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French recommendations, international studies, laboratory research on the mechanics of solids (in French)
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793232 FUNDAMENTAL S'~DIES ON THE MECKANICS OF CUTTING ROCK WITH DISCS Ru~orough, F F Paper to 3rd Australian Ttt-/~__ 11 ~ ~g Conf~enee, S~y, 12-15 SePt 1978, 5P A mathematical model is developed for disc cutters, describing ~he effects of the l~rincipal variables of edge a ~ e , diameter, pene~ration, line sp~cing a ~ rock s t ~ e r ~ on disc performance. The model is found to be in good a~reemeut with experimental results obtained from several sources. Auth. Avail: Instn of Engineers, Australia, ii Natio~sl Circuit, Barton, ACT 2600, Australia
793236 ~
STANDARD SIA 191 'GROUND ARUHORS'. ~}~RAL Fa~re, R In: Publ Swiss Soc Soll Rock Meah, Ng@, 1978 (proc Spring meeting on Ground Amch~s, La%umu~e, 21-22 April 1978), 3P
Discusses the scope amd content of a new Swiss stardard. 793237 GROUND ANCHORS: R E ~ S , T E ~ I ~ AND MEA~3REMENT. THE NEW STANDARD SIA 191 (IN GERmAN) Hurls, J In: Publ Swiss Soc Soil Rock Mech, ~ 8 , 1978, (proc Spring meeting on Groumd Anchors, Lausamne, 21-22 A ~ i l 1978), 9P 793238 FRENCH RECCMMENDATIONS,
INterNatIONAL STUDIES,
Rock and Soil ImprOvement Techniques
um~ORY ~cH (IN m ~ c H )
Bolts and anchors
A brief overview of suggested methods f ~ ing tests on ground a~ch~s.
See a l s o : 793145 793233 SPLIT-SET ROCK BOLT ANALYSIS Davis, R L Int J Rock Mech FAin Sci, VI6~ NI, Feb 1979, Pl-10 A ~ s t e m ~f twelve equations have been developed for the elastic-plastic analysis of split-set roof bolts. Typical solutions have been presented in graphical form for comparison with experimental data. The results compare favourably for most of the split-sets tested providing the system parameters are properly specified. The solutions have been put in gral~hical form. Plots of the effects of the various parameters (material strength, material straln-hardenimg, friction, thickness, radius, amgle o f contact) on the holding capacity of split-sets are In"e sented. 793234 ULTIMATE RESISTANCE OF DEEP VERTICAL ANCHOR IN SAND. TECHNICAL NOTE Das, B M; Seeley, G R; Das, S C Soils Found, VI7, N2, June 1977, P52-56 Presents model test results which are compared with those predicted by theory for a vertical square -~chor plate in loose to dense sa~i, and shows the relationship between breakout factor and the angle of friction of sand. 793235 GROUND ANCHORS (IN FRENCH AND GERMAN) PUbl Swiss SOC Soil ROCk Mech, N ~ , 1978, 100P The publication comprises 14 papers frmm the Spring meeting of the Swiss Society for Soil and Rock Mechanlcs~ held in Lausanne on 21-22 April 1978, together with a review ~f the meeting. The papers are given separate entries in this issue.
oN ~
~A~CS
OF m U ~ S
Habib, P In: I ~ i Swiss Soc Soil Rock Mech, N ~ , 1978 (Proc Spring meeting on Ground Anchors, Lausanne, 21-22 April 1978), 3P load-
793239 DIMENSlONI~ OF ANCHORS UNDERGROUND (IN FRENCH) Egger, P In: Publ Swiss Soc Soil Rock Mech, N98, 1978 (Proc Spring meeting on Ground Anchors, Lausanne, 21-22 April 1978), 6P A thearetical consideration of the size and positioning of anchors in tunnels driven through three different types of rock mass: I) rock which is m ~ n l y stable but with Iocalised zones of instability, 2 ) fractured rock, 3 ) swelli~ rock. 793240 C ~ I O N OF FREE ANCHOR LENGTH IN ANCHOP~D EXCAVATION WALLS TAKING INTO CONSIDERa~ION THE s~
~OAR9
W~
~
(IN GEm~a)
Huder, J; Arnold, R In: Publ Swiss SOC Soil Rock Mech, N98, 1978 (Prom Spring meeting on Groumd Anchors, Lausamme, 21-22 April 1978) , 6P 793241 ILLUSTRATION OF THE APPLIC~ION OF SIA STANDARD 191. ~JILDING SITE OF THE SBB ~ LINE,
~cTION 8 (IN Gm~aN) Honold, P In: Publ Swiss Soc Soil Rock Mech, N98, 1978 (Prom Spring meeting on Ground Anchors, Lausanne, 21-22 April 1978), 5P Discusses the use amd testing of ground anchors in a Swiss Railways (S~B) project, where a s i p gle track r ~ l w a y is being expanded to double track, ard a secord new double track is being laid alongside, at a depth of about 5m. 793242 A I ~ I O N OF EARTH PRESSURES ON EXCAV~ION WALLS BY ANCHORS IN ALLUVIUM Wackermagel, A; Schlegel, H J In: Publ Swiss Soc Soil Rock Mseh, N98, 1978 (Proc Spring meeting on Grounl Anchors, Lausanne, 21-22 April 1978), 5P Relates to the stremgthenimg of deep excavations for buildimgs in Basel, Switzerland, on
