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Strain-stress and failure of clays
78A
Granular materials and influence of interlocking
Physico-chemical properties
See also abstract: 792.
729 SHASTKEVICH, IU Temperature waves in a two layer medi~. In Russian. 5R. PROBLEMY GEOKRIGLOGII, N O V 0 S I B ~ , NAUKA, 1973,P37-49. Interpretation of tempera%nn-e measurements is complicated by the ~ifference in thermal properties of rock layers. For l~actical purposes, it can be assumed that these properties are constant when ar~ surface below the active layer is considered as the half-space surface. A two-layer problem concerning periodic variation of the half-space surface temperature~ is solved by the Laplace transform method. The results ~ n e d are sttitable for analysing temperature wave parameters.
726 NELSON,JD ASIAN INST .TECHNOL.BANGEDK, T l~luence of clay fabric on bonds er~ dilatation; Internatv Syrup; on Soil S t r ~ e ~ Gothenblxrg, 1973. ~F, 5R. S W ~ I ~ GEOI~CHNICAL SOCI~Y, STOCKHC~M,1973,PI53-160. ~srr~n~s concept of the mechanism of dilatation is dlacnssed and results are presented to illustrate the effect of soll structure on dilatationsl characteristics, ar~ hence~ %he development of dia~enetic bo~Is. It was seen T~at clays having a m~11 amottrf~of physical particle interaction (bentonite) exhibit a m 1 1 e r s ~ of stored sfarain e ~ r ~ y d~ring consolidation and a lesser temdency to dilate than do soils which have mere l~kValcal interaction ( B a ~ o k Clay ar~ kaolinite) ; The ter~emcy to dilate was directly related to the ability for diagenetic bonds to f ~ m in %he soil. Auth.
727 YONG, RN MOGILL UNIV. MONTREAL, CDN SH~,DE MCGILL UNIV.MONTREAL, CDN Fabric unit interaction and soil behavio~r. Internat. Syrup; on Soil S ~ t u r e , Gothenburg, 1973. 5F,6R. ~ISH GE~CAL SOCIETY, STOCEHOLM,1973, P176-183. There are two apl~oeches tO predicting the behaviour of soils based on fabric analyses. In the first case it is assumed that consideration of the interaction between individual particles will lead directly to l~ediction of b e h a v i ~ , while~ in the secomd case the soil is assumed to be ec~pcsed of groups of particles ccm~islng a "fabric unit". A knowledge of particle-particle interaction will lead to an understemd±ng of the integrity of the irdividual fabric unit but a consideration of fabric unit interaction is also necessary in prediction of soil behaviour. In concerning itself with the latter approach, ~/~is study has p r e s ~ i) a scheme for classification of fabric units~ 2) implications of the fabric unit interaction concept using consolidation as an example, ard 3) a statistical-mathematical basis which has been used in the formulation of analytical techniques leading to soil behavio~r prediction.
730 SAADA,AS OU, CD Strain-stress ar~ faille of clays. 7F, ST,18R. J. SOIL MECH .FOUND,DIV.V99, ~MI2,1973, PI091-1111. Different degrees of a~isotropy were imduced through one-d~m~nsional consolidation in three types of clay; For each degree of anisotropy, a pneumatic analog compt~ter was used to subject the clay to variou~ stress paths. The results are used to check the validity of strain-stress relations of an incremental matte ard to examine a failure criterion due %o Gol'denblat and Kopnov.
731 TROFIMENKOV, YG FUNDAMENT PROECT INST.MOSCOW,SU Practical method of determining the angle of internal friction and the cohesion of soils from the data from pressure-meter tests. 3F, IT,4R. SOIL M E C H . F O U I ~ O N ENG.V10,N3,1973,P200-202. Data from press~emeter tests permit obtainimg the relation between the l~essure on soil in the wall of a well and the deformation of the soil. Formulae are given representing the relations.
