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Permafrost and soil
77A
Session one. 7F,IT,15R. PROC.EIGHTH INT.CONF.ON SOIL MECH.FOUND.ENGNG,MOSCOW, 1974,V1.2,197&,PS67-376 • Remoulded Bearpaw shale, consolidated under Ko conditions, was allowed to swell under similar conditions in an oedometer apparatus in which lateral stresses, volumetric strains and porewater pressures were measured. Direct shear tests on the same material were conducted. The progressive nature of the failures, particularly pore pressure-time-swelllng relationships, are discussed. 721 SKETCH~,CJ SEPTIMUS WILLIS AND PTRS,BIRMINGHAM, GB BRANSBY, PL UNIV. CAMBRIDGE, GB The behaviour of an overconsolidated clay in plane strain. Conference. Session one. 15F,3OR. PROC .EIGHTH INT.CONF.ON SOIL MECH.FOUND.k~NGNG,MOSCOW,1974,V1.2,1974,P377-384. Data from tests on both one and two dimenslonally consolidated sables of remoulded kaolin in the biaxial plane strain device are ccasidered. One and two dimensional swelling, the variation of the principal effective stress in the zero strain direction, and the stressstrain behaviour ere studied.
Using a technique whereby double exposure holograms, containing fringes representing contours of equal displacement sm~litude, are obtained, criteria for cylin. drical hole barriers for screening elastic waves are developed. Auth.
Classification and identification 725 MORG~ST~qN, NR EIGENBROD, KD Classification of argillaceous soils and rocks. 13F, 1T, 21R. J.GEO~ECH. ~ G N G DIV.ASCE,VI00, N.GT10, OCT .1974, Pl137-i156. A classification scheme, supported by experimental da~a, is proposed which distinguishes between clays and m~dstones en the basis of the loss of undrained strength of cylindrical specimens immersed freely in water, and further, between hard clays and stiff clays on the basis of the rate of strength reduction. Index tests, and experimental data to support them, which are based on the amount and rate of slaking are a/so presented.
722 726 RETHATIL DES .BUR.SURV. SOIL INVEST .BUDAPEST, H SONPAL,RC L.D.COLL. ~NGNG,AHMEDABAD, IND EATTI,RK IND. INST .TECHNOL .BOMBAY, IND Soil co~ditlon as characterlsed by the unconfined compressive strength. Conference. Session one. 2F,1R. Consolidation - An analysis with pore pressure PROC.EIGHTH INT.CONF.ON SOIL MECH.FOUND.ENGNG,MOSmeasurements. Conference. Session one. 7F,1T,13R. PROC.EIGHTH INT.CONF .ON SOIL MECH.FOUND.~GNG,MOSCOW, 1975,VI.Z,197&, P343-344. ~% method is proposed to characterlse the soll condition COW, 1974,VI.2,1974,P385-388. An investigation into the role of adsorbed water in gover- by using both the unconfined compressive strength and ning the mechanism of the process of consolidation of var- the plasticity index, and some limits complying with ious electro-vlscous soll systems with pore-pressure practical experience are fixed. measurements at the bottom face and at different depths of consolidating systems, is described. A newly deve727 MAKSIMOV, MM loped physical model is used to explain the variations Engineering geological subdivision of terrain according on the basis of soil-water system. The model is them to mudflow conditions - Caucasus. In Russian. 6R. transformed into a theological model and a mathematical VSESOI. NAUCH. ISSL~D. INST .GIDROGEOL. INZH~. GEOL. theory is developed to help account for the observed pore water pressure, and its perfornmmce in time-curves TRUDY. TA 705. P68,V35,1971, P58- 66. gives good agreement when compared to other consolidation theories. 728 BARTON, N LI~,R Vibration LUNDE, J Ehgineering classification of rock masses for the design of tunnel support. 8F,14T,24R. ROCK MEL~NICS, V6,N4, DEC .1974, P189- 236. 