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r~ <br />u <br />ClRCES Cost Estimatir{g_Software <br />sheet 1 of 2 <br />Task # : 004 State :Cdoratlo Pertnifrob # : C-1982-057 <br />Date: 084752005 County:Routt Abbreviation :none <br />User : JRS Site :Seneca li-W Filename : C057-004 <br />Agency or organization name : Cdoredo Division O11Ninerals.4nd Geology <br />Permit or other job action :Permit Renewa104 <br />Task description :Drill and Shoot South Sage Creek Pit H(ghwall <br /> ctuaNTITY urvrr <br />Blast area configuration description Wedge-shaped mass <br />Blasting method description st blast <br />Highwali or bench face angle 0.50 h:1v <br />Regraded slope angle 1.00 :1v <br />Highwallwbenchlength f, 600 eel <br />Highwali or bench width (from veAical line at base of desired cut on highwall face} 40 eet <br />Highwali or bench height (from pit Boor to asst) 50.0 eel <br />Depth to base of cut at highwall face <br />g. „ <br />.~ ."'~:s~~...g'~~K~~£~~bw;~T'Ys~~x'~ .x'_SO~n&~w f ~ ~ .:ij~f ~.' _ 4p,0 <br /> <br />"x~i' set <br /> <br />--`: <br />6L/W I ARGA VULUMtA1 <br />• ctuArlrlrY <br />Total voume of dimensional mass to be shot 23,704 <br />Blast volume to subdrill grade and blast pattern lines -22,299 <br />Blast volume to finish grade and blast pattern lines -18,809 <br />Remaining voume required to be re-shot or ripped 42513 <br />BLAST AREA DESIGN <br />• <br /> QUANTITY UNIT <br />Recommended blasthole diameter 5.88 nches <br />Selected blasthole diameter g,87 ~g <br />Subdrilling allowance B.3 t <br />Blasthole depth (avg. depth of holes on wedge-shaped mass) 26.3 <br />Density of rock verage Density Ck density <br />Burden to Charge Diameter Ratio 25 'mss diameter <br />Burden 21.0 <br />Spadng to Burden Ratio 1.1 'mss burden <br />Spacing 23.0 eet <br />Cubic yards of roclt per blasthole (avg. quantity per hole on wedge-shaped mass) 14730 cubic yards <br />Powder factor description Medium ock strength <br />Powderfador 0.575 nds/w.yd. <br />Density of blasting agent 0.85 grams/cc <br />Quantity of explosives per blasthole (avg. quantity per hde onwedge-shaped mass) ERR ounds <br />Height d powder column per blasthole (avg. height per hole on wedge-sha ed mass) 3.00 set <br />Height of stemming per blasthole (avg. height per hole on wedge-shaped mass) 23.30 feet <br />Stemming to burden ratio (avg. retio per hole on wedge-shaped mass) 1.11 es burden <br />Quantity of stemming per blasthole (avg. quantity per hole onwedge-shaped mass) ERR ubic yards <br />Number of rows 0 rows <br />Mumber of bWsthdes per row 69 oleS per row <br />Total number of blastholes 0 oles <br />Total length of ail blastholes <br />_~ xy -y .. :~s'£~rte.F~ra';Eft^ri~"~x;s. ,~~~~€~::. ~r a~.ryx~.tsw'-~"-t-~,"~„.:.;.,5~.a~ <br />.~ .. x Ov4~. re,:..i.a x.~,..<.,...o:."x'd.x,. -:i N. x ~ 1,815 <br /> <br />~ d ~.. <br />~ae~y,,, ;;;~?: et <br />,~'a ~b„. <br />, '.gip.. <br />