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Composition and compressibility of typical samples of Mexico City clay
152A
1518 in rocks Fraetute proc BOCK,H RUHR.UNIV.B&CHUM,D A contxlbution to statistical joiatmeasurements. In Germm7F,2T,29R. 1524 L.MULLER65 ANNIV.PUBLICATION.UNIV.KARISRUHE.GERMANY.BROWN,EI JAMES COOK UNIV.TCWNSVILLE,AUS 1974,?99-111. Fractureof rock underunlPormbisxialcompression. InvesWg~tions, based on L&fullerspaper (1933)on appll- Conference. 5F,lT,2lR. cationof statistical joint iaeaaurements to eugineerinn PROC.'IIIIRD CONGRESS,INT.SOC.ROCK MECH.,DENVER,1974, gaology,~ereparted.-Usiagthecaseoftwo JOint V2,PARTA,1974,Plll-117. the mean of the anglebetweemthe sets and the degreeof I'h&.paperpresentsa techniquefor overcomingthe dlvarianceof both setswere veried.Theinfluenceof these ffZcultyof apply%ngunzLforlnloaddQ3tribnt%onsfreeof p-8 op the'%!en" jotit directionis shown.Mffethe Influenceof endrestraintwhen stud@ng rockbeharentaj$hodsof evaluating the meatlare used auddiscusvlour underbiaxial. compression. The methodtirolvesthe sedwithrespectto their appl.icabllity in rockmechanics. use of brush platensdevelopedbyHlladorffor testing Altth. concrete.Rewlts obtainedfor Wo&eyan marbleare presentedandsnalyzed. .
sets,
1519
UNIV.GLASGOW,SCOTL4ND,GB E@naential stress-&m& curves.lF,2R. CIV.naCaG,AvC.l975,P.39.
-3
1520 HUMPHREYs,JD Some en~iricslrelationships betweendrainedfriction angles,mechanical snelysesand Atterberg&uite of' naturalsoils at KaiajiDem, Nigeria.Technicalnote. 4F,2T. 1521 BINNIEAND PTNRS.,ICNDON,GB AJAE,A CAMBRIDGEUNIV..GB PARRY.RHG Stress-stra&nbehavlour of two c&tedclsys In tensionana compressPon. 24F,3T,24R. GEZECHN,V25~N3,SEFT.19?5,~95-512. Zonesof totaletresstensionoccurin soil structures suchas~~~~pgv~ts~~dame.Thispa'per aesc$bes theobservedbehavlourofccmpa&edGaultsnd BalderheadCb&?3 in directte&&m WI bending.Elastic bending theory isunsatisf'actoryfor analysingbend&~in soilsand Is replacedby a differential methodnot requiringthe ass&@onof sny preferred stress-strain law. Msxinmmtensllestrainsat failureIncreasewith mouldingwater content.Inltisltsngentana secsntmoduli forboth clays aremsrkedlygreaterintensionthenco~ pression,the relativevaluesbeing influenced by msulding water content.
Texture,structure,composition and density 1522 UNIV.NEWSCUTHWALES,BROKEN HIIL,AUS VUrUKURI,VS An airpumsi.meterforthe porosity of rocke.Mscussfonof p&perby Y.V.RamenaepldB.Venkatan~a, Int.J.Rock Mech.Min.Sci.V.8.1971. INT;J:R%K~.MIN.SCI~GK&E&.ABSlR.V12,N8,AUG.1~5, ~261.
1525 KRExx,WW TWIN CITIESMIN.RES.CENT.MINN.USA The energybalencetheoryandrookfractureenergy measurements for unlexialteQsion.Co&erence.l4F,1T, &.TBH?D CONGRESSINT SCC.ROCKMECH.DEHVER1974, VOL ~,PARTA,1974,&67&3. Anew applicationofthebasic Gr~fiththeoryof rupture ofbrlttle sol$ds,basedon directrmeseur& csffrsu?tme energy requ*~,iSpcaW. The lw!&be hYPOthd?3 fS deltatlawb‘atedbYtie& eXper%%&@ aadnOa-
recoveral51e energyusedinfrf~~&U~%ng is+%& &measured Tenrodr.esweretastedfn1~~a2.teneiQl~ closed-loop control. 1526 SCHNEIDER,HJ UNIV.KARLSRUHE,D Fractureprocessescm shear surfaces by rock frictton. In Germsn.23F,25R. L.MUILER65 ANNIV.PUBLICATIGN,UNlV.KARISRUHE,GFRMANY, 1974,P25-31. Microscopic investigations carriedout onthree different rock typeshave indicetedth&&crofra@ture processes occurringatthe surfacesaforrgwhich shearmt is taking place, are inPluencedbyte%ture, mitnee%lCo&ent, grain size snd roughnessOf the Sliding Smface. 1527 GUDEHUS,G Some cormoncharacteristics of fractureprocessesti overconsolidated soilsan8sed*mentsryrocks.In Germen.2F.15R. L.m 65 ANNIV.PUBLICATIDIY,E83N.~~~,G~, l974.P57-65. si&ii& sna stebilityof heavyovercoasolclsy, capillary- cohesivesoil snd chemical& Consolidated granularsoil are consxdered.
