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Ground treatment of fill (in 2 parts)
~3A
these ~rocedures may apl~eciably increase resistance to liquefaction. Field data on liquefaction have been correlated with sta~iard penetration resistance. Use of such crude empirical correlations would have led to better practice in the last decade than reliance only on the results of scientific at~dies. DIZ~AMIC STRESS CONCENTRATION IN AN ELASTIC HALF SPACE WITH A S~MI°CIRCULAR CAVITY EXCITED BY SH WAVES Garner, U Int J Solids StrUct, rIB, NT, 1977, P675-681 Investigates the stress distribution ar~ dynamic stress concentration factor at the surface of a semi-clrctular cylindrical cavity, usimg wave function expansion for the incident wave am~ the reflected waves ani obtaining a closed form solutlor. Relates to the ~:W~arpretation of the surface effects of seismic waves near umd~grour~ cavities or foundations. RESEARCH NEEDS AND PRIORITIES FOR GEOTECHNICAL EARTHQUAKE ENGINEERTNG APPLICATIONS Lee, K L; Marcuson, W F; Stokoe, K H (,~t~s) Report of Workshop held at Universit~ of Texas, Austin, 2-3 June 1977, 13~P. Publ Austin: University of Texas, 1978 Reports a series of group discussions on the following topics: dynamic soil properties and their measurement in lab amd field, analytical procedures, modallimg aml simulation, groumd motion and surface faulting, seismic stability of soil, soil-structure intaraction.
Comminution of Rocks Drilling 796197 REVIEW OF WATER WELL DRILLING MEI'HODS cruse, E Q J Emgr~ Geol, VI2, N2, 1979, F79-95 Discusses cable-tool (percussion) drilllz~, rotary dr~lllmg with direct or reverse circulation, hydraulic tube racking, auger drilling, scow drilling, Jetting, direct and reverse air circulationj down-the-hole h~mmer drilling, turbine drilling, diamond drilliz~, chilled shot drilllmg, vibratory equipment, and the following drilling fluids: clay or bentonite, organic Polymers, air, and foam. 796198 DIAMOND PROBES POINT THE WAY AHEAD Herbert, S Turm Turaulg, Vll, N6, July-Au~ 1979, P41-~5 Reports the Imperial COllege - Transport anl Road Research Laboratory research project on the use af instrumented horizontal diamond drilllr~ to infer rock comditions, ahead of a tunnel face, for example. Experiments on a simulated layered rock system are described. The system mor~Itors rotary speed, head displacecent, thrust, inlet oil pressure, swash plate position, water flow rate, inlet water presses, outlet water pressure.
Crushing and grinding 7 % 1 9 9 GRINDABILITY ASSESSMEETS USING LABORATORY ROD MILL TESTS CUtting, G W C h ~ Engr, lo~don, N325, Oct i ~ , F702-70~
Cutting 796200 LABORATORY COMPARISON OF THREE ROCK CUTI~NG TOOLS Ht~rt, K G; Laidlaw, D D Tumm Tunnlg, VII, N~, May 1979, P!3-16 Laboratory measurements were made of the cuttim6 efficiemcy of rock cutting tools of the types used or. boom type t ~ l l i m g machines. A study of three tyP~csl rock cutting tools indicates that when cu~timg herd or abrasive rock, tool tip shape is probably not an important determinant of cutting efficiency when measured over the wh()le llfe of the tool. Tool type should be selected primarily or. lomge~ity and resistance to fracture.
7%2oz MECHANICAL ROCK EXCAVATION BY ROLLER C~A'A'r~ (IN JAPANESE) Kur iyagaw~, M National Research Institute for Pollution and Resources of Japan, N~, Dec i~77, 104P
Rock and Soil Improvement Techniques 7~202 G R O U ~ T R E A . ~
OF FZ~L (~ 2 PARTS)
Thomson, G H~ Pearce, R W Consult Emgr, V43, N2, Feb 1979, P29-3k (Part i), V43, N3, March 1979, P67-74 (Part 2) Types of fill ar~ methods of fillir~ are classified amd their perfcz~T~e without treatment is discussed. The followi~g non-specialist methods of treatment are discussed: ~reloadlng, i~r~ation, rollimg amd dewaterir~. Specialist techniqt~es discussed are vibroflotation, dynamic consolidation, grouting, explosive compaction amd sa~d drains.