Compressibility,swelling and consolidation 732
728
KSENOFONPOVjA I
~,~ITI.'l;'~', I,..T UNIVo L~nS, GB CABRERA,JG UNIV. ~R~DS, GB HAMMOND, C UNIV.L~S, Particle nature in sensitive soils amd its relation to soll structure and geotechnlcal properties. Internat~ Syrup; on Soil Shructure~ Gothenburg, 1973, 16R. SWEDISH GEOTECHNICAL SOCIETY, STOCKHOLM, 1973, P184-I~. Very sensitive soils Owe their extraordinary properties to the predomlnsmce of short ramge bonds in soil system. There are two ways of accounting for the presence of short rar~e interperticle bonding forces: they are either intrinsic in the system due to a predominance of primary mineral particles or are irduced due to post-depositiomal chamges. It is proposed %hat the first of these alterr~tives act~ally operates. The small primary mineral particles may be effectively examined by high voltage electron microscopy; This shows that very irregular particles exist in post-glacial clays anl that these have considerable internal stresses. In~err~l structures can be observed by ~ techniques and this allows particle nature to be effectively examined. Auth.
One dimensional l~roblem of the consolidation of water satu~rated clayey grourzl in which the viscosity of soil amd pore water are accounted. In Russian. MOSKOVSKII INST. INZHEN.Z ~ k~zN~. TRANSPORTA .TRUDY,
v397,1972,~8-79. 733
ACHENBACH,JD Wave propagation in elastic solids. Textbook. NORTH HOLLAND, A M ~ , 1973,439P. Intended as a reference source for engineers and scientists in the broad sense, and as a textbook for graduate courses, this book presents the basic phencmen~ and the pertinent mathematics of wave l~oPags~ion in elastic solids, within the framework of the classical theory on linear elasticity.
7~ ERUTOV,VI DYAEDNOV, VP Calculation of settlement of loessial soil from its own weight with consideration of the shape and ~mensions of the wetted zone. 5F, IT,TRt .
so~ ~CH.FOmOA~ON ~.~0,~,1973,P163-~69.
Granular materials and influence of interlocking
Physico-chemical properties
See also abstract: 792.
729 SHASTKEVICH, IU Temperature waves in a two layer medi~. In Russian. 5R. PROBLEMY GEOKRIGLOGII, N O V 0 S I B ~ , NAUKA, 1973,P37-49. Interpretation of tempera%nn-e measurements is complicated by the ~ifference in thermal properties of rock layers. For l~actical purposes, it can be assumed that these properties are constant when ar~ surface below the active layer is considered as the half-space surface. A two-layer problem concerning periodic variation of the half-space surface temperature~ is solved by the Laplace transform method. The results ~ n e d are sttitable for analysing temperature wave parameters.
726 NELSON,JD ASIAN INST .TECHNOL.BANGEDK, T l~luence of clay fabric on bonds er~ dilatation; Internatv Syrup; on Soil S t r ~ e ~ Gothenblxrg, 1973. ~F, 5R. S W ~ I ~ GEOI~CHNICAL SOCI~Y, STOCKHC~M,1973,PI53-160. ~srr~n~s concept of the mechanism of dilatation is dlacnssed and results are presented to illustrate the effect of soll structure on dilatationsl characteristics, ar~ hence~ %he development of dia~enetic bo~Is. It was seen T~at clays having a m~11 amottrf~of physical particle interaction (bentonite) exhibit a m 1 1 e r s ~ of stored sfarain e ~ r ~ y d~ring consolidation and a lesser temdency to dilate than do soils which have mere l~kValcal interaction ( B a ~ o k Clay ar~ kaolinite) ; The ter~emcy to dilate was directly related to the ability for diagenetic bonds to f ~ m in %he soil. Auth.