Strength characteristics
See also sbstracts: 1576,1585,1604,1682. 1523 1528 UNIV.ILLlNOIS,URBANA,IIL.,USA MESRI,G RENUMENKO,AF lNST.MIN.SIHER.NOVOSIBIRSK,SU TEHRANPCLYTx%RK,IR RCKHSAR,A Limitingequilibrium of a loosemediumwith a ILLINOISGEZ%HURV.,URBANA,USA BOHOR,BF broken structure. 3F,5R. Composlt%on and compressibility of typicalsamples SOV.MIN.SIC.,VlC,N2,1974,P121-126. of MexicoCity clejr. 28F,2T,41R. G~,V25,N3,SEPT.l975,P527-554. 1529 The conlpoa%tltion snd cos@esslhllityof samplesof Mexico POLITECN.TORINO,I BARLA,G Cltyclay&hnaturralwatercontents intherange421POLITECN.TCRING,I GCFFI,L 574$were deteradned. The ccurlpoebticn ss aeterm%nedby Directtensiletestingof enisotropic rocks.Conferscsnningelectronndcrosco~, X-rsydJffraction ti ence.9F,6R. chemicalanslyseawas found to be 5-1G$sand sl%es,55PROC.THlRDCONGRESS INT.soC.RCCKMECH.,DEHVW,1974, 6546silt-e&ad siliceouemicrofossils, 2G-3oq6 c&vV2,PARTA,1974$93-98. sizedpsrtielesand 5-l* org+c matter.Priraery aind The different problwtewhichwere met in settingup a [email protected] as detersnned inone-dQasnsianalcorieolldationtestswerefam8Cobeln'terre%ated.unit to be used for directtensiletestingof cy$%driare described. TAuaer&?al resri&s, Duringsustainedloading,secondarycompression sndthixo- cal rock speck fromthefinite elementathod,for choosing'tbe!xw& tropichardeningtakepleces~taneously. After susadequatecusp for cements the rOok specimsn,sre pretalnedsecondsrycompresslonthereis adecrease In serited. A seriesof testson anisotropic rocks,with a primaryas well as secondarycompressibility.
1518 in rocks Fraetute proc BOCK,H RUHR.UNIV.B&CHUM,D A contxlbution to statistical joiatmeasurements. In Germm7F,2T,29R. 1524 L.MULLER65 ANNIV.PUBLICATION.UNIV.KARISRUHE.GERMANY.BROWN,EI JAMES COOK UNIV.TCWNSVILLE,AUS 1974,?99-111. Fractureof rock underunlPormbisxialcompression. InvesWg~tions, based on L&fullerspaper (1933)on appll- Conference. 5F,lT,2lR. cationof statistical joint iaeaaurements to eugineerinn PROC.'IIIIRD CONGRESS,INT.SOC.ROCK MECH.,DENVER,1974, gaology,~ereparted.-Usiagthecaseoftwo JOint V2,PARTA,1974,Plll-117. the mean of the anglebetweemthe sets and the degreeof I'h&.paperpresentsa techniquefor overcomingthe dlvarianceof both setswere veried.Theinfluenceof these ffZcultyof apply%ngunzLforlnloaddQ3tribnt%onsfreeof p-8 op the'%!en" jotit directionis shown.Mffethe Influenceof endrestraintwhen stud@ng rockbeharentaj$hodsof evaluating the meatlare used auddiscusvlour underbiaxial. compression. The methodtirolvesthe sedwithrespectto their appl.icabllity in rockmechanics. use of brush platensdevelopedbyHlladorffor testing Altth. concrete.Rewlts obtainedfor Wo&eyan marbleare presentedandsnalyzed. .
sets,
1519
UNIV.GLASGOW,SCOTL4ND,GB E@naential stress-&m& curves.lF,2R. CIV.naCaG,AvC.l975,P.39.
-3
1520 HUMPHREYs,JD Some en~iricslrelationships betweendrainedfriction angles,mechanical snelysesand Atterberg&uite of' naturalsoils at KaiajiDem, Nigeria.Technicalnote. 4F,2T. 1521 BINNIEAND PTNRS.,ICNDON,GB AJAE,A CAMBRIDGEUNIV..GB PARRY.RHG Stress-stra&nbehavlour of two c&tedclsys In tensionana compressPon. 24F,3T,24R. GEZECHN,V25~N3,SEFT.19?5,~95-512. Zonesof totaletresstensionoccurin soil structures suchas~~~~pgv~ts~~dame.Thispa'per aesc$bes theobservedbehavlourofccmpa&edGaultsnd BalderheadCb&?3 in directte&&m WI bending.Elastic bending theory isunsatisf'actoryfor analysingbend&~in soilsand Is replacedby a differential methodnot requiringthe ass&@onof sny preferred stress-strain law. Msxinmmtensllestrainsat failureIncreasewith mouldingwater content.Inltisltsngentana secsntmoduli forboth clays aremsrkedlygreaterintensionthenco~ pression,the relativevaluesbeing influenced by msulding water content.
