Shrinkage Stoping Mining

SHRINKAGE STOPING MINING English II Students:

 TABLE OF CONTENTS •

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1. Introducing SHRINKAGE STOPING MINING. 2. D!cri"tion o# $t%od. &. Princi"' o# t% $t%od. (. A""'ic)tion )nd condition! (. E*ui"$nt. +. ,nti')tion. +. Min! in t% -or'd. . Ad/)nt)g! )nd di!)d/)nt)g!. 0. Su$$)r. . Conc'ution.

INTRODUCTION In !%rin3)g !to"ing4 tr)dition)'' ) co$$on $ining $t%od4 or i! 5c)/)td in %ori6ont)' !'ic!4 !t)rting #ro$ t% !to" 7otto$ )nd )d/)ncing u"-)rd!. P)rt o# t% 7')!td or i! '#t in t% !to"4 to !r/ )! ) -or3ing "')t#or$4 )nd to gi/ !u""ort to t% !to" -)''!.

S%rin3)g !to"ing $t%od d!cri"tion •

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 T%i! i! ) $t%od undrground $ining.  T% or d"o!it i! d" Or 7od i! !t". Gr)d i! %ig% to 5cd co!t!.  T% !to" i! $) 7 7)c38''d or '#t $"t4 d"nding on t% roc3 condition!. A't%oug% it /r !'cti/ )nd )''o-! #or 'o- di'ution.

Princi"' o# t% $t%od •

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It con!i!t! o# digging t% or %ori6ont)' !'ic! in )n )!cnding !*unc 97oo!t: on t% 7)!i! o# t% !to"!.  T% $)tri)' i! continuou!' r$o/d #ro$ t% 7)!.  T% r!t i! !tord in t% !to"!4 !o )! to !r/ )! ) -or3ing ;oor #or t% !t)rting o"r)tion )nd !u""ort t% -)''!. <%n t% "roc!! %)/ 'i$it o# t% !to"!4 c)! dri''ing )nd 7')!ting )nd $"ting t% $)n!ion !t)rt! 5tr)cting t% $inr)' t% %)! 7n !tord.  T% "i'')r! )nd 7ridg! !")r)ting $inr)' $)n!ion! u!u)'' )r rco/rd !u7!*unt'.

A""'ic)tion condition! •

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 T%i! i! ) /rtic)' or !u7=/rtic)' 5"'oit)tion $t%od 9or /rtic)' !tructur!:4 )nd t%ic3n!! 'itt' 91 to 1> $.: Mdiu$ )nd !$)'' $ining. St"' di""ing or7odi! 90>? @ >?:.  T% Inc'in)tion $o!t 7 gr)tr t%)n ++

Mt%od! undrground $ining Underground method !"tor

Unsu##orted Shrin$!ge Sto#ing

Or !trngt%

Strong

Roc3 !trngt%

Strong

D"o!it !%)"

T)7u')r  Lnticu')r

D"o!it di"

F)ir' !t"

D"o!it !i6

T%in  Modr)t

Or gr)d

F)ir' Hig%

Or uni#or$it

ni#or$

D"t%

S%)''o-  $odr)t

E*ui"$nt •

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S%rin3)g $ining *ui"$nt i! r*uir$nt! )r $ini$)'. Air'g $inr. %)u')g truc3 *ui"$nt Long%o' dri''ing LHD o !cr)"r

Min! in t% -or'd •

E' O'i/o $in  T% M)itn!4 C)n d' M)i"o.  –

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And! $ount)in r)ng4 n)r t% /o'c)no Tu"ung)to.  T% roc3 $)!! i! ) /in o# go'd4 !tudi!4 7ot% "ro!"cti/ )nd  T% roc3 $)!! i! ) /in o# go'd4 !tudi!4 7ot% "ro!"cti/ )nd E!ti$)t! indic)t t%)t t%i! i! ) $inr)'i6d 6on -it% ) %ig% gr)d )nd cono$ic rturn.

Min! in t% -or'd •

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Au!tr)'i)n undrground $ining. Mi3 Turnr Au!tr)'i)n $in.

,nti')tion •

 T% -or3ing #)c i! /nti')td 7 Incting )ir #ro$ t% tr)n!"ort g)''r 'oc)td in t% 7)! t%roug%.  –

Ad/)nt)g! •

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Dr)ining 7 gr)/it $)n!ion Si$"' $t%od #or !$)'' $in! Lo- C)"it)'4 !o$ $)c%ining "o!!i7' $inr)' )nd $ini$u$ !u""ort -)''! $odr)t D/'o"$nt! Good rco/r 90+=1>>J: Lo- di'ution 91>=2+J: "o!!i7' S'cti/it

Di!)d/)nt)g! •

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'o- to $odr)t "roducti/it 9&=1>ton  $)n=!%i#t $odr)t to %ig% co!t! Intn!i/ ')7or 'i$itd Mc%)ni6)tion dicu't -or3ing condition! A""ro5. >J o# t% "ri!onr $inr)' in!id t% $)n!ion unti' t% nd Dr)"ri! Lo!! o# t% $)n!ion in $"ting i# not don c)r#u''

SMAR