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Arrangement of rock cutting tools on full face tunnel boring machines
86A
cost savings - fromtrying out axavslidstiq
theconclusionsdrawnsrethatfhemaluI?ls of flexuralrigidityof tie segmentsis m by variation in the appliedberkdlng movement,ard also with variationin uniformpressureon the back of the segment.Thejointsbetweensegments do llotalwsys behaveas simplebutt joints. 775oel ~SIRGOFGORDONFWERTUNNELLIRINGBY IKl'ERFACE!GROUPIIR; Olive,R T CivilEngng!l!rane, InstEngrsAust,VC!E& ~2, 1976, ~146-154 The TIWAGgroutirgsystemwasusedtorender theco~ceellaing~~eOcodonParert~1 tightsgainsthighinternelw&erpressure;A bonibreskerwasinstslledatlheconcreterock Interface anigroutwasdrivenintothe interface~o~iqfectiontubes.Thegraut preccmpressesthe lining ard assistsintransferrlngintarnslwaterpressureto therock; Extensiveinstrumentation shcvedthat observed performance ccxnpsredwellwith anslytlcal prediction.
new concepts, psrticularlyinthecostly area of tunml support.Thieexperience, mostly
abroad,challenges the U S. to do likewise. Guidanceofferedemphasizes rock support. 775087DEVELGPMENfOFTHETHYS~N'IUNKELMAC?IIRE Grieves,M Proc S Wales InstExgr,V91, NW 1976, P21-25 Reportsexperience with the Thysaentunxmlling machineatDawdonColUery.Thiskiniofmachine is econanlcfcirlong,uninternlpteddrlves. It mmits tie lntrcduction of supprt techniques whichformerlycouldnotbe appliedincosl miningcorditlons, a&which al&x the COP structionof lorg-lifetransportardventilation srterleswhichrequirelittlemaintenance; 775088NUMERICALMODELLINGOF AROCKBODYWITR SEVERAL MIREWORKINGS(INPOLIsA) Filcek,H; Wslaszczyk, J GornlctrJo,Vl, RI, 1977, P7-13
775CfQ PROBLEMSINTURNELSUPIQRl'MECHANICs Dsemen,J J K ~rdzcgrotiSpace,~1, ~3, 1977,~163-172 SCxneaspectsof grouxrl-supp3rtMteractionare dlscussedasaguidalinetcwsrdsdfzvel.opiIlg rationaldesignIrocedures s3d as a mcdelfar the interpretation of maasrrrement results.!M.s discussion coverstunnelsinboth soil ani rock.-
Gives abrief outlineof investigations urdertakento developa computerprcgrsmfordetermining the stressesin arockbalywith severalmine workingsmore accurately thanwas possible previously. 775089SPECIALTECHRI~S USED IN SUBWAYCORSIRUCi'ION hansp str&
IN~ALTUNNELLINI~s 775083 scMEDEXELOPMEZ?TS DESIGNEDINTHEURITEDKIi%DCM Lyons,A C Utiergrounl Space,Vl, N3, 19'7'7, ~173-183
77509QSl'ABILITYOFTUNRELSINSOFTROCKATDEPI'H Wilson,A H Proc ConferemeonRockE@aeering (NewcastleupopTyne,4-7 Amfl W?‘7), P5u-527
Discussessane stardsrdallpurposelini~gswhich are widelyused anl modifications an3 developllerrts whichhave been made for specificpurposesor particulartypes of hound, coveringexpardcd concretelinings,touted cormxeteliningsanl cast iron linings; 775084 Duffaut,P Underground Space,XL, Nj, lm,
Pl85-200
Aninterestingreviewwith50 refs. OF 'IBETAUERKSLMMITTIJNKELS, PART 1. 775085 ZONSTRXX'ION IENERALDEX!RIFTION ARD TAUERN'KiRNEL EX!AVA!PION L'KR- COHESIOKLESS GROUND Harbeck,J utiergrourd Space,~1, IQ, lm, ~201-226 htwrallnFomation incluiesadescriptionof theTauern Hi&way ad the tunnels,the cop thegeolqicsl surveyarri struction programme, rockmass classification, ard the site organisatlonfor surfaceplant;The tunnelaxcavation is iescribedindetailwlthparticulsrrderence bothe Austrianshotcreting constructionmsthcd, anitothemonitxxirgsystems for therockmass Ptisuppca%; 775086 CNSl?RUMEM?ED'lUNREL'IESPS:AKEYTGPRMU3SSAND~ ZOSTSAVING Lane,KS Utierground Space,Vl, IQ, 1977,p247-259 Mdewuf thecasehistoryrecordshowsharthe aseof tunneltest sectionsresultedinmajar
RI_,Jan 1977,~14-18
A distinction is made betweenthe behaviourof soft rocks axlhsrdrocks at depth. In soft rccksfailurecccursfcrqtitesonmdintsnce srounithe excavation, arnlstability ofthe opening relieson the interllal frictionpresent. inthe failedrockbuildingug a load-bearing capacity. The strengthof softrocksin situ atd the emgnitudeofthe internalfrictionsred.iscussed.Fcrmulaeare presentedrelatlngthe rock strength, internal friction amI the degreeof supportto the build-upof atreesani the width of the yieldzone.The implications of these formulaeare considered. As snexsmple,the calculation of the reinforcements requiredin a pillarofweakgrounlbetween2 rosdwaysinthe tinge Insetat BagworthColMery is given.