Texture,structure,composition and density 1522 UNIV.NEWSCUTHWALES,BROKEN HIIL,AUS VUrUKURI,VS An airpumsi.meterforthe porosity of rocke.Mscussfonof p&perby Y.V.RamenaepldB.Venkatan~a, Int.J.Rock Mech.Min.Sci.V.8.1971. INT;J:R%K~.MIN.SCI~GK&E&.ABSlR.V12,N8,AUG.1~5, ~261.
1525 KRExx,WW TWIN CITIESMIN.RES.CENT.MINN.USA The energybalencetheoryandrookfractureenergy measurements for unlexialteQsion.Co&erence.l4F,1T, &.TBH?D CONGRESSINT SCC.ROCKMECH.DEHVER1974, VOL ~,PARTA,1974,&67&3. Anew applicationofthebasic Gr~fiththeoryof rupture ofbrlttle sol$ds,basedon directrmeseur& csffrsu?tme energy requ*~,iSpcaW. The lw!&be hYPOthd?3 fS deltatlawb‘atedbYtie& eXper%%&@ aadnOa-
recoveral51e energyusedinfrf~~&U~%ng is+%& &measured Tenrodr.esweretastedfn1~~a2.teneiQl~ closed-loop control. 1526 SCHNEIDER,HJ UNIV.KARLSRUHE,D Fractureprocessescm shear surfaces by rock frictton. In Germsn.23F,25R. L.MUILER65 ANNIV.PUBLICATIGN,UNlV.KARISRUHE,GFRMANY, 1974,P25-31. Microscopic investigations carriedout onthree different rock typeshave indicetedth&&crofra@ture processes occurringatthe surfacesaforrgwhich shearmt is taking place, are inPluencedbyte%ture, mitnee%lCo&ent, grain size snd roughnessOf the Sliding Smface. 1527 GUDEHUS,G Some cormoncharacteristics of fractureprocessesti overconsolidated soilsan8sed*mentsryrocks.In Germen.2F.15R. L.m 65 ANNIV.PUBLICATIDIY,E83N.~~~,G~, l974.P57-65. si&ii& sna stebilityof heavyovercoasolclsy, capillary- cohesivesoil snd chemical& Consolidated granularsoil are consxdered.
Strength characteristics
See also sbstracts: 1576,1585,1604,1682. 1523 1528 UNIV.ILLlNOIS,URBANA,IIL.,USA MESRI,G RENUMENKO,AF lNST.MIN.SIHER.NOVOSIBIRSK,SU TEHRANPCLYTx%RK,IR RCKHSAR,A Limitingequilibrium of a loosemediumwith a ILLINOISGEZ%HURV.,URBANA,USA BOHOR,BF broken structure. 3F,5R. Composlt%on and compressibility of typicalsamples SOV.MIN.SIC.,VlC,N2,1974,P121-126. of MexicoCity clejr. 28F,2T,41R. G~,V25,N3,SEPT.l975,P527-554. 1529 The conlpoa%tltion snd cos@esslhllityof samplesof Mexico POLITECN.TORINO,I BARLA,G Cltyclay&hnaturralwatercontents intherange421POLITECN.TCRING,I GCFFI,L 574$were deteradned. The ccurlpoebticn ss aeterm%nedby Directtensiletestingof enisotropic rocks.Conferscsnningelectronndcrosco~, X-rsydJffraction ti ence.9F,6R. chemicalanslyseawas found to be 5-1G$sand sl%es,55PROC.THlRDCONGRESS INT.soC.RCCKMECH.,DEHVW,1974, 6546silt-e&ad siliceouemicrofossils, 2G-3oq6 c&vV2,PARTA,1974$93-98. sizedpsrtielesand 5-l* org+c matter.Priraery aind The different problwtewhichwere met in settingup a [email protected] as detersnned inone-dQasnsianalcorieolldationtestswerefam8Cobeln'terre%ated.unit to be used for directtensiletestingof cy$%driare described. TAuaer&?al resri&s, Duringsustainedloading,secondarycompression sndthixo- cal rock speck fromthefinite elementathod,for choosing'tbe!xw& tropichardeningtakepleces~taneously. After susadequatecusp for cements the rOok specimsn,sre pretalnedsecondsrycompresslonthereis adecrease In serited. A seriesof testson anisotropic rocks,with a primaryas well as secondarycompressibility.