723 TAYLOR, PW UNIV. AUCKLAND, NZ This paper is a slightly edited versio~ of an Internal PARTON, IM MINISTRY OF WORKS,NZ Report of the Norweigan Geotechnlcal Institute, pubDynamic torsion testing of soils .Conference.Session llshed in June 1974. A method of classifying rock masses and predicting support is proposed which is based one.7F,1T,17R. PROC.EIGHTH.INT.CONF.ON SOIL MECH.FOUND.~NGNG,MOSCOW, on the evaluation of the rock mass tunnelling quality (Q). Q is is derived from the following parameters: degree 1974,V1.2,1974, P425-h32. The use of dynamic soll properties, particularly shear of Jointlng of the rock; number of Joint sets; degree modulus and equivalent viscous damping factor, for estiof planarity of the Joints; alteration or filling along mating site response to earthquake motion is described. the Joints; and parameters accounting for rock load Methods of determining dynamic properties and the feaand water inflow. ~he method was derived by evaluating tures of torsion tests are discussed. An improved apparaQ for about 200 tunnel case records. In each case the tus, in which free torsional oscillation of a sample with type of support predicted is compared to the type used. added inertia is observed, is described, and test results for a variety of soils are presented and compared with previously published results. It is shown that dynamic properties ~ differ greatl~ from published average results, and that da~ing in clays at low amplitudes may be less than previously estimated.
Geology
724 WOODS,RD UNIV.MICHIGAN,ANNARBOR,USA SAGESSER,R ETH, BASI/~,HOFMANN, ZURICH, CH Holographic interferometry in soll dynamics. Conference. Sessica one. 6F,6R. PROC.EIGHTH.INT.CONF.ON SOIL MECH.FOUND.ENGNG, MOSCOW,197~,VI.2,1974,P~81-486. The successful use of holographic interferometry to study vibratory displacement of a sand surface is described.
Frost action,permafrost and frozen ground See also abstracts: 702, 703, 774, 792. 729 CHIGIR,VG Permafrost and soil.In Soll Cryogenesis.InRusslan. MOSCOW, NAUKA,1974,P7-17.
Session one. 7F,IT,15R. PROC.EIGHTH INT.CONF.ON SOIL MECH.FOUND.ENGNG,MOSCOW, 1974,V1.2,197&,PS67-376 • Remoulded Bearpaw shale, consolidated under Ko conditions, was allowed to swell under similar conditions in an oedometer apparatus in which lateral stresses, volumetric strains and porewater pressures were measured. Direct shear tests on the same material were conducted. The progressive nature of the failures, particularly pore pressure-time-swelllng relationships, are discussed. 721 SKETCH~,CJ SEPTIMUS WILLIS AND PTRS,BIRMINGHAM, GB BRANSBY, PL UNIV. CAMBRIDGE, GB The behaviour of an overconsolidated clay in plane strain. Conference. Session one. 15F,3OR. PROC .EIGHTH INT.CONF.ON SOIL MECH.FOUND.k~NGNG,MOSCOW,1974,V1.2,1974,P377-384. Data from tests on both one and two dimenslonally consolidated sables of remoulded kaolin in the biaxial plane strain device are ccasidered. One and two dimensional swelling, the variation of the principal effective stress in the zero strain direction, and the stressstrain behaviour ere studied.
Using a technique whereby double exposure holograms, containing fringes representing contours of equal displacement sm~litude, are obtained, criteria for cylin. drical hole barriers for screening elastic waves are developed. Auth.
Classification and identification 725 MORG~ST~qN, NR EIGENBROD, KD Classification of argillaceous soils and rocks. 13F, 1T, 21R. J.GEO~ECH. ~ G N G DIV.ASCE,VI00, N.GT10, OCT .1974, Pl137-i156. A classification scheme, supported by experimental da~a, is proposed which distinguishes between clays and m~dstones en the basis of the loss of undrained strength of cylindrical specimens immersed freely in water, and further, between hard clays and stiff clays on the basis of the rate of strength reduction. Index tests, and experimental data to support them, which are based on the amount and rate of slaking are a/so presented.
