- Email: [email protected]
Measurement of flow properties of expansive clays
53A
ount of disturbance. With this apparatus, the complete set of ten amisotropic elastic deformation parsmeters has been determined for a soft sensitive clay. 7930~i ASSOCIATED AND ~ O N - A S S O C ~ C O N S T I ~ I V E RELATIONS FOR UNDRAINED BEHAVIOUR OF ISOTROPIC SOFT CLAYS Bane~.~ee, P K; Stipho, A S Int J Nmn Anal Me%h Gecmme_h, V2, NI, Jan-
March z978, ~5-56 Incremental theory of plasticity has been used to derive associated and non-associated stressstrain relations for analysing the umdrs/ned stress-strain response of is~tropic nc~m~1 ly and lightly overeo~solidated clays. A comparison is made between theoretical results s~d those of triaxial tests on sm,11 samples. 793042 ON MOD~X/~ING THE ~ l q I U - R E L O A D I N G BEHAVIOUR OF SOILS. ~ O R T COMMUNICATION Zytynski, M; Randolph, M F; Nova, R Int J Nun Anal Meth Geomech, V2, NI, Jan-
March z978, ~87-9~ Discusses the inconsistencies of soil models based on the concepts of conventional plasticity and pseudo-elasticity. Introduces a new approach based on the association of non-recovsable deformation with all stress Paths. 793043 SHEAR BAND FORMATION IN SAND BCDIES AS A BI-
FURCATZON PROBIm~ (ZN ~ ) Vardoulakis, I Publ Inst Soil Rock Mech Umiv Friderielana, Karlsruhe, 1170, 1977, I~2P Gives a theoretical and experimental analysis of spontaneous shear band formation in the hiaxial %est on sarzl samples.
793046 SOME FACTORS AFFECTI~ SOIL FLEXIBILITY Duffy, D M Ph D thesis, Arizona Univ, 1977, 160P Influence of sity, method ard particle B artificial
moulding water content, dry denof compaction, cure conditions si~e distribution were examined in soils.
Avail: University Micrcf41ms Lid, 18 Bedford Rowj Lordon, WCIR 4EJ, UK 7 9 3 0 ~ D ~ ' n ~ ' ~ T I O N OF A U W S 0 ~ S AN0 ~ S
~ S
~ISATION
OF ~ N ~ N G FC~ B~ F I ~ ~.SM~Z
(n~ ~ N C H )
Monger, J Dr Ing thesis I Inst Appl sciencesj Lyon~ 1977
Time dependent behaviour See also: 793022 7930~8 MCDELS FOR D I L A T e , CREEP, AND FLOW IN ROCKS Bell, M L Ph D thesis, Stanford Univ, 1977, 249P The models describe t h e mechanisms of deformtion in terms of basic rock and fluid parameters in order that laboratory data can be used to provide constraints on their behaviour. The models deal with (i) non-Newtonian antiplane flow as applied to plate deformation, (2) the grain boundary-axial crack mechanism for micrc~ crack dilatancy, ard (3) reservoir induced seiamicity. Avail: University Microf~Ims, 18 Bedford ROw, London WCIR 4EJ, UK
793049 CLAY STRUCTURE AND CREEP ~RHAVIOUR OF CLAYS AS 1930~/~ FIELD M E A ~ S OF D ] ~ I O N CHARACTERIS.TICS OF SOFT ROCKS Mori, H; Takahashi, K; Noto, T Proc Interr~tiomal Symposit~n on Field Measurements in Rock Mechanics, Z~rich, ~-6 April 1977, V1, ~01-~I~. Pt~l Rotterdam: A A Balkema, 1977 Reports work carried out as part of the research programme fer the Akashi suspenalon bridge in Japan, to measure t h e d~fm~mation charaateristics of multiple layers of sardstone and mudstone by large scale plate bearing tests. Deformability was also measured by pressuremeter tests. 793045 STRESS-RELAXATION AND ~ EFFECTS ON SOIL DEFORMATION Lacerda, W A Ph D thesis, California Univ, Berkeley, 1976, 313P Stress relaxation data was obtained for soils rsmging from pure quartz sand to umdist~bed soft marine clay. I::~errelationships were established between parameters describing stress relaxation~ creep under sustained stress, s_nd stress and strain under constant rate of strain triaxial loading. Both undrained and drained tests were carried out and the parameters compared. Avail: University Mierof~Im, Lid, 18 Bedford ROw, Lonion, WCIR 4~, UK
