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Some impressions and observations of Soviet coal mining
225A
2227 LIV~N0STON,CW 011 ~1~e. A ~ u t l o n t o the romlblock.-A review of three a p l ~ o a c h e s t o o i l s h a l e developme~s, u m d ~ mini~, In-~tu retcrti~ a~d c o n ~ i o m a l surface ~ini~: I~F,6R.
E~.MI~. J.VI7P, ~6,amE, 197~,Pzo9-n7. 2228 HARVEY,RC ~,AWT Cavitation in semi-infimi~e granular media. 2F,I(~.
CrV.~.~A~CH,1974, ~52- p~. The auth~s I ~ o p o s e a new method of calculatimg the ult.t- ~ e 1~es~ure eausln~ c a r i l l o n in a s~-~-Infin$~e @ranular medlum, uslng a rupture theory, p r o p o ~ b y Danlel, as the ~ e r n l m g c ~ t l o n of the state of limit equilibr l ~ adjacent to the cavity. Use was also made of ~ e nonllnear s~ress-s~ain rela~l~hips in ~ e r to calculate t h e volt,ethic stredn in t h i s re~Ion. 2229 WHITTA~,BN UNIV. NOTTI~HAM, GB An ap~ai~al of strata control practice. ~F,~T,30R. T ~ S •INSTNoMIN.METALL .V83,JULY,197~,P.A85-A95. The state of kmowledge of strata control in relation to t h e d e s ~ n and s u ~ p ~ t o f u ~ d e r g r o u ~ w c r k l ~ is reviewed. R o ~ ar~ pillar d e s ~ n an~ ice,wall layout p a r a m e t e r s a r e exan~.ned, ar~ 'the development of p.::m~ed roof-support systems is described. Reference i s made t o ~a~ r o l e s p l a ~ e d b y r e s e a r c h a~d d e v e l o p m e n t establlshments, specia.lls~ ~ ~ s ~ ccmmi%'~ees a~d the ma~acturimg Imdustry in respect to I n ~ m~-e positive ~Idance on mine d ~ . ~ml s~PlX~. At'tention is fOct~ed on how b e t t e r use can be m~i~ of ~xi~ti ~ knowledge to meet the c ~ i : ~ ~rata cO:f~rnl requiremen~ ~f the mimimg i~u~t~y. A ~rief a c c ~ is given of t h e role played by legislation in l ~ a m ~ l ~ hi~h~r stanlards of strata control in Injustice. Auth. 2230 WHITTAE~, BN i~IY. ~ O ~ H A M , GB FOTTS,EL Disct~ssion on "An apl~aisal of strata control !~actice" by B.N. Whittaker, and authors reply. 22F, 19R. TRANS.INSTN.MIN.METALL.VS3,JULY,197~,P.A95-AI09.
which e~plain %he success of most roar bolti~ inst=l1=tions as the creation of a ecupeta:~ roof bolt reinfarced rock erch within %he ~-~liate rc@f rock overlyin~ an umdergrounl ol~nim~. The fail~e of some bolted mime roofs can be exlalalme~ as a fail~e to cres~;e a strv2t~rally cmm~etant rock arch by roof baltim~. Auth'.
22S~ W~'A'A'AEER,BN UNIV. ~TTI~HAM, GB Abstracts frnm a paper-An appraisal of strata co~Arol ~actlce. IT,10R. MIN.TECHNGL .V~6,~6~i,MAR. 197~,PI02-105. Lor~wall face d e s i g n and l a y o u t and powered roof support design a~d application ere the %WOpoi~s considered in this artlcle. The redistribution of %he strata Im~ess~ce resulti~ from the f c ~ i o n of the lom~wall face and its implics~ions are dise~ssed. The i ~ e ~ i ~ associated with t h e e f f e c t s of i. i n ' e s s m ' e f r c ~ t h e p r e e e n c e of other wo~ki~s etc. a~d 2. displacements l~odueed by undermlnln~, and the methods of l~rotection agaiDst such effects a r e men~ionsd.
223P YANCIK,JJ Some impressions a~d observations of Soviet coal mlni~. IF, 2T,~R. MINING E ~ G I ~ I ~ , AIME,V26, ~7, JULY,197~,P63"67 • Features of Soviet coal minir~ are r e ~ which the auth~ considers could be usefully a d o l ~ in the U.S.A., amd also same which would be umacceptable. The Soviets believe tha~ the future of deep c o a l ~ l n i n z l i e s In ~he use Of ~hield type s ~ s with full face, t~oal rec o v ~ of coal. In %his res~act, t h e author believes tha+. the SOviets are ahead of the United States in ~evelopi~ mini~ technology far deep coal seams which sre also gaseous and subject to outbursts. 2236 ANON~M~JS Under~rour~ cC~m~lnications system far messages. warmimgs, mcmit~rin~.-A l~ototy~e system, at a Consolidation Coal Mimlr~ Co. mine in Ohio Valley, USA, is described.
