quarry hazard appraisal

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Quarry Hazard Appraisal Group D – SW Sector

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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

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Page 1: Quarry Hazard Appraisal

Quarry Hazard AppraisalGroup D – SW Sector

Page 2: Quarry Hazard Appraisal

The Quarry

Page 3: Quarry Hazard Appraisal

The South-West Sectors

3

4

2

1

Page 4: Quarry Hazard Appraisal

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

Page 5: Quarry Hazard Appraisal

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

Page 6: Quarry Hazard Appraisal

Sector 3

Page 7: Quarry Hazard Appraisal

Pictures