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Three-dimensional solutions for displacement discontinuities in cross-anisotropic elastic media
33A
822112 CONSTRtETION AND P ~ N C E OF A MIXED FACE T U N ~ EXCAVATION Beloff, W R; Puza, D E; Gry~kewicz, F M Proc 5th Rapid Excavation add ~ , r ~ i ~ Conference, San Francisco, 3-7 May 1981, V2, PI~6-1560. Pt~l New Yc~k: AI~E, 1981 D e s c r i b e s t h e m o r ~ t c r i ~ programme u~lem~caken during the construction of twin tube tunnels in a mixed face zone, as part of the Massachusetts Bay Translx~tation Authorities Red Line Extension, USA. Materials encountered were gray s i l t y clays, glacial till and highly fractured silty arglllite. 822113 METHOD OF MODELLING THE EFFECT OF TRAFFIC ON D3~R~INED BURIED PIPELINES Carder, D R; Nath, P; Taylor, M E Transport ar~ Road Research Labcratcry, laboratury report 1028, 1981, 9P An analytical method is described for evaluating the bemdimg moments in a poorly bedded section of pipeline buried beneath a highway when subjected to traffic loadi~g. The method Is mainly applicable to small diameter pipelines which are buried at shallow depth beneath a relatively weak pavement structure. The application of the amalysis to a range of practical situations has been investigated. The mathematical model used for the analysis has been validated by c c ~ r ~ predicted beDdir~ strains, derived from the calculated bendir~ m~ments, with the measured strains iDduced in a Ixx~ly bedded section of experimental pipeline by traffic loadi~. Avail: TRRL, Old Wmkir~ham Road, Crowthorne, Berks, 822114 THR~-DIMENSIONAL SOLUTIONS FC~ DISPLACEMENT DISCO~TIES IN CROSS-ANISOTROPIC ELASTIC ~IA Wardle, L J CSIRO Division of Applied Gecmechanlcs " ~ c h n i e a l paper N3A, 1981, 321' Presents solutions applicable to the 3-dimenslo~al stress analysis of tabular unierground excavations. Avail: CSIRO Division of Applied G e c ~ a D i c s , PO Box A9, Mount Waverley, Vic 31A9, Australia
Mines 822115 ~
V~T.TA~YMINE Farnswcrth, P M Min Ma~, Vl~6, NI, Jan 1982, F20-28
Presents a case history of the Orchard Valley Mine, Colorado, USA. Mining is by the roc~ a ~ pillar method. The roef of the m~ne is made U~ of i n t e r b e d d e d saDdstones ar~ s h a l e s ~ i s not stable. Roof s u l ~ t is provided by resin anchored rouf bolts. 822116 FACE OPERATION AT RHEINLANE C O L L I ~ Fritz, W Min Engr, VIA1, N2~3, Dec 1981, P331-336 Includes a description of the development of the face suppurt system, frc~ power suPlx~ assemblies to shield supports and finally to 2-1eg shields with special pendult~n skids. g.M.M.S. 19/2--F
822117 UPRATING V E ~ I O N AT A MINE WITH NEW SHAFTS SUNK BY BLIRD DRILLII~G Oldroyd, G C; Lougaon, I; Pi~tt, C P Min Er~r, VIA1, N2~I, Oct 1981, P229"23~ Includes a brief discussion on the choice of blidd drilling to construct a .~m~t at the Brightling Mine, Sussex, UK. Factors considered included ~ology, grourd conditions and rock strength. Outlines the constrmction of the Willimgford anl stonehouse shafts. 822318 ~
SIRCING AT SELBY Tunnicliffe, J F; Kseble, S Min EI~r, VIAl, N239, Aug 1981,
P69-79