775091ARRAIQEMEI?POFROCKCUITINGTOOLSONFULTFACE IUNRELBORINGMCKINEX Hlgnett., H J; O'Reilly, M P Proc Conference onRockEr&mering (Newcastleuporrllyne, 4-7 April197'7), F557-580 During a programmeof full-ard pilot-scale resewch intorock cuttirgamethodwas devisedto optimizethe lsyoutof cutting-tools onthe head of full-facetunnelling machlne6.The methodarrangesthetodlscoOcentrlcsl.lyonashsllowconlcslhead,ensuringbycontrolof the depthof cut thatmaximuminteraction occursbetweensuecessivecuts,so minirnisilp; the sxmuntof energy used per unit quantityexcavated. Designnaacgrams, linkingthetoolandmachinepsrsmeters,hsvebeen prepared for ammber oftypicalcuttersrrazgemsntsusingdreg picksanl discs,an3 the application of the methodIs discussed.
cost savings - fromtrying out axavslidstiq
theconclusionsdrawnsrethatfhemaluI?ls of flexuralrigidityof tie segmentsis m by variation in the appliedberkdlng movement,ard also with variationin uniformpressureon the back of the segment.Thejointsbetweensegments do llotalwsys behaveas simplebutt joints. 775oel ~SIRGOFGORDONFWERTUNNELLIRINGBY IKl'ERFACE!GROUPIIR; Olive,R T CivilEngng!l!rane, InstEngrsAust,VC!E& ~2, 1976, ~146-154 The TIWAGgroutirgsystemwasusedtorender theco~ceellaing~~eOcodonParert~1 tightsgainsthighinternelw&erpressure;A bonibreskerwasinstslledatlheconcreterock Interface anigroutwasdrivenintothe interface~o~iqfectiontubes.Thegraut preccmpressesthe lining ard assistsintransferrlngintarnslwaterpressureto therock; Extensiveinstrumentation shcvedthat observed performance ccxnpsredwellwith anslytlcal prediction.