WORLD MINING,V27, ~6,JUNE, 197~,PSS. 2237 ANOND~:)US How Mr. Isa uses dry, wet, and cemented f~ll. 8F, 1T. W G ~ MINI~, V27, N6,JUNE, 197~,P~0-35.
Mines 223l O,I',~IDACH,W O V a , IR MALYARCHUK,AM Temperature rises in coal pillars due t o d e f ~ = t i o n by i r ~ o u s loads. 2F,VR. SOVIET MIN.SCI .Vg,N2,MAR-APR.1973,P~05-209. 2232 SHADRIN,AG BONETS~II,VA D~INOVA, AI The air-permeable houmds~ies of def~m~med rocks in zone of influence of an extraction w~rkimg in a thick steep seam. 6F~SR. SOVIE~ M-IN.SCI .V9,N2,MAR-APR. 1973,P13~-138 • This paper s t y l e s t h e flow rates of air filtration c~rren~s in worked-out areas of mines as ons of ~he factors gowa'nimg the fo~-mation of heat emission tenures and heat ~opagation which result in spor~ax~ous fires. 2233 COX,~ UNIV.ALABAMA,USA Why snme bolted mine roofs fail. IIF,I~R. TRANS. SOC .MIN.ENGRS.AIME,V256, N2 ~JUNE,1974,P167-171. A roo~ boltimg theory and structural model are ~resented
Tunnels 2238 RABC~CZ, L GOSLER,J Application of the NATM to the under,touredw ~ k s at Tar1~la. Part i. 15F. • WATER POWER,V26,N~,~.I974,P321. This article consld~s the design ar~ construction of the umdergroumd structures at the werld's current largest fill dam at Tarbela in Pakistan, cor~ent~s~i~ on those sections which have beem elther e~Irely partly eonstructecl and designed usiDg the New Austrian Tunnslli~g Method. 2239 HAC~I,E Experiences frnrn %he d r i v i ~ of the Tavern tunnel. I n Ga-msn. 8F,3R. ROCK MECHANICS,V6, N2,197~, P61-90. The ~ I is sit~ated in the centre Of %he overthrttst of the Alps, therefere in a geolo~Ically ar~ teetonically interestimg region with problems fer tum~_lli:~. The excavation amd ~ wcrks were executed accardimz to %he ~rinciples of the New Atu~rian T1~melli:~ Method ( N ~ ) . This r e p ~ tries to ahc~ by inter~etation
2227 LIV~N0STON,CW 011 ~1~e. A ~ u t l o n t o the romlblock.-A review of three a p l ~ o a c h e s t o o i l s h a l e developme~s, u m d ~ mini~, In-~tu retcrti~ a~d c o n ~ i o m a l surface ~ini~: I~F,6R.
E~.MI~. J.VI7P, ~6,amE, 197~,Pzo9-n7. 2228 HARVEY,RC ~,AWT Cavitation in semi-infimi~e granular media. 2F,I(~.
CrV.~.~A~CH,1974, ~52- p~. The auth~s I ~ o p o s e a new method of calculatimg the ult.t- ~ e 1~es~ure eausln~ c a r i l l o n in a s~-~-Infin$~e @ranular medlum, uslng a rupture theory, p r o p o ~ b y Danlel, as the ~ e r n l m g c ~ t l o n of the state of limit equilibr l ~ adjacent to the cavity. Use was also made of ~ e nonllnear s~ress-s~ain rela~l~hips in ~ e r to calculate t h e volt,ethic stredn in t h i s re~Ion. 2229 WHITTA~,BN UNIV. NOTTI~HAM, GB An ap~ai~al of strata control practice. ~F,~T,30R. T ~ S •INSTNoMIN.METALL .V83,JULY,197~,P.A85-A95. The state of kmowledge of strata control in relation to t h e d e s ~ n and s u ~ p ~ t o f u ~ d e r g r o u ~ w c r k l ~ is reviewed. R o ~ ar~ pillar d e s ~ n an~ ice,wall layout p a r a m e t e r s a r e exan~.ned, ar~ 'the development of p.::m~ed roof-support systems is described. Reference i s made t o ~a~ r o l e s p l a ~ e d b y r e s e a r c h a~d d e v e l o p m e n t establlshments, specia.lls~ ~ ~ s ~ ccmmi%'~ees a~d the ma~acturimg Imdustry in respect to I n ~ m~-e positive ~Idance on mine d ~ . ~ml s~PlX~. At'tention is fOct~ed on how b e t t e r use can be m~i~ of ~xi~ti ~ knowledge to meet the c ~ i : ~ ~rata cO:f~rnl requiremen~ ~f the mimimg i~u~t~y. A ~rief a c c ~ is given of t h e role played by legislation in l ~ a m ~ l ~ hi~h~r stanlards of strata control in Injustice. Auth. 2230 WHITTAE~, BN i~IY. ~ O ~ H A M , GB FOTTS,EL Disct~ssion on "An apl~aisal of strata control !~actice" by B.N. Whittaker, and authors reply. 22F, 19R. TRANS.INSTN.MIN.METALL.VS3,JULY,197~,P.A95-AI09.
which e~plain %he success of most roar bolti~ inst=l1=tions as the creation of a ecupeta:~ roof bolt reinfarced rock erch within %he ~-~liate rc@f rock overlyin~ an umdergrounl ol~nim~. The fail~e of some bolted mime roofs can be exlalalme~ as a fail~e to cres~;e a strv2t~rally cmm~etant rock arch by roof baltim~. Auth'.
