2008-04-15_REVISION - M1980244 ‎(197)‎

• Permit No: M1980244
• IBM Index Class Name: REVISION
• Doc Date: 4/15/2008
• Doc Name: VOL IV APP 5 Attachment 3 Wildhorse Extension Mine Slope Design
• From: CC & V
• To: DRMS
• Type & Sequence: AM9
• Media Type: D
• Archive: No

• TableofContents AdrianBrown
6.3.1 Hoek and Bray Method .................................12
6.3.2 Sliding Wedge Method .................................13
6.4 Results .....................................................................13
6.4.1 Northeast ......................................................14
6.4.2 Southeast .....................................................15
6.4.3 West .............................................................15
6.4.4 North .............................................................16
7. BENCH DESIGN AND CONSTRUCTION ..........................18
7.1 Single Benching .......................................................18
7.2 Vertical Bench Faces ...............................................18
7.3 Bench Design Details ...............................................18
• 7.4 Wall Excavation ........................................................19
8. REFERENCES ...................................................................21
ListofTables
Table 1. Point Load Test Results ....................................................5
Table 3. Uniaxial Compressive Strength Test Results .....................5
Table 4. Hoek-Brown m; Test Results .............................................5
Table 5. Approximate Classification of Rock ...................................6
Table 7. Mohr-Coulomb Shear Strength Test Results .....................?
Table 9. Rock Mass Rating System (Bieniawski, 1989) ................11
Table 10 -Simple Wedge Sliding Evaluation -WHEX ..................13
Table 12. Summary of Slope Design Results ................................14
Table 14 -Bench Designs for WHEX Walls ..................................19
ListofPlates
Plate 1 -Borehole Location And Joint Orientations
Plate 2 -Slope And Bench Designs
• Plate 3 -Details Of Single Bench Designs For WHEX Slopes
Plate 4 -Schematic Wall Blast Pattern - 60° Slope
Report 1385L.200309017 ii