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FROM = I~,LAB__Inc,SRLTLRKECITY,UT PHDNE NO. = 8016856111 May. 20 2003 09:10HM P2 <br />• <br />Environmental Stratagies (West F,Ifc Mine 12d.) <br />Ttiaxial Consolidated TJndrained /with Pore Pressure /Multi-Staged <br />d9+iln at 15-t 7 feat <br />• <br />• <br />Phase 1 2 3 <br />Drill hole 49+00 <br />Sara le <br />Depth (ft) 15-17 <br /> w (%) 24.4 ~ <br /> yd (pcfl ] 00 (>` <br />'~ co <br /> B ` <br /> w (%) 20.5 <br />~ yd (pcf) 109.7 <br />w eo <br /> B <br /> .Back ressure si 34.5 34.5 34.5 <br /> Strain rate (in/min) 0.0081 0.0081 0.0081 <br /> <br /> <br />Stress conditions M <br />p <br />b <br /> <br />a. .''~ <br />-b <br />b <br /> <br />~ r+ <br />b <br />b <br /> <br />a. m <br />b <br />b <br />X <br />j r~ <br />b <br />b <br />~ <br />a cn <br />b <br />-b <br /> <br />,~ <br /> s (% 6.50 16.14 22.61 <br /> Time to Fail min 5.5 8.0 5.3 <br />h a3 (pst) 1008 2016 4032 <br />~ ai-a3(psfl 1550 2990 5170 <br />`" 61(psfl 2558 5006 9202 <br />H Q = 61-63)/2 (psf) <br />P = (a1+63)/2 (psf) 775 <br />1783 1495 <br />3511 2585 <br />6617 <br /> u( 216 806 1670 <br /> A = 613) 0.139 0.270 0.323 <br /> e (%) 6.50 16.14 22.61 <br />~ Time to Fail min 5.5 8.0 53 <br /> 6'3 (psf) 792 1210 2362 <br />y 6'1-6'3 ( st) 155U 2990 5170 <br />'~ 6'1 (ps:f) 2342 4199 7532 <br /> Q' _ (dl-a'3~Z (psi 775 1495 2585 <br />~ P' _ (a'1-t-6'3)/2 (psf) 1567 2704 4947 <br /> 6'1/6'3 2.96 3.47 3.19 <br />Summary of strength paramaters Total stress Effective stress <br />~ (aeg) za 3z <br />c (psf) 0 0 <br />Slope of P-tl, a (deb 2Z 28 <br />cupp_49+Oput15-77 <br />Summary <br />