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Influence of shear velocity on vane shear strength
36A
773010 ~ N ~ R I C A L A~D ELASTIC PROPERTIES OF CRYOGENIC
(IN ~ussi;a)
Frolov, A D Moscow: Nedra, 1976, 2 ~ P
773011 INVE~IGREION AND STR~IS~ICAL ANALYSIS OF THE GEOTECHNICAL P R O P ~ I E S OF COAL MIRE REFU~ Chen, C Y Ph D thesis, Pittsburgh Univ, 1976, 210P
Data collected from domestic and fcrei~ sources ware analysed t o i n v e s t ~ a t e degrada-
tion, s t r e ~
characteristics, combustion potential amd ~e~mea~ili%y of coal waste; Analysis of variance, t distribution and multiple cce~arisons were used to examine the diffaremce in l ~ a t i o n means for various material ~ o p e r ~ e s . Regression ar~ correlation analyses were used to describe and establish the relatlonships amongst T~he various material
p r o p e r t i e s , ~o~h simple surl multiple re~ression beir~ used. Avail: University Micr~f~Im-, 18 Bedford Row, Lomdon WCIR ~E~, UK
Texture, structure, composition
mechanical characteristics of the discontinuities gave friction angles of 35-49 Degrees. Fabric data incorporated in an empirical design model reveal a medium to high strength rock mass. RQD and other systems are invoked to provide guidelines for support. A finite element analysis indicates that failure of intact rock is unlikely. Avail: CSIRO, 372 Albert St, East Melbourne. Vic, 3002, Australia
773015 QUANTIFIC~ION OF ROCK STRUCTURE AND FABRIC Barton, C M CSIRO Division of Applied Gecmechanics lecture series 34, 1975 Considers the fit of data distributions to common statistical molels ar~ outlines alternative classification syates~ for feature spacing, length, relative continuity, roughness and miscellaneous defect character. Parameters ere related to engineering design. Avail: CSIRO Division of Applied Geomechanics, PO Bc~ 54, Mt Waverley, 31~9, Vic, Australia
Fracture processes
and density 773016 INVESTIGRrION OF COMBINED BREAKING-UP OF 773012 F L O ~ HEAVE IN DEVELOPME~ WORKINGS Shishkin, V P; Gs~tsuk, V L; Filatova, E V SOy Min Smi, VII, N~, Sept-Oct 1975, P555-
FROZEN SOILS (TN RUSSZA~) ~s=C,~, Y M; ~ e ~ ,
R s; ~z'ykov, s I Izv VUZ Gorn Zh, N2, 1976, ~4-68
558 The crystal structure of argillite samples was inveatigated by x-ray diffraction, revealing the presence of OH ~rou~s confirming the h ~ a ted state Of dis~er~.-~ perticles in the argillife owing to possible ion exchamge amd structural changes. 773013 RECENT DEVELOPME~S IN THE INEERPRETR~ION OF DATA FROM JOI~T ~JRVEYS IN ROCK MASSES Steffen, 0 K H; Kerrick, J E; Jennings, J E Paper to 6th R~iomal Co~faronce fur Africa: Soil Mechanics a ~ F ~ i o n Er~ineering, D~rba~ Sept 1975. Proceedir6s, V2, P17-26 Discusses evaluation of stability of rock slopes in large opencast m~r~s a~i describes some atati~ieal teahnlques used for %he data interlm~etation, i~-It~llmg definition of the bou~larles to Joint sets a ~ estimation of lemgths of Joints a~d their spacing. The influence of im~trm~ntation a ~ observer errors ware evaluated in a lab and field experiment. Co~cl~les that considerably greater confidence can be placed on estimation of Joint le~ths a~i spacings when using statistical theory but that definition of Joint set boundaries are best o b t a i n e d from a careful and subjective assessment of the data.
