PERMFILE121286

• Permit No: C1981025
• IBM Index Class Name: Permit File
• Doc Date: 12/11/2001
• Doc Name: Subsidence at North Thompson Creek Mine
• Section_Exhibit Name: 4.0 Appendix 4-H
• Media Type: D
• Archive: No

•

CONSTRIICTIO'J Nl)TfS:
1. Uirt. and loose rock cleaned away
frnm bate of monwuenl..
2. kook holt.s driven Lo refusal
with 12-1b sledge. Miniwuni of
12 inches, Ariven inLu yruunA.
Tk1VET PLATE: H in by Y, in by n.'/5 ire
~.teel plate drilled to mate with
Wild Gl'I-1 Trivc~t•..
COUPLING: 2-in, mediwn lhir.knes~,.
Spot. welded to trivet. plate.
STI'.ND PIPE: Schedule YO •,teel, 7-in
inside Aiameter, 6-tt lenyth.
3. Gruund treated with concrete
patching compound to insure
adhesion between ground and
concrete pylon.
4. Stand pipe backfilled wikh mortar
5. Trivet plate is screweA on I,u
the sL,rnA pipe with 36-in pipe
wrenches.
CONCItCTE: H-in t:u 17-in cylinder
puureA around ••Land pipe and rui.4
bolt•..l.5 tl. to 4 ft. high.
kOCY. ROI1S: 0.5-in diaweter, 4-tt.
lenyth.
FIGURE ~.8.1.5.I - 1 MONUMENT CONSTRUCTION,
BEDROCK MONUMENT
?_3-1