A RATE PROCESS Erol, 0 Ph D thesis, Iowa S t a t e Univ, 1977, 121P Defines two strain ratios for an ideal clay a~d relates them to the creep behaviour of real clay. U r ~ n e d simple shear tests were conducted on 2 clays which showed that the fundamental soil parameters defined in rate process theory a r e structure dependent. Avail: University Microfilms Lid, 18 Bedford ROw, London, WCIR 4EJ, UK
Permeability and capillarity 793050 PETROGRAPHICAL FACTORS RELATING TO POROSITY AND PERMEABILITY IN THE FELL SANDSTONE Bell s F G Q J Ergng Geol, Vll, N2, 1978, PI13-126 Reports an analysis of core material from Shirlawhope Well, Northumberland, ~T~. Armlyses at 3m intervals included modal analysis, petrographiC analysis of grain packing, grain size amslysis, absolute and effective porosity, permeability of in%act specimens. 793051 M E A S U R ~ N T OF F I ~ PROPERTIES OF EXPANSIVE CLAYS Uzanj J; Lytton, R L In% J Ntm~ Anal Meth Geemech, V2, N1, JanMarch 1978, PTS-86
54A
Deals with t h e determination of the flow propempties of expansive and unsaturated clays under different corzLitions of stress. By choosing the moisture content as the dependent variable, the well known non-linear diffusion equation is derived. Numerical solutions using a finite element program are presented, and a procedure is proposed to derive the flow properties of the clay from the sorption curves. A relationship is shown between applied stress, moisture diffusivity arzl relative moisture content.
793052 P ~ I L I T T
AND RELATE?D PROPERTIES OF COAL REFUSE Chert, C Y; Bullen, A G R; Vitale, J E Transp Res Rec, N640, 1977, P~9-52
Compressibility, swelling and consolidation 793056 CONSTANP-RATE-OF-STRAIN AND CON~ROLLED-GRADIEET CONSOLIDATION TESTINO Gorm~Lu, C T; Hopkins, T C; Deen, R C Geotech Test J, Vl, NI, March 1978, P3-15 These two methods are compared with conventional incremental-loading consolidation tests in an extensive testing l~ogr~mmm on 3 soils. Their feasibility for routine testing procedures is discussed. 793057 INFLL~NCE OF THE STRUCTURE AND CONSTITUENTS OR
793053 ACTION OF SAND DRAINS IN SOPT SOILS Moser, M A Publ Inst Soil Mech Rock Mech Fridericiana Univ Karlsruhe, N69, 1977, 103P Reports permeability studies (including the relationahip between void ratio, hydraulic gradient and pore water flow) in a newly developed apparatus to test the validity of Darcy's law for a clay soil. The law is found to be only partially valid and the effect of this on consolidation in the region of a sand drain is considered. Deformation measurements were made in a larger apparatus which together with theoretical solutions indicate that samd drains have limited applicability in soft soils. 793054 FUNDAMENTAL STUDIES OF FLUID FLOW THROUGH A SINGLE FRACTURE lwai, K Ph D thesis, California Univ, Berkeley, 1976 , 232P Investigates the applicability of the cubic law to fluid flow through natural fractures, simulated by mating 2 halves of tension-cracked cylindrical rock samples. The independent effects of geometric factors such as large-scale roughness and contact area were also tested. Results showed that fracture permeability although a unique function of apertures is not a unique function of stress, but also relates to stress history. Flow is governed by the cubic law if the aperture exceeds 0.2 mm. Avail: Unlve~sity Microfilms Ltd, 18 Bedford Row, London, WCIR 4EJ, UK
