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Stress distribution in triaxial compression samples
116A
i13~ WONG~ HY CEMENTATION RES. LTD. RICKNANSWORTH, GB Some design amd perfcrmsmce considerations of diaphragm type pressure cells using strain gauges; Techz~ical note. ~F, tR. GEOTECHNIQUE, V24, NI,MAR. 1974, P93-99. The effect of non-unlform stress distribution on a diaphragm type earth pressure cell using strain gauges on the active diaphragm is investigated, with the intention of finding some means to minimize the effect of non-unlfca~m pressure distribution in the initial design stage of the earth-pressure cell °
The Wsxman-Smlts physical model for describing conductivity in ahaly-sard has been extended to allow for oil-bearing sands, and the required assumptions have been confirmed by laboratory measurements; A conclusion from the tests is that the effective concentration of clay-exchange cations increases in proportion to the decrease in water saturation. The temperature coefficients of electrical comductivity for a group of shaly-sanls were measured and these data were treated by the same model.
Permeability and capillarity Granular materials and influence of interlo.cking i135 MCCABE,RP MCCABE, D~A/VEY ASSOC .DUBLIN, IRL Flow patterns in granular material in circular silos. 20F,2T,44R. GEOTECHNI QUE, V24, N1, MAR. 1974, P45-62. An investigation into the actual flow patterns in granular fill during discharge from tall silos is described. Model silos of different sizes were used and three separate gradings of fine gravel fill were tested for various port openings centrally located. Two methods of investigating the nature of flow were employed, concentric cylinders of coloured gravel fill and rsdioactive labelling. The work indicated four separate zones of flow occurlng within the fill.
Time-dependent behavior ii36 ABELEV jMI POPOV, AZ Experimental study of the creep of weak clay soils under compression and under stress relaxation. In Russian; MOSCOW. INZREN. STROIT. INST. SBORNIK TRUDOV, NIl5,1973, Pi31-145. 1137 THOMPSON, EG COLORADO STATE UNIV.FORT COLLINS,USA SAYLES,FH US ARMY C.R.R.E.L.HANOVER,USA In-sltu creep analysis of room in frozen soil. Closure of discussion of original paper (J.Soil Mech. Fourzl.Div. Sept. 1972 ). 2F, 3R. J. GEOTECH. ENGI~3.DIV .V100, GT2, FEB. 1974, P179-181. The authors present details of the test apparatus used in the creep tests to a h ~ hc~ a constant stress ~as maintained. They maintain that the evidence for the accuracy of log-log representation Justifies its use. The method suggested for predicting the deformation of frozen soll in the design of a complex structure is to pe{ferm creep tests on the soil from */%e site, and fr~n these tests to determine a ::~easonable constitutive theory. With this expression, the finite element method, cr another ~ethod of analysis m~y be applied to the design of the etructure s •
Physico-chemical properties 1138 WAXMAN, MH THCMAS, EC Electrical eonduetivltles in shaly-sands, i. The relation between hydrocarbon saturation and resistivity index. 2. The temperature coefficient of electrical conductivity; 18F, 7T, 17R. J. PETROLEUM TECH.V26, N1,1974, P213-22-5.
i139 MUNDI, EK WALLACE, JR On the permeability of some fractured tryst :~hl~ne rocks; 4F, 20R. BULL .ASSOC. ENGNG. GEOL .VI0, N4,1973, P299-312. This paper summarizes methods of field permeability measurements, and presents permeability coefficients measured, using packer tests at wtrlous s~tes in fractured schists and gnelsses in the South~:rn Piedmont. Results from these tests ahow highly skewed distributions with most 1>ermeabillt/ coefficients less than lO0 feet per year. f;o obvious relationship of permeability coefficLent to depth is observed for most of the field d~ffc~. Auth. i140 WII/
Hughes.
Compressibility,swelling and consolidation See also abstract: 1284. i141 KIRKPATRICK, WM UNIV. STRATHCLYDE, GLASC~4, GB SEALSj RK UNIV.W. VIRGINIA MORGA/Vf~;N,USA N E ~ , FB GEN. ANALYT. INC. P l ~ S ~ G H , USA Stress distribution in trlaxlal compression samples. Technical note. 2F, llR. J. GEOTECH. EHGNG. DIV .VlO0, GT2, FEB. 1974, P190-i(,6. 1142 BROWN, El JAMES COOK UNIV. QUEENSIA~D, AL'S GONANO, LP Iml~oved compression test technique for sof~. rock. Technical note; 3F, tR. J. GEOTECH. ENGNG. DIV.VI00, GT2, FEB. 1974, P196-I~9. A set of brush platens specially desigr~d arfl constructed for the In,pose has proved effective in overcoming the well-known effects of end restca!nt in unlaxlal comlm~esslon tests on soft rock;
i13~ WONG~ HY CEMENTATION RES. LTD. RICKNANSWORTH, GB Some design amd perfcrmsmce considerations of diaphragm type pressure cells using strain gauges; Techz~ical note. ~F, tR. GEOTECHNIQUE, V24, NI,MAR. 1974, P93-99. The effect of non-unlform stress distribution on a diaphragm type earth pressure cell using strain gauges on the active diaphragm is investigated, with the intention of finding some means to minimize the effect of non-unlfca~m pressure distribution in the initial design stage of the earth-pressure cell °
The Wsxman-Smlts physical model for describing conductivity in ahaly-sard has been extended to allow for oil-bearing sands, and the required assumptions have been confirmed by laboratory measurements; A conclusion from the tests is that the effective concentration of clay-exchange cations increases in proportion to the decrease in water saturation. The temperature coefficients of electrical comductivity for a group of shaly-sanls were measured and these data were treated by the same model.