new concepts, psrticularlyinthecostly area of tunml support.Thieexperience, mostly
abroad,challenges the U S. to do likewise. Guidanceofferedemphasizes rock support. 775087DEVELGPMENfOFTHETHYS~N'IUNKELMAC?IIRE Grieves,M Proc S Wales InstExgr,V91, NW 1976, P21-25 Reportsexperience with the Thysaentunxmlling machineatDawdonColUery.Thiskiniofmachine is econanlcfcirlong,uninternlpteddrlves. It mmits tie lntrcduction of supprt techniques whichformerlycouldnotbe appliedincosl miningcorditlons, a&which al&x the COP structionof lorg-lifetransportardventilation srterleswhichrequirelittlemaintenance; 775088NUMERICALMODELLINGOF AROCKBODYWITR SEVERAL MIREWORKINGS(INPOLIsA) Filcek,H; Wslaszczyk, J GornlctrJo,Vl, RI, 1977, P7-13
775CfQ PROBLEMSINTURNELSUPIQRl'MECHANICs Dsemen,J J K ~rdzcgrotiSpace,~1, ~3, 1977,~163-172 SCxneaspectsof grouxrl-supp3rtMteractionare dlscussedasaguidalinetcwsrdsdfzvel.opiIlg rationaldesignIrocedures s3d as a mcdelfar the interpretation of maasrrrement results.!M.s discussion coverstunnelsinboth soil ani rock.-
Gives abrief outlineof investigations urdertakento developa computerprcgrsmfordetermining the stressesin arockbalywith severalmine workingsmore accurately thanwas possible previously. 775089SPECIALTECHRI~S USED IN SUBWAYCORSIRUCi'ION hansp str&
IN~ALTUNNELLINI~s 775083 scMEDEXELOPMEZ?TS DESIGNEDINTHEURITEDKIi%DCM Lyons,A C Utiergrounl Space,Vl, N3, 19'7'7, ~173-183
77509QSl'ABILITYOFTUNRELSINSOFTROCKATDEPI'H Wilson,A H Proc ConferemeonRockE@aeering (NewcastleupopTyne,4-7 Amfl W?‘7), P5u-527
Discussessane stardsrdallpurposelini~gswhich are widelyused anl modifications an3 developllerrts whichhave been made for specificpurposesor particulartypes of hound, coveringexpardcd concretelinings,touted cormxeteliningsanl cast iron linings; 775084 Duffaut,P Underground Space,XL, Nj, lm,
Pl85-200
Aninterestingreviewwith50 refs. OF 'IBETAUERKSLMMITTIJNKELS, PART 1. 775085 ZONSTRXX'ION IENERALDEX!RIFTION ARD TAUERN'KiRNEL EX!AVA!PION L'KR- COHESIOKLESS GROUND Harbeck,J utiergrourd Space,~1, IQ, lm, ~201-226 htwrallnFomation incluiesadescriptionof theTauern Hi&way ad the tunnels,the cop thegeolqicsl surveyarri struction programme, rockmass classification, ard the site organisatlonfor surfaceplant;The tunnelaxcavation is iescribedindetailwlthparticulsrrderence bothe Austrianshotcreting constructionmsthcd, anitothemonitxxirgsystems for therockmass Ptisuppca%; 775086 CNSl?RUMEM?ED'lUNREL'IESPS:AKEYTGPRMU3SSAND~ ZOSTSAVING Lane,KS Utierground Space,Vl, IQ, 1977,p247-259 Mdewuf thecasehistoryrecordshowsharthe aseof tunneltest sectionsresultedinmajar
RI_,Jan 1977,~14-18
A distinction is made betweenthe behaviourof soft rocks axlhsrdrocks at depth. In soft rccksfailurecccursfcrqtitesonmdintsnce srounithe excavation, arnlstability ofthe opening relieson the interllal frictionpresent. inthe failedrockbuildingug a load-bearing capacity. The strengthof softrocksin situ atd the emgnitudeofthe internalfrictionsred.iscussed.Fcrmulaeare presentedrelatlngthe rock strength, internal friction amI the degreeof supportto the build-upof atreesani the width of the yieldzone.The implications of these formulaeare considered. As snexsmple,the calculation of the reinforcements requiredin a pillarofweakgrounlbetween2 rosdwaysinthe tinge Insetat BagworthColMery is given.
775091ARRAIQEMEI?POFROCKCUITINGTOOLSONFULTFACE IUNRELBORINGMCKINEX Hlgnett., H J; O'Reilly, M P Proc Conference onRockEr&mering (Newcastleuporrllyne, 4-7 April197'7), F557-580 During a programmeof full-ard pilot-scale resewch intorock cuttirgamethodwas devisedto optimizethe lsyoutof cutting-tools onthe head of full-facetunnelling machlne6.The methodarrangesthetodlscoOcentrlcsl.lyonashsllowconlcslhead,ensuringbycontrolof the depthof cut thatmaximuminteraction occursbetweensuecessivecuts,so minirnisilp; the sxmuntof energy used per unit quantityexcavated. Designnaacgrams, linkingthetoolandmachinepsrsmeters,hsvebeen prepared for ammber oftypicalcuttersrrazgemsntsusingdreg picksanl discs,an3 the application of the methodIs discussed.