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Rock excavation with laser assistance. 19F, 13R
107A
of failure of the slope may be highly uncoaservative and me~ predict incorrectly even the signs of changes in the slope reliability with changes in paramater values. Auth.
~016 SNITBHAN, N Plasticity solutic~s for slopes in anisotropic, in. h o ~ e n e o u s soils. Thesis. D .THESIS, I~IGH UNIV. P~2~N.USA, 1975,181P. 1017 HOCKING, G IMP.COLL.SCI .TECH. jLONDON, GB A method for distinguishin~ between single and d o u b l e p l a n e s l i d i n g of t e t r a h e d r a l wedges. T e c h n i c a l n o t e . ~F,IR. INT.J.ROCK MECH .MIN.SC I.GEOMECH. ABSTR., VI3, N7, JULY, 1976,P225-226. The methc~l is based on t.~e use of stereoEraphlc proj ect i o n , and assumes only body forces and hydrostatic forces are acting. 1018 HRAY, JW IMP .COLL.SCI .TECHN .LONDON,GB BROWN, ET I ~ .COLL.SCI. TECHN .LONDONj GB A short solution for the stability of a rock slope containing a tetrahedral wedge. Technical note.iF,TR. INT .J .ROCK MECH .MIN .8CI .GEOMECH .ABSTR. ,VI~,NT, JULY, 1976,P227-229. The Problem is e~-m~ned using vector mechanics and a co,act solution is presented, intended to be followed easily by an engineer workin~ with an electronic calculator. 1019 CRUDEN, D~ UNIV .ALB~TA, CDN A com~site net for the rapid analysis of rock slope stability. 2F,3R. Q.J.ENGNG .GEOL. ,vg,N2,1976,PI19-12~. The composite net, a combination of a polar equal area net and the great circles of a Schmidt net, simplifies the rapid analysis of rock slope stability by Markland's method. It reduces the number of overlays necessary to one plain t r ~ p a r e n t sheet and reduces to one the n ~ e r of rotations of the overla7 during the ~raphical constru=ticks. Auth. 1020 FOOKE~,PG SWE~EY,M R~DEL, P ~ & TRITION,LONDON, GB Stabilization and control of Io=-1 rock falls and de~ra~ing rock slopes. IIF, IT,17R. Q.J. ~ G N G .GEOL. ,V9,NI, 1976 jP37- 55. The pal~-r describes design and construction techniques for the stabilization and control of local rockf-11, and the Products of general degradation from rock slopes. Stabilization measures a r e discussed and illustrated by a series of idealized cross-sections and examples. Simple ncmo@~sms are developed for the desisn of roekbolt installations and rock-trap ditches. Auth.
Earth retaining structures
conditions, the stress state within the wall is approximately the ke carnalities, and the backfill Just behind the wall approaches the k~ condition. The boundJ~ry geometry of the backfill, the foundation, and the com~esslbility of the foundation -~terial intimately affect the m~nltU~e and distribution of the relnforcing strip forces. Desisn procedures based on possible failure modes for the determination of sizej spacit~, and length of reinforcing strips are considered. Auth.
Base courses and pavements 1022 F ~ . HIGHW. CO~. A 1975 World survey of current research and development on roads and road transport. Figs,Tabls,Refs. I~.ROAD FED.WASHIN~N D.C .CONTRACT NO.IX)T-FH-II-7656, DEC. 1975,738P. This report presents a survey of current projects on road and road transport in fortynine countries. Each country is reviewed separately and brief details of on~ing projects are give~. There are com~ehensive indexes, by subject area, to IRF project numbers, for the United States and for the other countries. 1023 RHODES,AH Highways in Western Australia - A personal view.SF,2T,6R THE HIGHWAY ~GR,V23,N4,APRIL 1976,P6-14.
1024 SARGIOUS, MA ROSS,GA L-W~DAL,GA Curllng deformaticrm and stress of insulated rigid ~avements. 8F, 8R. CAN.J .CIV.~GNG,V2, N3,1975,1~45-252.
Comminution of rocks See also abstract: 999.
lo25 JUREWICZ, ~R UN .TECHN .RES.C ~ , E .HARTFORD, USA ROck excavation with laser assiste~ce. 19F,13R. INT.J.ROCK MECH.MIN.SCI.GEOMECH.ABSTR. VI3,N7,JULY, 1976,P207-219.
Rock fracture under dynamic stresses lo26 LUNDB~G, B UNIV .LULEA,S A Split Hopkluson Bar study of energy absorbtism in d~c r o c k fragmentation. 13F,4T,IIR. INT.J.ROCK MECH.MIN. SC I .GEOMECH.ABSTR .,VI3,N6, JUNE, 1976,P187-197.
1021 SH~jC.K
R~,EM HERRMANN, LR Iute~ated study of reinforced earth - II: Behaviour and design. IOF,2T,6R. J .GEGTECH .~GNG DIV .ASCE,VI02, OT6, JUNE, 1976, P577- 590. An a~alytlcal study u s i ~ t h e finite ele~ent me~1od of an instrumented reinforced earth wall com~cucted in Southern California is described. The anal~tlcal results are compared with the field p e r f ~ e data to illustrate the overall behaviour of the structure. It is concluded that a reinforced earth wall is a relativeI~ r i 6 i d self-SUplx~rtin~ unit for which, under normal
Drilling lO27 ANONY~S Deeper holes, blgger c o r e s ~ i t h new d~m-mwl drill. IF. AUST .MZN. ,V68, N4,APRIL 1976,1>21. 1028
SU~0WSKI,H Statistical investigatic~ about "the calculation of the drilling rate with percussive d r i l ~ . (In
of failure of the slope may be highly uncoaservative and me~ predict incorrectly even the signs of changes in the slope reliability with changes in paramater values. Auth.
