REV89630

• Permit No: C1996083
• IBM Index Class Name: Revision
• Doc Date: 3/1/2004
• Doc Name: South Permit Boundary Rockfall Hazard Evaluation Project No. 24-004
• Type & Sequence: TR31
• Media Type: D
• Archive: No

ical Analysis - D:\Yeh Public files\2004\24-004 Bowie Mine Rockfall 2\Rockfall S 11-S 14 Jan 04\CRS]
Analysis Point 2
Analysis Point 2: X = 1800, Y = 6444
Spherical Rock: 5-ft dia., 10145-Ib
Total Rocks Passing Analysis Point: 60
Cumulative Probability Velocity (ft/secl Energ~(ft-]bl Bounce Height (ft?
50% 49.83 543490 0.26
75% 53.22 615645 3.51
90% 56.26 b80544 ° 6.44
95% 58.09 719507 8.19
98% 60.14 763236 10.17
Note: Velocity and kinetic energy are analyzed assuming a normal distribution.
Bounce height is analyzed assuming a log distribution.