Laserfiche WebLink
sheet 1 of 2 <br />u <br />Task # : 002 State :Colorado PemtitQob # : C-1982.057 <br />Date: 03/11/2008 CouMy:Routt Abbreviatlon:none <br />User : JRS Site :Seneca li-W Flename :0057-002 <br />Agency or organization name :Colorado Division Ol Minerals And Geology <br />PermH or other job action :Permit Renewal 04 <br />Task descriptlon : Drl/1 and Shoot South Wedge Pit Hlghwall <br />.. ., ~-:>F . ;< a. ,'um. ~3 ,:~r-. ..., ,o...v -~.. .-`.~,r"'..,w.f.. yh xkT, ~:. r~ve 'x 3~<r:m °rk oi.'~, w"`d ^ . wr <br />> ...,., .-_ . a3_:..ae ,.fin',.... -,.... r,>;.§ <br />BLAST AREA DIMENSIONS <br />line at base of desired <br />• 81as1 <br />elect <br />• <br />Zw~~]1 <br />or bench face <br />i skips angle <br />or bench lerrol <br />or oencn reign[ (rrom ps nc <br />base of cut at hiahwaA Noce <br />mass to be shot <br />e and blast oattem tines <br />volume renuired to be re-shot or <br />IUANTITY ~ UNIT <br />7e-shaped mass <br />blast <br />0.50 :iv <br />1,00 :tv <br />5,250 <br />40 <br />1t00 <br />40.0 ,~ <br />UANTf1Y UNIT <br />77.778 bic yards <br />•7ase4 bicyards <br />ez 1st yams <br /> QUANTITY UNIT <br />Recommended blasthole diameter 5.88 <br />Selected blasthole diameter 9.87 <br />SulxlriAing alkrwance 6.3 <br />Blasthoie depth (avg. depth of holes on wedge-shaped mass) 28.3 <br />Density of rock verage Density k density <br />Burden to Charge Diameter Ratio 25 "mss diameter <br />Burden 21,0 <br />Spacing to Burden Ratio 1.1 'mss burden <br />Spacing 23.0 <br />Cubic yards of rock per blasthole (avg. quantity per hole on wedge-shaped mass) 147.30 bic yards <br />Powder factor description Medium rock strength <br />Powder factor 0.575 Iwunds/cu.yd. <br />Density of blasting agent 0.85 rams/cc <br />Quantity of explosives per blasthole (avg. quantity per hole on wedge•shaped mass) ERR aurrds <br />Height of powder column per blasthole (avg. height per hole onwedge-shaped mass) 300 t <br />Heigh of stemming per biasthole (avg. height per hole onwedge-shaped mass) 23.30 et <br />Stemming to burden ra8o (avg. redo per hole on wedge-shaped mass) 1. f 1 'mss twrden <br />Quantity of stemming per blasthofe (avg. quantity per hole on wedge-shaped mass) ERR cubic yards <br />Number of rows 0 r aves <br />Number of brastholes par row 228 holes per row <br />Total number of biastholes 0 holes <br />Total length of atl blastholes 5,996 <br />. .: ha' - asC ,. xPy, s ~.::. ,..;-: s. sx. '. ~- S x..' rev '' r eet <br />'.:;~cx <br />CIRCES Cost Estimatlnst Software <br />