793055 FUNDAMENTAL SOLUTIONS FOR FLUID-SATURATED POROUS MEDIA AND APPLICATION TO LOCALISED R ~ PHENOMENA Cleary, M P Ph D thesis, Brown Univ, 1976, 320P The solutions can be used in numerical procedures to solve a variety of consolidation, plasticity and faulting problems in soil and rock mechanics. The emphasis is on boundary integral equations, in real or transformed time. Avail: University Microfilms s 18 Bedford ROw, London WCIR ~EJ, UK
PEAT ON ITS BEHAVIOUR (IN FRESH) Vautrain, J Bull Liaison Lab Ponts Chaussees, ~ 6 , JulyAug 1978, P7-16 793058 NONLINEAR ANALYSIS OF A SOIL WITH ARBITRARY DILATANCY BY A FINITE ~ N T METHOD Kokushko, T Soils Found, VI8, NI, March 1978, P73-89 Proposes an analytical technique for materials with arbitrary dilatant behaviour, in which the volt,he change of a soll is considered as two components, consolidation and dilatancy, and these are computed independently. The analysis is applied to a strip footing and an embankment. 793059 CC~41mJTATIONALMETHOD FOR CONSOLIDatION C O ~ I C I EET. TECHNICAL NOTE Sivaram, B; Swamee, P K Soils Found, VI7, N2, June 1977 , P48-52 793060 CHARACTERISTICS OF PENETRATION RESISTANCE OF A RECLAIMED SANDY DEPOSIT AND THEIR CHANGE THROUGH VIBRATORY COMPACTION Salto, A Soils FOund, V17, ~ , Dec 1977 , P31-43 793061 EFFECT OF LOADING DURATION ON RESULTS OF ONEDIMENSIONAL CONSOLIDATION TESTS Murakami, Y Soils Found, VI7, ~ , Dec 1977, P59-69 793062 SOME ANALYTICAL RESULTS OF A Ir~ANE STRAIN CONSOLIDATION PROBLEM OF A CLAY LAYER WITH FINITE THICKNESS. TECHNICAL NOTE Y~chi, H; Murakami, Y Soils Found, VI8, NI, March 1978 , P98-I04
Dynamic properties 793063 D~I~RMINA~ION OF BIOT'S PARAMETERS FOR SANDSTONES PART 1 : STATIC TESTS Yew, C H; Jogi, P N Exp Mech, VI8, NS, May 1978 , P167-172 Blot's theory may be used to describe the wave motions in fluld-saturated porous rocks. The experimezf~al irocedure for determlnir~ Blot's parameters for four rock specimens is icesented
ount of disturbance. With this apparatus, the complete set of ten amisotropic elastic deformation parsmeters has been determined for a soft sensitive clay. 7930~i ASSOCIATED AND ~ O N - A S S O C ~ C O N S T I ~ I V E RELATIONS FOR UNDRAINED BEHAVIOUR OF ISOTROPIC SOFT CLAYS Bane~.~ee, P K; Stipho, A S Int J Nmn Anal Me%h Gecmme_h, V2, NI, Jan-
March z978, ~5-56 Incremental theory of plasticity has been used to derive associated and non-associated stressstrain relations for analysing the umdrs/ned stress-strain response of is~tropic nc~m~1 ly and lightly overeo~solidated clays. A comparison is made between theoretical results s~d those of triaxial tests on sm,11 samples. 793042 ON MOD~X/~ING THE ~ l q I U - R E L O A D I N G BEHAVIOUR OF SOILS. ~ O R T COMMUNICATION Zytynski, M; Randolph, M F; Nova, R Int J Nun Anal Meth Geomech, V2, NI, Jan-
March z978, ~87-9~ Discusses the inconsistencies of soil models based on the concepts of conventional plasticity and pseudo-elasticity. Introduces a new approach based on the association of non-recovsable deformation with all stress Paths. 793043 SHEAR BAND FORMATION IN SAND BCDIES AS A BI-
FURCATZON PROBIm~ (ZN ~ ) Vardoulakis, I Publ Inst Soil Rock Mech Umiv Friderielana, Karlsruhe, 1170, 1977, I~2P Gives a theoretical and experimental analysis of spontaneous shear band formation in the hiaxial %est on sarzl samples.
793046 SOME FACTORS AFFECTI~ SOIL FLEXIBILITY Duffy, D M Ph D thesis, Arizona Univ, 1977, 160P Influence of sity, method ard particle B artificial
moulding water content, dry denof compaction, cure conditions si~e distribution were examined in soils.
