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BCack~Ning BLAST AND SEISMOGRAPH ANALYSIS <br />Company ~Y Cam/ /mil/[~ /~i9%~~aL Operation <br />Name /Gi1=0 f~T C?~ Coal^ <br />State _ ~~ Other_ <br />BLAST <br />Shot No. Burden ~ ft. Total Explosives~~lbs. Max.Explo./Delay ~ lbs. Delay Nos. S~8 <br />Date II '~-9~ Spacing aft. lbs. Max. Holes/Delay t Delay Mfr. Enl~~ ,B/c~,l`oe.o <br />Ttme I ~ ~ a5 Diameter min. lbs. Dist. Nearest Bldg. ftt No. of Timer Circuits~~ <br />No. Holes .Stemming ~_ft. lbs. Dir. Nearest Bldg. S Timer Inteorval a5 3~ ms. <br />Depth ~~ ft. Stem. Type I~2(I ~ GuT1"~w.~ s lbs. Weather~tl'y Blaster ,c TAT <br />Exact Blast Location duo ,B>F,uc~ ~z ~ Blaster's Comments ~oa~ 82~...Al~ / ~j,eow <br />SEISMOGRAPH DATA <br />Exact Location of Sies. 5ca,(~ ffoUS~ <br />Seis. No. Cassette No. Operator IM/~I C~ <br />Range ips Trigger Level ips Witnes's/_ <br />aNfl l.3/3/ ,~~~~Tr~ ~ %/riyf,ey ~6Y <br />VIBRATION MEA UREMENTS <br />(FOR BL.AC7r7t~/9,(C~ USE ONLY) ~ /J6 / 2 /c/C~/E2_ ~ / q,~/`_ <br />Transverse in/sec. Peak Ground Vibration ' wit ' excess of) _ <br />Vertical in/sec. Peak Air Overpressur It in 'n excess of) _ <br />Longitudinal in/sec. Analyst's Remarks <br />Overpressure- _d61 <br />(FOR BL.AC7~W171(C USE ONLY) <br />limit of in/sec. <br />limit of decibels. <br />Analysis By: <br />Dist. To Seis. ~ t' ft. <br />Meters Particle Velocity ~ ips <br />a/ Air Overpressure / dBl <br />Quarry ~ Constr. ^ <br />~, ,' . , _ ~ . ,4 .__ ~ -Use Reverse $itle.lor Blasi Diaa2m. <br />