Based on an experimental investigation of the process of combined breaking-up of soils by the action of UHF electrcmagnetic energy and mechanical forces, numerical data are obtained on the relative reduction of traction loads and the value of energy cons~mptlon for the extraction of frozen soils. It is shown that the UHF electromagnetic field effect permits mechanical load on wcrkimg perts of %he soil-breaking machinery to be reduced very considerably.
Strength characteristics 773017 INFLUENCE OF SHEAR VELOCITY ON VANE SHEAR STRKNQTH P~low, M; Richards, A F J Geotech Engng Div, ASCE, V103, ~TI, 1977, P19-32 Comparisons of field and laboratory vane sheer strength measurements m ~ e in two offshere test areas showed that field vane strengths ware conalstently higher, field strem6ths obtained with large diameter vanes were consistently higher than those o~tained with smaller vanes and that the amgular shear velocity at vane blade edges can significantly influence
vane shear stremgth measure~nts. An angular 773014 GEOTECHNICAL ANALYSIS OF ROOK STRUCTURE AND FABRIC IN THE CSA MINE I CORAR, NEW SOUTH WALES Be~ton~ C M CSIRO Division of Applied Gecmechanles technical paper 2~, 1977, 30P This is pert of an integrated geomecha~cs stud~ of factors of safety in h ~ u l i c a l l y filled high rise stopes. Some 24000 feature traces were analysed to give details of Joint amd fault occurrence. Surface wave data ware recorded on a variety of defect surfaces. Joint r o u ~ s s imdlces correlated with the
shear velocity of 0 . 1 5 ~ s is proposed as a s t a r e d for both labcratary and field.
773018 ~ N I ~ G
THE LDNG-TEEM ~ m A R SFREN~TH OF CONf~LTS BETWEEN ROCKS Afamasev, B G; Abramov, B K SOY Min Sci, VII, NS, Sept-Oct 1975 , P588-
591 The basic shear strength of weak surfaces such as disjunctive faults, extensive tectonic cracks, stratification or Jointimg was determined, together with t h e influence of creep on
773010 ~ N ~ R I C A L A~D ELASTIC PROPERTIES OF CRYOGENIC
(IN ~ussi;a)
Frolov, A D Moscow: Nedra, 1976, 2 ~ P
773011 INVE~IGREION AND STR~IS~ICAL ANALYSIS OF THE GEOTECHNICAL P R O P ~ I E S OF COAL MIRE REFU~ Chen, C Y Ph D thesis, Pittsburgh Univ, 1976, 210P
Data collected from domestic and fcrei~ sources ware analysed t o i n v e s t ~ a t e degrada-
tion, s t r e ~
characteristics, combustion potential amd ~e~mea~ili%y of coal waste; Analysis of variance, t distribution and multiple cce~arisons were used to examine the diffaremce in l ~ a t i o n means for various material ~ o p e r ~ e s . Regression ar~ correlation analyses were used to describe and establish the relatlonships amongst T~he various material
p r o p e r t i e s , ~o~h simple surl multiple re~ression beir~ used. Avail: University Micr~f~Im-, 18 Bedford Row, Lomdon WCIR ~E~, UK
Texture, structure, composition
mechanical characteristics of the discontinuities gave friction angles of 35-49 Degrees. Fabric data incorporated in an empirical design model reveal a medium to high strength rock mass. RQD and other systems are invoked to provide guidelines for support. A finite element analysis indicates that failure of intact rock is unlikely. Avail: CSIRO, 372 Albert St, East Melbourne. Vic, 3002, Australia
773015 QUANTIFIC~ION OF ROCK STRUCTURE AND FABRIC Barton, C M CSIRO Division of Applied Gecmechanics lecture series 34, 1975 Considers the fit of data distributions to common statistical molels ar~ outlines alternative classification syates~ for feature spacing, length, relative continuity, roughness and miscellaneous defect character. Parameters ere related to engineering design. Avail: CSIRO Division of Applied Geomechanics, PO Bc~ 54, Mt Waverley, 31~9, Vic, Australia
