tvi resource development (phils), inc. september 2005 1 gossan dam embankment construction late july...
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TVI Resource Development (Phils), Inc. September 2005
1
Gossan Dam Embankment Construction Late July 2005
• Placement of Core Zone Material.
• Placement of Sand Filter Zone and Random Fill Zone Materials.
• Approximately 50,000 m3 of Random Fill to be Placed for Stage 1.
Dam Crest Elev 420 m
Sand Filter Zone
Random Fill Zone
Approximately 80% of the Stage 1 dam completed.
TVI Resource Development (Phils), Inc. September 2005
2
Gossan Dam Embankment Construction
• Water Control and Erosion Control During Rainfall Events.
Protective Covering
Tarps used to cover the clay zone to maintain moisture control and reduce erosion during rainfall.
TVI Resource Development (Phils), Inc. September 2005
3
Gossan Dam Embankment Construction Late August 2005
• Completion of Stage 1 Construction.
• Ready for Tailings Deposition.
• Total Volume of Embankment Material Placed For Stage 1 100,000 m3.
Protective Covering Downstream Face
Dam Crest Elev 425 m
Downstream Toe Elev 400 m
Total dam height Stage 1 = 25 m.
TVI Resource Development (Phils), Inc. September 2005
4
Gossan Dam Embankment Construction Late August 2005
• Upstream Face of Gossan Dam Stage 1.
• Placement of Riprap Layer.
• Preparation for Tailings Placement.
• Available Tailings Storage Volume 75,000 m3
Upstream Dam Toe Elev 405 m
Riprap
Stage 1 Dam Crest Elev 425 m
100% completion Stage 1 construction.
TVI Resource Development (Phils), Inc. September 2005
5
Diversion/Sulphides Dam Construction
• Initial Abutment Excavation For Diversion Dam and Future Sulphides Dam
Canatuan Creek
Future Crest of Sulphides Dam
Construction Cofferdam
Canatuan Creek
The Diversion Dam provides water control for the Gossan Dam for a watershed area of 95 ha.