793232 FUNDAMENTAL S'~DIES ON THE MECKANICS OF CUTTING ROCK WITH DISCS Ru~orough, F F Paper to 3rd Australian Ttt-/~__ 11 ~ ~g Conf~enee, S~y, 12-15 SePt 1978, 5P A mathematical model is developed for disc cutters, describing ~he effects of the l~rincipal variables of edge a ~ e , diameter, pene~ration, line sp~cing a ~ rock s t ~ e r ~ on disc performance. The model is found to be in good a~reemeut with experimental results obtained from several sources. Auth. Avail: Instn of Engineers, Australia, ii Natio~sl Circuit, Barton, ACT 2600, Australia
793236 ~
STANDARD SIA 191 'GROUND ARUHORS'. ~}~RAL Fa~re, R In: Publ Swiss Soc Soll Rock Meah, Ng@, 1978 (proc Spring meeting on Ground Amch~s, La%umu~e, 21-22 April 1978), 3P
Discusses the scope amd content of a new Swiss stardard. 793237 GROUND ANCHORS: R E ~ S , T E ~ I ~ AND MEA~3REMENT. THE NEW STANDARD SIA 191 (IN GERmAN) Hurls, J In: Publ Swiss Soc Soil Rock Mech, ~ 8 , 1978, (proc Spring meeting on Groumd Anchors, Lausamne, 21-22 A ~ i l 1978), 9P 793238 FRENCH RECCMMENDATIONS,
INterNatIONAL STUDIES,
Rock and Soil ImprOvement Techniques
um~ORY ~cH (IN m ~ c H )
Bolts and anchors
A brief overview of suggested methods f ~ ing tests on ground a~ch~s.
See a l s o : 793145 793233 SPLIT-SET ROCK BOLT ANALYSIS Davis, R L Int J Rock Mech FAin Sci, VI6~ NI, Feb 1979, Pl-10 A ~ s t e m ~f twelve equations have been developed for the elastic-plastic analysis of split-set roof bolts. Typical solutions have been presented in graphical form for comparison with experimental data. The results compare favourably for most of the split-sets tested providing the system parameters are properly specified. The solutions have been put in gral~hical form. Plots of the effects of the various parameters (material strength, material straln-hardenimg, friction, thickness, radius, amgle o f contact) on the holding capacity of split-sets are In"e sented. 793234 ULTIMATE RESISTANCE OF DEEP VERTICAL ANCHOR IN SAND. TECHNICAL NOTE Das, B M; Seeley, G R; Das, S C Soils Found, VI7, N2, June 1977, P52-56 Presents model test results which are compared with those predicted by theory for a vertical square -~chor plate in loose to dense sa~i, and shows the relationship between breakout factor and the angle of friction of sand. 793235 GROUND ANCHORS (IN FRENCH AND GERMAN) PUbl Swiss SOC Soil ROCk Mech, N ~ , 1978, 100P The publication comprises 14 papers frmm the Spring meeting of the Swiss Society for Soil and Rock Mechanlcs~ held in Lausanne on 21-22 April 1978, together with a review ~f the meeting. The papers are given separate entries in this issue.
oN ~
~A~CS
OF m U ~ S
Habib, P In: I ~ i Swiss Soc Soil Rock Mech, N ~ , 1978 (Proc Spring meeting on Ground Anchors, Lausanne, 21-22 April 1978), 3P load-
793239 DIMENSlONI~ OF ANCHORS UNDERGROUND (IN FRENCH) Egger, P In: Publ Swiss Soc Soil Rock Mech, N98, 1978 (Proc Spring meeting on Ground Anchors, Lausanne, 21-22 April 1978), 6P A thearetical consideration of the size and positioning of anchors in tunnels driven through three different types of rock mass: I) rock which is m ~ n l y stable but with Iocalised zones of instability, 2 ) fractured rock, 3 ) swelli~ rock. 793240 C ~ I O N OF FREE ANCHOR LENGTH IN ANCHOP~D EXCAVATION WALLS TAKING INTO CONSIDERa~ION THE s~
~OAR9
W~
~
(IN GEm~a)
Huder, J; Arnold, R In: Publ Swiss SOC Soil Rock Mech, N98, 1978 (Prom Spring meeting on Groumd Anchors, Lausamme, 21-22 April 1978) , 6P 793241 ILLUSTRATION OF THE APPLIC~ION OF SIA STANDARD 191. ~JILDING SITE OF THE SBB ~ LINE,
~cTION 8 (IN Gm~aN) Honold, P In: Publ Swiss Soc Soil Rock Mech, N98, 1978 (Prom Spring meeting on Ground Anchors, Lausanne, 21-22 April 1978), 5P Discusses the use amd testing of ground anchors in a Swiss Railways (S~B) project, where a s i p gle track r ~ l w a y is being expanded to double track, ard a secord new double track is being laid alongside, at a depth of about 5m. 793242 A I ~ I O N OF EARTH PRESSURES ON EXCAV~ION WALLS BY ANCHORS IN ALLUVIUM Wackermagel, A; Schlegel, H J In: Publ Swiss Soc Soil Rock Mseh, N98, 1978 (Proc Spring meeting on Grounl Anchors, Lausanne, 21-22 April 1978), 5P Relates to the stremgthenimg of deep excavations for buildimgs in Basel, Switzerland, on