Permeability and capillarity Granular materials and influence of interlo.cking i135 MCCABE,RP MCCABE, D~A/VEY ASSOC .DUBLIN, IRL Flow patterns in granular material in circular silos. 20F,2T,44R. GEOTECHNI QUE, V24, N1, MAR. 1974, P45-62. An investigation into the actual flow patterns in granular fill during discharge from tall silos is described. Model silos of different sizes were used and three separate gradings of fine gravel fill were tested for various port openings centrally located. Two methods of investigating the nature of flow were employed, concentric cylinders of coloured gravel fill and rsdioactive labelling. The work indicated four separate zones of flow occurlng within the fill.
Time-dependent behavior ii36 ABELEV jMI POPOV, AZ Experimental study of the creep of weak clay soils under compression and under stress relaxation. In Russian; MOSCOW. INZREN. STROIT. INST. SBORNIK TRUDOV, NIl5,1973, Pi31-145. 1137 THOMPSON, EG COLORADO STATE UNIV.FORT COLLINS,USA SAYLES,FH US ARMY C.R.R.E.L.HANOVER,USA In-sltu creep analysis of room in frozen soil. Closure of discussion of original paper (J.Soil Mech. Fourzl.Div. Sept. 1972 ). 2F, 3R. J. GEOTECH. ENGI~3.DIV .V100, GT2, FEB. 1974, P179-181. The authors present details of the test apparatus used in the creep tests to a h ~ hc~ a constant stress ~as maintained. They maintain that the evidence for the accuracy of log-log representation Justifies its use. The method suggested for predicting the deformation of frozen soll in the design of a complex structure is to pe{ferm creep tests on the soil from */%e site, and fr~n these tests to determine a ::~easonable constitutive theory. With this expression, the finite element method, cr another ~ethod of analysis m~y be applied to the design of the etructure s •
Physico-chemical properties 1138 WAXMAN, MH THCMAS, EC Electrical eonduetivltles in shaly-sands, i. The relation between hydrocarbon saturation and resistivity index. 2. The temperature coefficient of electrical conductivity; 18F, 7T, 17R. J. PETROLEUM TECH.V26, N1,1974, P213-22-5.
i139 MUNDI, EK WALLACE, JR On the permeability of some fractured tryst :~hl~ne rocks; 4F, 20R. BULL .ASSOC. ENGNG. GEOL .VI0, N4,1973, P299-312. This paper summarizes methods of field permeability measurements, and presents permeability coefficients measured, using packer tests at wtrlous s~tes in fractured schists and gnelsses in the South~:rn Piedmont. Results from these tests ahow highly skewed distributions with most 1>ermeabillt/ coefficients less than lO0 feet per year. f;o obvious relationship of permeability coefficLent to depth is observed for most of the field d~ffc~. Auth. i140 WII/
Hughes.
Compressibility,swelling and consolidation See also abstract: 1284. i141 KIRKPATRICK, WM UNIV. STRATHCLYDE, GLASC~4, GB SEALSj RK UNIV.W. VIRGINIA MORGA/Vf~;N,USA N E ~ , FB GEN. ANALYT. INC. P l ~ S ~ G H , USA Stress distribution in trlaxlal compression samples. Technical note. 2F, llR. J. GEOTECH. EHGNG. DIV .VlO0, GT2, FEB. 1974, P190-i(,6. 1142 BROWN, El JAMES COOK UNIV. QUEENSIA~D, AL'S GONANO, LP Iml~oved compression test technique for sof~. rock. Technical note; 3F, tR. J. GEOTECH. ENGNG. DIV.VI00, GT2, FEB. 1974, P196-I~9. A set of brush platens specially desigr~d arfl constructed for the In,pose has proved effective in overcoming the well-known effects of end restca!nt in unlaxlal comlm~esslon tests on soft rock;