7962o3 s m c ~
~ c m ~ Q o x s oF a~om~o ~ m IN ~Um W0m~S (IN SProUt) Muzas, F; Velilla, J L In: Proc World Congress on Water in Mimimg and U~de~grour~ Works (SIAMOS-78), Granada, spain s 18-22 Sept I~78, VI, P~01-~I0. Publ Grar~a: Asociacion Naciorml de Iz~emieros de Mi~as, 1978
Reviews soil treatments for deallmg with IrOblems of stability, permeability amd environmental contamination.
these ~rocedures may apl~eciably increase resistance to liquefaction. Field data on liquefaction have been correlated with sta~iard penetration resistance. Use of such crude empirical correlations would have led to better practice in the last decade than reliance only on the results of scientific at~dies. DIZ~AMIC STRESS CONCENTRATION IN AN ELASTIC HALF SPACE WITH A S~MI°CIRCULAR CAVITY EXCITED BY SH WAVES Garner, U Int J Solids StrUct, rIB, NT, 1977, P675-681 Investigates the stress distribution ar~ dynamic stress concentration factor at the surface of a semi-clrctular cylindrical cavity, usimg wave function expansion for the incident wave am~ the reflected waves ani obtaining a closed form solutlor. Relates to the ~:W~arpretation of the surface effects of seismic waves near umd~grour~ cavities or foundations. RESEARCH NEEDS AND PRIORITIES FOR GEOTECHNICAL EARTHQUAKE ENGINEERTNG APPLICATIONS Lee, K L; Marcuson, W F; Stokoe, K H (,~t~s) Report of Workshop held at Universit~ of Texas, Austin, 2-3 June 1977, 13~P. Publ Austin: University of Texas, 1978 Reports a series of group discussions on the following topics: dynamic soil properties and their measurement in lab amd field, analytical procedures, modallimg aml simulation, groumd motion and surface faulting, seismic stability of soil, soil-structure intaraction.
Comminution of Rocks Drilling 796197 REVIEW OF WATER WELL DRILLING MEI'HODS cruse, E Q J Emgr~ Geol, VI2, N2, 1979, F79-95 Discusses cable-tool (percussion) drilllz~, rotary dr~lllmg with direct or reverse circulation, hydraulic tube racking, auger drilling, scow drilling, Jetting, direct and reverse air circulationj down-the-hole h~mmer drilling, turbine drilling, diamond drilliz~, chilled shot drilllmg, vibratory equipment, and the following drilling fluids: clay or bentonite, organic Polymers, air, and foam. 796198 DIAMOND PROBES POINT THE WAY AHEAD Herbert, S Turm Turaulg, Vll, N6, July-Au~ 1979, P41-~5 Reports the Imperial COllege - Transport anl Road Research Laboratory research project on the use af instrumented horizontal diamond drilllr~ to infer rock comditions, ahead of a tunnel face, for example. Experiments on a simulated layered rock system are described. The system mor~Itors rotary speed, head displacecent, thrust, inlet oil pressure, swash plate position, water flow rate, inlet water presses, outlet water pressure.
Crushing and grinding 7 % 1 9 9 GRINDABILITY ASSESSMEETS USING LABORATORY ROD MILL TESTS CUtting, G W C h ~ Engr, lo~don, N325, Oct i ~ , F702-70~
Cutting 796200 LABORATORY COMPARISON OF THREE ROCK CUTI~NG TOOLS Ht~rt, K G; Laidlaw, D D Tumm Tunnlg, VII, N~, May 1979, P!3-16 Laboratory measurements were made of the cuttim6 efficiemcy of rock cutting tools of the types used or. boom type t ~ l l i m g machines. A study of three tyP~csl rock cutting tools indicates that when cu~timg herd or abrasive rock, tool tip shape is probably not an important determinant of cutting efficiency when measured over the wh()le llfe of the tool. Tool type should be selected primarily or. lomge~ity and resistance to fracture.
7%2oz MECHANICAL ROCK EXCAVATION BY ROLLER C~A'A'r~ (IN JAPANESE) Kur iyagaw~, M National Research Institute for Pollution and Resources of Japan, N~, Dec i~77, 104P
Rock and Soil Improvement Techniques 7~202 G R O U ~ T R E A . ~
OF FZ~L (~ 2 PARTS)
Thomson, G H~ Pearce, R W Consult Emgr, V43, N2, Feb 1979, P29-3k (Part i), V43, N3, March 1979, P67-74 (Part 2) Types of fill ar~ methods of fillir~ are classified amd their perfcz~T~e without treatment is discussed. The followi~g non-specialist methods of treatment are discussed: ~reloadlng, i~r~ation, rollimg amd dewaterir~. Specialist techniqt~es discussed are vibroflotation, dynamic consolidation, grouting, explosive compaction amd sa~d drains.
7962o3 s m c ~
~ c m ~ Q o x s oF a~om~o ~ m IN ~Um W0m~S (IN SProUt) Muzas, F; Velilla, J L In: Proc World Congress on Water in Mimimg and U~de~grour~ Works (SIAMOS-78), Granada, spain s 18-22 Sept I~78, VI, P~01-~I0. Publ Grar~a: Asociacion Naciorml de Iz~emieros de Mi~as, 1978
Reviews soil treatments for deallmg with IrOblems of stability, permeability amd environmental contamination.