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<br />CIRCES Cost Estimating Sotrtware <br />sheet 1 of 2 <br />Task # : 001 State :Colorado Pennitlob # : C-1982-057 <br />Date : 08/052005 County : Routt Abbreviation :none <br />User : JRS Site :Seneca li-W Filename :C057-001 <br />Agency or organization name :Colorado Division Of Minerals Arrd Geobgy <br />Permit or other job action :Permit Rertewa/ 04 <br />Task description :Drill and Shoot A Plt <br />Blast area <br />• <br />• <br />Highwall or bench face angle 0.50 h:1v <br />Regraded slope angle 1.00 h:lv <br />Highwall or bench length 1,500 eet <br />Highwalt or bench w"with {from veAical line at base of desired cut on h' I face) 40 <br />Highwall or bench height (from pit floor to crest) tr50 eef <br />Depth to base of at at highwa0 face pp q0,p em <br />BLAST AREA VOLUMES <br />f0 be shot <br />Zea~~ <br />mass <br />QUANTITY <br />Blast volume fo subtlritl grade and blast pattern fines ~ -21 006 cubic yards <br />Blast volume to finish grade and blast oattem lines _~~ ~~o ,..,u.. ,.~.w~ <br />re-shot or <br /> QUANTITY UNIT <br />Recommended blasthole diameter 588 inches <br />Selected blasthole diameter g,87 chi <br />Subddlling allowance 6.3 Meet <br />Blasthole depth (avg. depth of holes on wetlge-shaped mass) 26.3 t <br />Density of rock verage Density R rock density <br />Bunten to Charge Diameter Ratio 25 'mes diameter <br />Burden 21.0 eet <br />Spacing to Burden Ratio 1. f es burden <br />Spacing 230 <br />Cubic yards of rock er blasthole (avg. quantity per hole on wedge-shaped mass) 14730 ubic yards <br />Powder factor description Medium ck strength <br />Powder factor 0.575 ounds/cu.yd. <br />Density of blasting agent 0.85 gramslce <br />Quantify of explosives per blasthole (avg, quantity per hole on wedge-shaped mass) ERR nds <br />Height of powtler column per blasthole (avg, height per hole on wedge-shaped mass) 3.00 eel <br />Height of stemming per blasthole (avg. height per hole onwedge-shaped mass) 2330 et <br />Stemming to burden ratio (avg. ratio per hole on wedge-shaped mass) 1.11 'mes burden <br />Quantity of stemming per blasthole (avg. quantity per hole onwedge-shaped mass) ERR cubic yards <br />Number of rows 0 r ows <br />Number of blasthofes per row 65 holes per row <br />Total number of bfasthofes 0 oles <br />Total length of all btastholes <br />^X9'4t %r.N k^c ~ ~."$t ~Gi j SY:NN$Tv ':'' ~~'~ ' ~"~~ ..~C a•^ ~, ~ ~ l <br />£ 3 .' ..~ n~ b~.k ,.,,..,a w.3.i 9 7..~ ...~ ev/:. ..(~v3.e p.< e's :~: `bw <br />,.ws.s 1,710 <br />~~ <br />a ." <br />~. , ~~3 ... .. .~ <br />.~,~++'~. ~.~ 9 <br />3~H <br />w..3: --.. --3k <br />