722 726 RETHATIL DES .BUR.SURV. SOIL INVEST .BUDAPEST, H SONPAL,RC L.D.COLL. ~NGNG,AHMEDABAD, IND EATTI,RK IND. INST .TECHNOL .BOMBAY, IND Soil co~ditlon as characterlsed by the unconfined compressive strength. Conference. Session one. 2F,1R. Consolidation - An analysis with pore pressure PROC.EIGHTH INT.CONF.ON SOIL MECH.FOUND.ENGNG,MOSmeasurements. Conference. Session one. 7F,1T,13R. PROC.EIGHTH INT.CONF .ON SOIL MECH.FOUND.~GNG,MOSCOW, 1975,VI.Z,197&, P343-344. ~% method is proposed to characterlse the soll condition COW, 1974,VI.2,1974,P385-388. An investigation into the role of adsorbed water in gover- by using both the unconfined compressive strength and ning the mechanism of the process of consolidation of var- the plasticity index, and some limits complying with ious electro-vlscous soll systems with pore-pressure practical experience are fixed. measurements at the bottom face and at different depths of consolidating systems, is described. A newly deve727 MAKSIMOV, MM loped physical model is used to explain the variations Engineering geological subdivision of terrain according on the basis of soil-water system. The model is them to mudflow conditions - Caucasus. In Russian. 6R. transformed into a theological model and a mathematical VSESOI. NAUCH. ISSL~D. INST .GIDROGEOL. INZH~. GEOL. theory is developed to help account for the observed pore water pressure, and its perfornmmce in time-curves TRUDY. TA 705. P68,V35,1971, P58- 66. gives good agreement when compared to other consolidation theories. 728 BARTON, N LI~,R Vibration LUNDE, J Ehgineering classification of rock masses for the design of tunnel support. 8F,14T,24R. ROCK MEL~NICS, V6,N4, DEC .1974, P189- 236. 723 TAYLOR, PW UNIV. AUCKLAND, NZ This paper is a slightly edited versio~ of an Internal PARTON, IM MINISTRY OF WORKS,NZ Report of the Norweigan Geotechnlcal Institute, pubDynamic torsion testing of soils .Conference.Session llshed in June 1974. A method of classifying rock masses and predicting support is proposed which is based one.7F,1T,17R. PROC.EIGHTH.INT.CONF.ON SOIL MECH.FOUND.~NGNG,MOSCOW, on the evaluation of the rock mass tunnelling quality (Q). Q is is derived from the following parameters: degree 1974,V1.2,1974, P425-h32. The use of dynamic soll properties, particularly shear of Jointlng of the rock; number of Joint sets; degree modulus and equivalent viscous damping factor, for estiof planarity of the Joints; alteration or filling along mating site response to earthquake motion is described. the Joints; and parameters accounting for rock load Methods of determining dynamic properties and the feaand water inflow. ~he method was derived by evaluating tures of torsion tests are discussed. An improved apparaQ for about 200 tunnel case records. In each case the tus, in which free torsional oscillation of a sample with type of support predicted is compared to the type used. added inertia is observed, is described, and test results for a variety of soils are presented and compared with previously published results. It is shown that dynamic properties ~ differ greatl~ from published average results, and that da~ing in clays at low amplitudes may be less than previously estimated.
Geology
724 WOODS,RD UNIV.MICHIGAN,ANNARBOR,USA SAGESSER,R ETH, BASI/~,HOFMANN, ZURICH, CH Holographic interferometry in soll dynamics. Conference. Sessica one. 6F,6R. PROC.EIGHTH.INT.CONF.ON SOIL MECH.FOUND.ENGNG, MOSCOW,197~,VI.2,1974,P~81-486. The successful use of holographic interferometry to study vibratory displacement of a sand surface is described.
Frost action,permafrost and frozen ground See also abstracts: 702, 703, 774, 792. 729 CHIGIR,VG Permafrost and soil.In Soll Cryogenesis.InRusslan. MOSCOW, NAUKA,1974,P7-17.