Avail: University Micrcf41ms Lid, 18 Bedford Rowj Lordon, WCIR 4EJ, UK 7 9 3 0 ~ D ~ ' n ~ ' ~ T I O N OF A U W S 0 ~ S AN0 ~ S
~ S
~ISATION
OF ~ N ~ N G FC~ B~ F I ~ ~.SM~Z
(n~ ~ N C H )
Monger, J Dr Ing thesis I Inst Appl sciencesj Lyon~ 1977
Time dependent behaviour See also: 793022 7930~8 MCDELS FOR D I L A T e , CREEP, AND FLOW IN ROCKS Bell, M L Ph D thesis, Stanford Univ, 1977, 249P The models describe t h e mechanisms of deformtion in terms of basic rock and fluid parameters in order that laboratory data can be used to provide constraints on their behaviour. The models deal with (i) non-Newtonian antiplane flow as applied to plate deformation, (2) the grain boundary-axial crack mechanism for micrc~ crack dilatancy, ard (3) reservoir induced seiamicity. Avail: University Microf~Ims, 18 Bedford ROw, London WCIR 4EJ, UK
793049 CLAY STRUCTURE AND CREEP ~RHAVIOUR OF CLAYS AS 1930~/~ FIELD M E A ~ S OF D ] ~ I O N CHARACTERIS.TICS OF SOFT ROCKS Mori, H; Takahashi, K; Noto, T Proc Interr~tiomal Symposit~n on Field Measurements in Rock Mechanics, Z~rich, ~-6 April 1977, V1, ~01-~I~. Pt~l Rotterdam: A A Balkema, 1977 Reports work carried out as part of the research programme fer the Akashi suspenalon bridge in Japan, to measure t h e d~fm~mation charaateristics of multiple layers of sardstone and mudstone by large scale plate bearing tests. Deformability was also measured by pressuremeter tests. 793045 STRESS-RELAXATION AND ~ EFFECTS ON SOIL DEFORMATION Lacerda, W A Ph D thesis, California Univ, Berkeley, 1976, 313P Stress relaxation data was obtained for soils rsmging from pure quartz sand to umdist~bed soft marine clay. I::~errelationships were established between parameters describing stress relaxation~ creep under sustained stress, s_nd stress and strain under constant rate of strain triaxial loading. Both undrained and drained tests were carried out and the parameters compared. Avail: University Mierof~Im, Lid, 18 Bedford ROw, Lonion, WCIR 4~, UK
A RATE PROCESS Erol, 0 Ph D thesis, Iowa S t a t e Univ, 1977, 121P Defines two strain ratios for an ideal clay a~d relates them to the creep behaviour of real clay. U r ~ n e d simple shear tests were conducted on 2 clays which showed that the fundamental soil parameters defined in rate process theory a r e structure dependent. Avail: University Microfilms Lid, 18 Bedford ROw, London, WCIR 4EJ, UK
Permeability and capillarity 793050 PETROGRAPHICAL FACTORS RELATING TO POROSITY AND PERMEABILITY IN THE FELL SANDSTONE Bell s F G Q J Ergng Geol, Vll, N2, 1978, PI13-126 Reports an analysis of core material from Shirlawhope Well, Northumberland, ~T~. Armlyses at 3m intervals included modal analysis, petrographiC analysis of grain packing, grain size amslysis, absolute and effective porosity, permeability of in%act specimens. 793051 M E A S U R ~ N T OF F I ~ PROPERTIES OF EXPANSIVE CLAYS Uzanj J; Lytton, R L In% J Ntm~ Anal Meth Geemech, V2, N1, JanMarch 1978, PTS-86
54A
Deals with t h e determination of the flow propempties of expansive and unsaturated clays under different corzLitions of stress. By choosing the moisture content as the dependent variable, the well known non-linear diffusion equation is derived. Numerical solutions using a finite element program are presented, and a procedure is proposed to derive the flow properties of the clay from the sorption curves. A relationship is shown between applied stress, moisture diffusivity arzl relative moisture content.