727 YONG, RN MOGILL UNIV. MONTREAL, CDN SH~,DE MCGILL UNIV.MONTREAL, CDN Fabric unit interaction and soil behavio~r. Internat. Syrup; on Soil S ~ t u r e , Gothenburg, 1973. 5F,6R. ~ISH GE~CAL SOCIETY, STOCEHOLM,1973, P176-183. There are two apl~oeches tO predicting the behaviour of soils based on fabric analyses. In the first case it is assumed that consideration of the interaction between individual particles will lead directly to l~ediction of b e h a v i ~ , while~ in the secomd case the soil is assumed to be ec~pcsed of groups of particles ccm~islng a "fabric unit". A knowledge of particle-particle interaction will lead to an understemd±ng of the integrity of the irdividual fabric unit but a consideration of fabric unit interaction is also necessary in prediction of soil behaviour. In concerning itself with the latter approach, ~/~is study has p r e s ~ i) a scheme for classification of fabric units~ 2) implications of the fabric unit interaction concept using consolidation as an example, ard 3) a statistical-mathematical basis which has been used in the formulation of analytical techniques leading to soil behavio~r prediction.
730 SAADA,AS OU, CD Strain-stress ar~ faille of clays. 7F, ST,18R. J. SOIL MECH .FOUND,DIV.V99, ~MI2,1973, PI091-1111. Different degrees of a~isotropy were imduced through one-d~m~nsional consolidation in three types of clay; For each degree of anisotropy, a pneumatic analog compt~ter was used to subject the clay to variou~ stress paths. The results are used to check the validity of strain-stress relations of an incremental matte ard to examine a failure criterion due %o Gol'denblat and Kopnov.
731 TROFIMENKOV, YG FUNDAMENT PROECT INST.MOSCOW,SU Practical method of determining the angle of internal friction and the cohesion of soils from the data from pressure-meter tests. 3F, IT,4R. SOIL M E C H . F O U I ~ O N ENG.V10,N3,1973,P200-202. Data from press~emeter tests permit obtainimg the relation between the l~essure on soil in the wall of a well and the deformation of the soil. Formulae are given representing the relations.
Compressibility,swelling and consolidation 732
728
KSENOFONPOVjA I
~,~ITI.'l;'~', I,..T UNIVo L~nS, GB CABRERA,JG UNIV. ~R~DS, GB HAMMOND, C UNIV.L~S, Particle nature in sensitive soils amd its relation to soll structure and geotechnlcal properties. Internat~ Syrup; on Soil Shructure~ Gothenburg, 1973, 16R. SWEDISH GEOTECHNICAL SOCIETY, STOCKHOLM, 1973, P184-I~. Very sensitive soils Owe their extraordinary properties to the predomlnsmce of short ramge bonds in soil system. There are two ways of accounting for the presence of short rar~e interperticle bonding forces: they are either intrinsic in the system due to a predominance of primary mineral particles or are irduced due to post-depositiomal chamges. It is proposed %hat the first of these alterr~tives act~ally operates. The small primary mineral particles may be effectively examined by high voltage electron microscopy; This shows that very irregular particles exist in post-glacial clays anl that these have considerable internal stresses. In~err~l structures can be observed by ~ techniques and this allows particle nature to be effectively examined. Auth.
One dimensional l~roblem of the consolidation of water satu~rated clayey grourzl in which the viscosity of soil amd pore water are accounted. In Russian. MOSKOVSKII INST. INZHEN.Z ~ k~zN~. TRANSPORTA .TRUDY,
v397,1972,~8-79. 733
ACHENBACH,JD Wave propagation in elastic solids. Textbook. NORTH HOLLAND, A M ~ , 1973,439P. Intended as a reference source for engineers and scientists in the broad sense, and as a textbook for graduate courses, this book presents the basic phencmen~ and the pertinent mathematics of wave l~oPags~ion in elastic solids, within the framework of the classical theory on linear elasticity.
7~ ERUTOV,VI DYAEDNOV, VP Calculation of settlement of loessial soil from its own weight with consideration of the shape and ~mensions of the wetted zone. 5F, IT,TRt .
so~ ~CH.FOmOA~ON ~.~0,~,1973,P163-~69.