Describes the factors considered in the shaft design at the Selby Mine, Yerka~re, UK, and p r e s e n t s a case history of t h e a c t u a l s h a f t siring. Due to heavily water beariDg strata add associated Problems it was decided to freeze the shafts %0 a depth of IASm. Concrete was chosen as the shaft liniug, with cement grout injected to fill voids between llni~6 ar~ rock face. Chemical grouting was considered necessary to eliminate water inflow. 822119 STABILITY OF UNDERSEA WORKI~S AT LYNEMOUrH AND ELLINC~N COLLIERIES Tubby, J E; Farmer, I W Min Er4r, VIA1, N239, Aug 1981, P87-96 Describes the development of the Brass Thill seam at Lymemouth a~d Ellimgton Collieries, Ncrthmnberland, UK. The seam is situated beneath existing umdersea pillar workimgs. Results from an instrumentation ard observation programme at 2 test sites are s,-,mArised. Measurements were taken of: deformation of strata above the Brass Thill seam, deformation of the Main seam pillars, floor settlement and convergence. Results from this programme showed that uniermi~-d pillars in the Main seam remained stable a l t h c ~ there was wideslread collapse of rooms ani Junctions. It was shown that sea-bed settlements a~d strains would be much lower than expected. 822120 DESIGN AND O P ~ T I O N OF THREE METRE EXTRACTION FACES WITH HEAVY DUTY EQUIPMENT AT DAW MILL COLLIERY Drake, D; Wright, D M Min Engr, VIAl, N239, Aug 1981, P97-10A Outlines the development of equipment: powered suppers, armoured flexible conveyers a~i power loaders to improve safety, reliability amd productivity in thicker extractions. In particulsr the use of high support density and pump paakimg to combat severe roadway deformation at a depth of 600m is discussed. 822121 R O Y S ~ N DRIFT: NEW MINE - NEW TECHNIQUES Rourfl, C; Lewis, S
Min Engr, VIAl, ~238, July 1981, n7-24 Briefly outlines the m i ~ r ~ strategy adol~ted at the Royston D~Ift Mine, Yorkshirej UM, in the 1 ~ t of the geological coDdltions present. Also describes strata loedlng ar~ pull-down te~ts carried out on the new Caledonian arch system at a test site. Dense concrete backfill was found to increase the effectiveness of support. ~Vne tests confirn~ that the basis of this support s y s t e m ' s s t r e n g t h was t h e i n t e g r a t i o n o f i t s component p a r t s .
822112 CONSTRtETION AND P ~ N C E OF A MIXED FACE T U N ~ EXCAVATION Beloff, W R; Puza, D E; Gry~kewicz, F M Proc 5th Rapid Excavation add ~ , r ~ i ~ Conference, San Francisco, 3-7 May 1981, V2, PI~6-1560. Pt~l New Yc~k: AI~E, 1981 D e s c r i b e s t h e m o r ~ t c r i ~ programme u~lem~caken during the construction of twin tube tunnels in a mixed face zone, as part of the Massachusetts Bay Translx~tation Authorities Red Line Extension, USA. Materials encountered were gray s i l t y clays, glacial till and highly fractured silty arglllite. 822113 METHOD OF MODELLING THE EFFECT OF TRAFFIC ON D3~R~INED BURIED PIPELINES Carder, D R; Nath, P; Taylor, M E Transport ar~ Road Research Labcratcry, laboratury report 1028, 1981, 9P An analytical method is described for evaluating the bemdimg moments in a poorly bedded section of pipeline buried beneath a highway when subjected to traffic loadi~g. The method Is mainly applicable to small diameter pipelines which are buried at shallow depth beneath a relatively weak pavement structure. The application of the amalysis to a range of practical situations has been investigated. The mathematical model used for the analysis has been validated by c c ~ r ~ predicted beDdir~ strains, derived from the calculated bendir~ m~ments, with the measured strains iDduced in a Ixx~ly bedded section of experimental pipeline by traffic loadi~. Avail: TRRL, Old Wmkir~ham Road, Crowthorne, Berks, 822114 THR~-DIMENSIONAL SOLUTIONS FC~ DISPLACEMENT DISCO~TIES IN CROSS-ANISOTROPIC ELASTIC ~IA Wardle, L J CSIRO Division of Applied Gecmechanlcs " ~ c h n i e a l paper N3A, 1981, 321' Presents solutions applicable to the 3-dimenslo~al stress analysis of tabular unierground excavations. Avail: CSIRO Division of Applied G e c ~ a D i c s , PO Box A9, Mount Waverley, Vic 31A9, Australia
