quarry hazard appraisal
Post on 24-Feb-2016
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Quarry Hazard Appraisal. Group D – SW Sector. The Quarry. The South-West Sectors. 4. 3. 2. 1. Sector 3. Excatavion side Will be extended over the next production cylces Bench hights 10.12 m with an over all slope Angle of 45 ° and a face angle of 23° - PowerPoint PPT Presentation
TRANSCRIPT
Quarry Hazard AppraisalGroup D – SW Sector
The Quarry
The South-West Sectors
3
4
2
1
Sector 3
• Excatavion side• Will be extended over the next production cylces• Bench hights 10.12 m with an over all slope
Angle of 45° and a face angle of 23°• Bench width is approx. 30 m to enable save
working space for heavy machinery• Rocktraps secure man and machinery from
potential rockfall – sufficient size
Sector 3 Hazards
• Dominant Joint intersect with blasting pattern• Secondary jointing runs 35° to it– This can cause smal scale wedges
• Water runoff can increase possible rockfall
Sector 3
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