\Data and Calcs\DMR\Closure Water Balance\Case 3 - Wet Closure\Wet Closure Figures.xlsx Figure 18.2 Pond RL W Diversion
MMG ROSEBERY MINE
FUTURE TAILINGS STORAGE FEASIBILITY STUDY
PERMANENT POND DEPTH - CLEAN WATER DIVERSION DRAIN BREACHED AT CLOSURE
Date: 16/06/2015 Job No: 107031.33 FIGURE 18.3www.atcwilliams.com.au
168.00
168.50
169.00
169.50
170.00
170.50
171.00
171.50
172.00
172.50
173.00
0 20 40 60 80 100 120
Pond Depth (m)
Life of Mine (Years)
Pond RL (mean) - 6.0E-8 Permeability
Pond RL (mean) - 1.1E-7 Permeability
Pond RL (mean) - 2.0E-7 Permeability
Tailings Level
Spillway Invert
Embankment Crest
2m water depth
J:\2007\107031 Rosebery Bobadil FY 07-09\33 Bobadil 2-5 Dam Feasibility Study\Data and Calcs\DMR\Closure Water Balance\Case 3 - Wet Closure\Wet Closure Figures.xlsx Figure 18.3 Pond RLNo Diversion
Date: 16/06/2015 Job No: 107031.33 FIGURE 18.4
MMG ROSEBERY MINE
FUTURE TAILINGS STORAGE FEASIBILITY STUDY
SPILLWAY FLOW k = 1.1E-7 m/s, CLEAN WATER DIVERSION DRAIN BREACHED AT CLOSURE
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Spillway Flow (m³/day)
Life of Mine (Years)
Diversion Drain Breached CaseTailings Permeability = 1.1E-7
J:\2007\107031 Rosebery Bobadil FY 07-09\33 Bobadil 2-5 Dam Feasibility Study\Data and Calcs\DMR\Closure Water Balance\Case 3 - Wet Closure\Wet Closure Figures.xlsx Figure 18.4 Spillway Flow