Mines 822115 ~
V~T.TA~YMINE Farnswcrth, P M Min Ma~, Vl~6, NI, Jan 1982, F20-28
Presents a case history of the Orchard Valley Mine, Colorado, USA. Mining is by the roc~ a ~ pillar method. The roef of the m~ne is made U~ of i n t e r b e d d e d saDdstones ar~ s h a l e s ~ i s not stable. Roof s u l ~ t is provided by resin anchored rouf bolts. 822116 FACE OPERATION AT RHEINLANE C O L L I ~ Fritz, W Min Engr, VIA1, N2~3, Dec 1981, P331-336 Includes a description of the development of the face suppurt system, frc~ power suPlx~ assemblies to shield supports and finally to 2-1eg shields with special pendult~n skids. g.M.M.S. 19/2--F
822117 UPRATING V E ~ I O N AT A MINE WITH NEW SHAFTS SUNK BY BLIRD DRILLII~G Oldroyd, G C; Lougaon, I; Pi~tt, C P Min Er~r, VIA1, N2~I, Oct 1981, P229"23~ Includes a brief discussion on the choice of blidd drilling to construct a .~m~t at the Brightling Mine, Sussex, UK. Factors considered included ~ology, grourd conditions and rock strength. Outlines the constrmction of the Willimgford anl stonehouse shafts. 822318 ~
SIRCING AT SELBY Tunnicliffe, J F; Kseble, S Min EI~r, VIAl, N239, Aug 1981,
P69-79
Describes the factors considered in the shaft design at the Selby Mine, Yerka~re, UK, and p r e s e n t s a case history of t h e a c t u a l s h a f t siring. Due to heavily water beariDg strata add associated Problems it was decided to freeze the shafts %0 a depth of IASm. Concrete was chosen as the shaft liniug, with cement grout injected to fill voids between llni~6 ar~ rock face. Chemical grouting was considered necessary to eliminate water inflow. 822119 STABILITY OF UNDERSEA WORKI~S AT LYNEMOUrH AND ELLINC~N COLLIERIES Tubby, J E; Farmer, I W Min Er4r, VIA1, N239, Aug 1981, P87-96 Describes the development of the Brass Thill seam at Lymemouth a~d Ellimgton Collieries, Ncrthmnberland, UK. The seam is situated beneath existing umdersea pillar workimgs. Results from an instrumentation ard observation programme at 2 test sites are s,-,mArised. Measurements were taken of: deformation of strata above the Brass Thill seam, deformation of the Main seam pillars, floor settlement and convergence. Results from this programme showed that uniermi~-d pillars in the Main seam remained stable a l t h c ~ there was wideslread collapse of rooms ani Junctions. It was shown that sea-bed settlements a~d strains would be much lower than expected. 822120 DESIGN AND O P ~ T I O N OF THREE METRE EXTRACTION FACES WITH HEAVY DUTY EQUIPMENT AT DAW MILL COLLIERY Drake, D; Wright, D M Min Engr, VIAl, N239, Aug 1981, P97-10A Outlines the development of equipment: powered suppers, armoured flexible conveyers a~i power loaders to improve safety, reliability amd productivity in thicker extractions. In particulsr the use of high support density and pump paakimg to combat severe roadway deformation at a depth of 600m is discussed. 822121 R O Y S ~ N DRIFT: NEW MINE - NEW TECHNIQUES Rourfl, C; Lewis, S
Min Engr, VIAl, ~238, July 1981, n7-24 Briefly outlines the m i ~ r ~ strategy adol~ted at the Royston D~Ift Mine, Yorkshirej UM, in the 1 ~ t of the geological coDdltions present. Also describes strata loedlng ar~ pull-down te~ts carried out on the new Caledonian arch system at a test site. Dense concrete backfill was found to increase the effectiveness of support. ~Vne tests confirn~ that the basis of this support s y s t e m ' s s t r e n g t h was t h e i n t e g r a t i o n o f i t s component p a r t s .