~016 SNITBHAN, N Plasticity solutic~s for slopes in anisotropic, in. h o ~ e n e o u s soils. Thesis. D .THESIS, I~IGH UNIV. P~2~N.USA, 1975,181P. 1017 HOCKING, G IMP.COLL.SCI .TECH. jLONDON, GB A method for distinguishin~ between single and d o u b l e p l a n e s l i d i n g of t e t r a h e d r a l wedges. T e c h n i c a l n o t e . ~F,IR. INT.J.ROCK MECH .MIN.SC I.GEOMECH. ABSTR., VI3, N7, JULY, 1976,P225-226. The methc~l is based on t.~e use of stereoEraphlc proj ect i o n , and assumes only body forces and hydrostatic forces are acting. 1018 HRAY, JW IMP .COLL.SCI .TECHN .LONDON,GB BROWN, ET I ~ .COLL.SCI. TECHN .LONDONj GB A short solution for the stability of a rock slope containing a tetrahedral wedge. Technical note.iF,TR. INT .J .ROCK MECH .MIN .8CI .GEOMECH .ABSTR. ,VI~,NT, JULY, 1976,P227-229. The Problem is e~-m~ned using vector mechanics and a co,act solution is presented, intended to be followed easily by an engineer workin~ with an electronic calculator. 1019 CRUDEN, D~ UNIV .ALB~TA, CDN A com~site net for the rapid analysis of rock slope stability. 2F,3R. Q.J.ENGNG .GEOL. ,vg,N2,1976,PI19-12~. The composite net, a combination of a polar equal area net and the great circles of a Schmidt net, simplifies the rapid analysis of rock slope stability by Markland's method. It reduces the number of overlays necessary to one plain t r ~ p a r e n t sheet and reduces to one the n ~ e r of rotations of the overla7 during the ~raphical constru=ticks. Auth. 1020 FOOKE~,PG SWE~EY,M R~DEL, P ~ & TRITION,LONDON, GB Stabilization and control of Io=-1 rock falls and de~ra~ing rock slopes. IIF, IT,17R. Q.J. ~ G N G .GEOL. ,V9,NI, 1976 jP37- 55. The pal~-r describes design and construction techniques for the stabilization and control of local rockf-11, and the Products of general degradation from rock slopes. Stabilization measures a r e discussed and illustrated by a series of idealized cross-sections and examples. Simple ncmo@~sms are developed for the desisn of roekbolt installations and rock-trap ditches. Auth.
Earth retaining structures
conditions, the stress state within the wall is approximately the ke carnalities, and the backfill Just behind the wall approaches the k~ condition. The boundJ~ry geometry of the backfill, the foundation, and the com~esslbility of the foundation -~terial intimately affect the m~nltU~e and distribution of the relnforcing strip forces. Desisn procedures based on possible failure modes for the determination of sizej spacit~, and length of reinforcing strips are considered. Auth.
Base courses and pavements 1022 F ~ . HIGHW. CO~. A 1975 World survey of current research and development on roads and road transport. Figs,Tabls,Refs. I~.ROAD FED.WASHIN~N D.C .CONTRACT NO.IX)T-FH-II-7656, DEC. 1975,738P. This report presents a survey of current projects on road and road transport in fortynine countries. Each country is reviewed separately and brief details of on~ing projects are give~. There are com~ehensive indexes, by subject area, to IRF project numbers, for the United States and for the other countries. 1023 RHODES,AH Highways in Western Australia - A personal view.SF,2T,6R THE HIGHWAY ~GR,V23,N4,APRIL 1976,P6-14.
1024 SARGIOUS, MA ROSS,GA L-W~DAL,GA Curllng deformaticrm and stress of insulated rigid ~avements. 8F, 8R. CAN.J .CIV.~GNG,V2, N3,1975,1~45-252.
Comminution of rocks See also abstract: 999.
lo25 JUREWICZ, ~R UN .TECHN .RES.C ~ , E .HARTFORD, USA ROck excavation with laser assiste~ce. 19F,13R. INT.J.ROCK MECH.MIN.SCI.GEOMECH.ABSTR. VI3,N7,JULY, 1976,P207-219.
Rock fracture under dynamic stresses lo26 LUNDB~G, B UNIV .LULEA,S A Split Hopkluson Bar study of energy absorbtism in d~c r o c k fragmentation. 13F,4T,IIR. INT.J.ROCK MECH.MIN. SC I .GEOMECH.ABSTR .,VI3,N6, JUNE, 1976,P187-197.
1021 SH~jC.K
R~,EM HERRMANN, LR Iute~ated study of reinforced earth - II: Behaviour and design. IOF,2T,6R. J .GEGTECH .~GNG DIV .ASCE,VI02, OT6, JUNE, 1976, P577- 590. An a~alytlcal study u s i ~ t h e finite ele~ent me~1od of an instrumented reinforced earth wall com~cucted in Southern California is described. The anal~tlcal results are compared with the field p e r f ~ e data to illustrate the overall behaviour of the structure. It is concluded that a reinforced earth wall is a relativeI~ r i 6 i d self-SUplx~rtin~ unit for which, under normal
Drilling lO27 ANONY~S Deeper holes, blgger c o r e s ~ i t h new d~m-mwl drill. IF. AUST .MZN. ,V68, N4,APRIL 1976,1>21. 1028
SU~0WSKI,H Statistical investigatic~ about "the calculation of the drilling rate with percussive d r i l ~ . (In