Laserfiche WebLink
- R'FSSER`l <br />~y fl.~is-uun <br />~ avc <br />A :y~liarv <br />• q <br />a'etrn f~eit <br />~~~.~ uarna^/ 30, 1?87 <br /> <br /> <br />DS. '1f3I1 Gyti+c <br />~~ amat? cn s..eriz=:st <br />ColoraZo :1iz:ed I?T.C: Peclama~cn Division <br />1313 8^°^^a^ St=eet <br />~zve=, C7~ 80203 <br />Fe: hGV No. C-87-001, Ste? 1 Re:re~~a1 Ac~?cn <br />Cur pe_^:Lit No. C-81-018 was or_ginally grante3 witz a gecte znical investigatic <br />preared by C:en arm' Associates. T.tiis report azc'_-esse3 all yeotecYuiical aspec~ <br />of cur refuse program, but since no zeal refi:se material was available for <br />test_rc.,, sL:erg`..h znd stability cza~-~zcte_-is`cs we=e asssne3 base3 cn typical <br />scenarios at ot^.er sites. Fd:en we be;-zn processing refuse we then ccntrzcted <br />Lincoln DeVore Zat:oratories to develop a Prxtor Curve of cur mate_~-ial (copy <br />attached) and we pure`'ase3 nuclear density e:uig;zzt which is used to verify <br />rewired canFzction results. Records of Ze.^sity testing aze rn file at our <br />minesite. Q•.ce we estzblis;.ed t::e results whit: wee could achieve, we then <br />contrzcted Lincoln Devore L..borztories to establish strength and stability <br />characte_-istics tria:ch TRS?.'QelL shear tes`~i.txJ (ccry zttze'•.ed) . A ca~asiscn <br />be~~~een the assLRner_' values zad zctual are stamzrized below:. <br />Origi^al Pss~sne-_' <br />values Praia? <br />Ceasity <br />CChe51.Cn <br />95 Pte' <br />22° <br />200 Pte"' <br />85.2 (dry) <br />29 ° <br />576 PSe <br />Please refer to our pe_^nit, Volume 12, illust-aticn 21, page 24, FYgure 7, <br />Table, lower coltz~c:.s, you ar_]1 note that all of t`.e original assunmticns <br />waze cvite ecnse_^rative. ~:e zes.sitt i5 a_C"Z.7. Ci[[3ately 10 lbs. per rabic <br />Ecct less, t`:e angle of inter-~a1 fzc~ on is mue'~ flatt_* and cckesicn is <br />r~arly three ti:I7es y~-eate=, wten ca~nra_~'er_' to the rcrst case, which achieves <br />a fac}..or of sa~ety of 2.4 cri a 5:1 slcce. You w~ also note that our <br />mat°_.al achieves a safety factor in access of 1.5 using a 3:I slope. We <br />gave ccrsidazed mxif•r'.nc ci oe_"nit to~3'c1 slcces but have chcse_z to await <br />re.lamat?cn results f=cn Re=se Ar°~ :1 to hel? us iz e~raluatias. <br />I believe t:•Lis ss:;^.stant_zt:cn to s:.cw=-:c a lcac tee static safet_~ fzctor. <br />e~ccee''-i.':g 1.5, r-aci^.ea :.r_th ;.e_--Lit cce_re.^.`=t_en and c~arr~^ly rear's <br />de^^.~cns;sates t^.at cur r_=.se prac_ces melt t`.e ^e_=czanca s`.anca.-fs of <br />rie 4.10.4. <br />~.m wrx <br />eo. ~ :ob; <br />Nantjt7 Cabndo S16i6 <br />