793052 P ~ I L I T T
AND RELATE?D PROPERTIES OF COAL REFUSE Chert, C Y; Bullen, A G R; Vitale, J E Transp Res Rec, N640, 1977, P~9-52
Compressibility, swelling and consolidation 793056 CONSTANP-RATE-OF-STRAIN AND CON~ROLLED-GRADIEET CONSOLIDATION TESTINO Gorm~Lu, C T; Hopkins, T C; Deen, R C Geotech Test J, Vl, NI, March 1978, P3-15 These two methods are compared with conventional incremental-loading consolidation tests in an extensive testing l~ogr~mmm on 3 soils. Their feasibility for routine testing procedures is discussed. 793057 INFLL~NCE OF THE STRUCTURE AND CONSTITUENTS OR
793053 ACTION OF SAND DRAINS IN SOPT SOILS Moser, M A Publ Inst Soil Mech Rock Mech Fridericiana Univ Karlsruhe, N69, 1977, 103P Reports permeability studies (including the relationahip between void ratio, hydraulic gradient and pore water flow) in a newly developed apparatus to test the validity of Darcy's law for a clay soil. The law is found to be only partially valid and the effect of this on consolidation in the region of a sand drain is considered. Deformation measurements were made in a larger apparatus which together with theoretical solutions indicate that samd drains have limited applicability in soft soils. 793054 FUNDAMENTAL STUDIES OF FLUID FLOW THROUGH A SINGLE FRACTURE lwai, K Ph D thesis, California Univ, Berkeley, 1976 , 232P Investigates the applicability of the cubic law to fluid flow through natural fractures, simulated by mating 2 halves of tension-cracked cylindrical rock samples. The independent effects of geometric factors such as large-scale roughness and contact area were also tested. Results showed that fracture permeability although a unique function of apertures is not a unique function of stress, but also relates to stress history. Flow is governed by the cubic law if the aperture exceeds 0.2 mm. Avail: Unlve~sity Microfilms Ltd, 18 Bedford Row, London, WCIR 4EJ, UK
793055 FUNDAMENTAL SOLUTIONS FOR FLUID-SATURATED POROUS MEDIA AND APPLICATION TO LOCALISED R ~ PHENOMENA Cleary, M P Ph D thesis, Brown Univ, 1976, 320P The solutions can be used in numerical procedures to solve a variety of consolidation, plasticity and faulting problems in soil and rock mechanics. The emphasis is on boundary integral equations, in real or transformed time. Avail: University Microfilms s 18 Bedford ROw, London WCIR ~EJ, UK
PEAT ON ITS BEHAVIOUR (IN FRESH) Vautrain, J Bull Liaison Lab Ponts Chaussees, ~ 6 , JulyAug 1978, P7-16 793058 NONLINEAR ANALYSIS OF A SOIL WITH ARBITRARY DILATANCY BY A FINITE ~ N T METHOD Kokushko, T Soils Found, VI8, NI, March 1978, P73-89 Proposes an analytical technique for materials with arbitrary dilatant behaviour, in which the volt,he change of a soll is considered as two components, consolidation and dilatancy, and these are computed independently. The analysis is applied to a strip footing and an embankment. 793059 CC~41mJTATIONALMETHOD FOR CONSOLIDatION C O ~ I C I EET. TECHNICAL NOTE Sivaram, B; Swamee, P K Soils Found, VI7, N2, June 1977 , P48-52 793060 CHARACTERISTICS OF PENETRATION RESISTANCE OF A RECLAIMED SANDY DEPOSIT AND THEIR CHANGE THROUGH VIBRATORY COMPACTION Salto, A Soils FOund, V17, ~ , Dec 1977 , P31-43 793061 EFFECT OF LOADING DURATION ON RESULTS OF ONEDIMENSIONAL CONSOLIDATION TESTS Murakami, Y Soils Found, VI7, ~ , Dec 1977, P59-69 793062 SOME ANALYTICAL RESULTS OF A Ir~ANE STRAIN CONSOLIDATION PROBLEM OF A CLAY LAYER WITH FINITE THICKNESS. TECHNICAL NOTE Y~chi, H; Murakami, Y Soils Found, VI8, NI, March 1978 , P98-I04
Dynamic properties 793063 D~I~RMINA~ION OF BIOT'S PARAMETERS FOR SANDSTONES PART 1 : STATIC TESTS Yew, C H; Jogi, P N Exp Mech, VI8, NS, May 1978 , P167-172 Blot's theory may be used to describe the wave motions in fluld-saturated porous rocks. The experimezf~al irocedure for determlnir~ Blot's parameters for four rock specimens is icesented