REV92631

• Permit No: M1980244
• IBM Index Class Name: Revision
• Doc Date: 2/14/1996
• Doc Name: CRESSON PROJECT PN M-80-244 PROCEDURES AND MATERIALS FOR 1196 CONSTRUCTION CLARIFICATION OF MODIFICA
• From: CRIPPLE CREEK & VICTOR GOLD MINING CO
• To: DMG
• Type & Sequence: TR20
• Media Type: D
• Archive: No

* * * * * DEFAULT SEGMENT LENGTH SELECTED BY XSTABL * *
Length of line segments for active and passive portions of
sliding block is 87.0 ft
Box x-left y-left x-right y-right Width
no. (ft) (ft) (ft) (ft) (ft)
1 1317.5 9304.5 1317.5 9304.5 .0
2 1497.5 9245.5 1497.5 9245.5 .0
3 1538.0 9245.5 1538.0 9245.5 .0
4 1690.0 9250.5 1690.0 9250.5 .0
5 1880.0 9260.5 1880.0 9260.5 .0
6 1881.0 9260.5 2142.5 9365.5 .0
Factors of safety have been calculated by the
* * * * * SIMPLIFIED JANBU METHOD *
The 10 most critical of all the failure surfaces examined
are displayed below - the most critical first
Failure surface No. 1 specified by 11 coordinate points
Point x-surf y-surf
No. (ft) (ft)
1 1316.81 9305.00
2 1317.50 9304.50
3 1497.50 9245.50
4 1538.00 9245.50
5 1690.00 9250.50
6 1880.00 9260.50
7 2141.96 9365.28
8 2142.48 9366.00
9 2179.25 9444.85
10 2216.02 9523.70
11 2240.96 9577.18
** Corrected JANBU FOS = 1.612 **. (FO factor = 1.074)
Failure surface No. 2 specified by 11 coordinate points
Point x-surf y-surf
No. (ft) (ft)
1 1316.81 9305.00
2 1317.50 9304.50
3 1497.50 9245.50
4 1538.00 9245.50
5 1690.00 9250.50
6 1880.00 9260.50
7 2142.46 9365.48