Fracture processes
and density 773016 INVESTIGRrION OF COMBINED BREAKING-UP OF 773012 F L O ~ HEAVE IN DEVELOPME~ WORKINGS Shishkin, V P; Gs~tsuk, V L; Filatova, E V SOy Min Smi, VII, N~, Sept-Oct 1975, P555-
FROZEN SOILS (TN RUSSZA~) ~s=C,~, Y M; ~ e ~ ,
R s; ~z'ykov, s I Izv VUZ Gorn Zh, N2, 1976, ~4-68
558 The crystal structure of argillite samples was inveatigated by x-ray diffraction, revealing the presence of OH ~rou~s confirming the h ~ a ted state Of dis~er~.-~ perticles in the argillife owing to possible ion exchamge amd structural changes. 773013 RECENT DEVELOPME~S IN THE INEERPRETR~ION OF DATA FROM JOI~T ~JRVEYS IN ROCK MASSES Steffen, 0 K H; Kerrick, J E; Jennings, J E Paper to 6th R~iomal Co~faronce fur Africa: Soil Mechanics a ~ F ~ i o n Er~ineering, D~rba~ Sept 1975. Proceedir6s, V2, P17-26 Discusses evaluation of stability of rock slopes in large opencast m~r~s a~i describes some atati~ieal teahnlques used for %he data interlm~etation, i~-It~llmg definition of the bou~larles to Joint sets a ~ estimation of lemgths of Joints a~d their spacing. The influence of im~trm~ntation a ~ observer errors ware evaluated in a lab and field experiment. Co~cl~les that considerably greater confidence can be placed on estimation of Joint le~ths a~i spacings when using statistical theory but that definition of Joint set boundaries are best o b t a i n e d from a careful and subjective assessment of the data.
Based on an experimental investigation of the process of combined breaking-up of soils by the action of UHF electrcmagnetic energy and mechanical forces, numerical data are obtained on the relative reduction of traction loads and the value of energy cons~mptlon for the extraction of frozen soils. It is shown that the UHF electromagnetic field effect permits mechanical load on wcrkimg perts of %he soil-breaking machinery to be reduced very considerably.
Strength characteristics 773017 INFLUENCE OF SHEAR VELOCITY ON VANE SHEAR STRKNQTH P~low, M; Richards, A F J Geotech Engng Div, ASCE, V103, ~TI, 1977, P19-32 Comparisons of field and laboratory vane sheer strength measurements m ~ e in two offshere test areas showed that field vane strengths ware conalstently higher, field strem6ths obtained with large diameter vanes were consistently higher than those o~tained with smaller vanes and that the amgular shear velocity at vane blade edges can significantly influence
vane shear stremgth measure~nts. An angular 773014 GEOTECHNICAL ANALYSIS OF ROOK STRUCTURE AND FABRIC IN THE CSA MINE I CORAR, NEW SOUTH WALES Be~ton~ C M CSIRO Division of Applied Gecmechanles technical paper 2~, 1977, 30P This is pert of an integrated geomecha~cs stud~ of factors of safety in h ~ u l i c a l l y filled high rise stopes. Some 24000 feature traces were analysed to give details of Joint amd fault occurrence. Surface wave data ware recorded on a variety of defect surfaces. Joint r o u ~ s s imdlces correlated with the
shear velocity of 0 . 1 5 ~ s is proposed as a s t a r e d for both labcratary and field.
773018 ~ N I ~ G
THE LDNG-TEEM ~ m A R SFREN~TH OF CONf~LTS BETWEEN ROCKS Afamasev, B G; Abramov, B K SOY Min Sci, VII, NS, Sept-Oct 1975 , P588-
591 The basic shear strength of weak surfaces such as disjunctive faults, extensive tectonic cracks, stratification or Jointimg was determined, together with t h e influence of creep on