22S~ W~'A'A'AEER,BN UNIV. ~TTI~HAM, GB Abstracts frnm a paper-An appraisal of strata co~Arol ~actlce. IT,10R. MIN.TECHNGL .V~6,~6~i,MAR. 197~,PI02-105. Lor~wall face d e s i g n and l a y o u t and powered roof support design a~d application ere the %WOpoi~s considered in this artlcle. The redistribution of %he strata Im~ess~ce resulti~ from the f c ~ i o n of the lom~wall face and its implics~ions are dise~ssed. The i ~ e ~ i ~ associated with t h e e f f e c t s of i. i n ' e s s m ' e f r c ~ t h e p r e e e n c e of other wo~ki~s etc. a~d 2. displacements l~odueed by undermlnln~, and the methods of l~rotection agaiDst such effects a r e men~ionsd.
223P YANCIK,JJ Some impressions a~d observations of Soviet coal mlni~. IF, 2T,~R. MINING E ~ G I ~ I ~ , AIME,V26, ~7, JULY,197~,P63"67 • Features of Soviet coal minir~ are r e ~ which the auth~ considers could be usefully a d o l ~ in the U.S.A., amd also same which would be umacceptable. The Soviets believe tha~ the future of deep c o a l ~ l n i n z l i e s In ~he use Of ~hield type s ~ s with full face, t~oal rec o v ~ of coal. In %his res~act, t h e author believes tha+. the SOviets are ahead of the United States in ~evelopi~ mini~ technology far deep coal seams which sre also gaseous and subject to outbursts. 2236 ANON~M~JS Under~rour~ cC~m~lnications system far messages. warmimgs, mcmit~rin~.-A l~ototy~e system, at a Consolidation Coal Mimlr~ Co. mine in Ohio Valley, USA, is described.
WORLD MINING,V27, ~6,JUNE, 197~,PSS. 2237 ANOND~:)US How Mr. Isa uses dry, wet, and cemented f~ll. 8F, 1T. W G ~ MINI~, V27, N6,JUNE, 197~,P~0-35.
Mines 223l O,I',~IDACH,W O V a , IR MALYARCHUK,AM Temperature rises in coal pillars due t o d e f ~ = t i o n by i r ~ o u s loads. 2F,VR. SOVIET MIN.SCI .Vg,N2,MAR-APR.1973,P~05-209. 2232 SHADRIN,AG BONETS~II,VA D~INOVA, AI The air-permeable houmds~ies of def~m~med rocks in zone of influence of an extraction w~rkimg in a thick steep seam. 6F~SR. SOVIE~ M-IN.SCI .V9,N2,MAR-APR. 1973,P13~-138 • This paper s t y l e s t h e flow rates of air filtration c~rren~s in worked-out areas of mines as ons of ~he factors gowa'nimg the fo~-mation of heat emission tenures and heat ~opagation which result in spor~ax~ous fires. 2233 COX,~ UNIV.ALABAMA,USA Why snme bolted mine roofs fail. IIF,I~R. TRANS. SOC .MIN.ENGRS.AIME,V256, N2 ~JUNE,1974,P167-171. A roo~ boltimg theory and structural model are ~resented
Tunnels 2238 RABC~CZ, L GOSLER,J Application of the NATM to the under,touredw ~ k s at Tar1~la. Part i. 15F. • WATER POWER,V26,N~,~.I974,P321. This article consld~s the design ar~ construction of the umdergroumd structures at the werld's current largest fill dam at Tarbela in Pakistan, cor~ent~s~i~ on those sections which have beem elther e~Irely partly eonstructecl and designed usiDg the New Austrian Tunnslli~g Method. 2239 HAC~I,E Experiences frnrn %he d r i v i ~ of the Tavern tunnel. I n Ga-msn. 8F,3R. ROCK MECHANICS,V6, N2,197~, P61-90. The ~ I is sit~ated in the centre Of %he overthrttst of the Alps, therefere in a geolo~Ically ar~ teetonically interestimg region with problems fer tum~_lli:~. The excavation amd ~ wcrks were executed accardimz to %he ~rinciples of the New Atu~rian T1~melli:~ Method ( N ~ ) . This r e p ~ tries to ahc~ by inter~etation