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Alternating loading and pulling tests on steel I-beam piles
28A
P R O C . E I G ~ INT.CONF.ON SOIL MECH.FOUND.~2~GNG. MOSCOW, 1973,VI.3,1973, P15-17. Boundary COn~Litions for this l~)blem ere deter~Ined, and a solution is ;resented in which the solution for an elastic -~llum is suppl~--~ted by the comdlt~n of eq,~l~brlum of friction forces which in the plastic zones ere perpendicular to the lines of discontinuity. The solution can be used for the determination of stress distribution in the contact plane between a rigid foundation and subsoil subjected to deformation due to mining at depth. 27~ Bt~LAND, JB BUILDING RES. STATION, WATFORD, GB STLT-~,GC BUILDING RES. STATION, WATFORD, GB GI3SON,RE KINGS COLLEGE LONDON, GB A field and theoretical study of the influence of r~n-hom~gemeity o n s e t t l ~ t . Gonference. Session two. 6F,~. P P ~ C . E I G ~ INT.CONF.ON SOIL MECH.FOUND.ENGNG. MOSCOW, 1973 ,Vl. 3,1973, P39-46. The importance of non-hom~6~neity on t~he settlement beneath and around loaded areas is illustrated using results of a full-scale tsnk loading test on chalk at Mundford~ Norfolk and recent theoretical work. The displac~m~-t ~ t t e r n observed around the test tank was found to differ from that ;redicted by simple elastic theory but ~ o d agreement was found with solutions for an e!-~tic half.space and with those obtained using finite element analysis. 275 DALMA~OV, BI L~INGRAD CIV.ENGNG. INST.SU SOTNIEDV, SN L~IN~ CIV.~GNG. INST.SU IDROSH~ICH, NM MOSCOW C I V . ~ N G . INST.SU Investigation of soil deformation in foundation beds of structures. C o n f a r ~ e . Session two. ~F,~T, SR. P H O C . E I G ~ I~T.CONF.ON SOIL MECH.FOUND.~I~GNG. MOSCOW, 1973,VI.3,1973, P55-60 • D~ta from systematic observations of soil deformation in foundation beds of structures erected on a stratum of soft soils is ;resented. Formulae are givan for calculat. ing deep foundation settlements using Mindlin's solution for vertical displacements. The for~lae have been reduced to a s i d l e form, for design im/rposes, using the equiv~ule~t isy~r method proposed by N.A. Tsytovieh. 276 D~BICKI, E OI~OBINSKI,W A contr~ution to the tests on the bearing capacity of stratified subsoil under the foundations. COnfermmce. Seasion t ~ . 6F,3R. FROC.EI~ INT.00NF.ON SOIL MECH.FO'~TD.~GNG. MOSCOW, 1973,V1.3,1973, P61-6~. Quantitative results from m~del tests of foundations on stratified subsoil, with a weak soil layer below th~ sand stratum are analysed. In the tests m~dela of foundations were loaded axially, vertically and with inclined and eccentric loads. An elasto.plastic solution is used in the ama/ysis, taking into account the history of stress increase.
277 ADAMS,JI ONTARIO HYERO,CI~ RA~I~, HS ONTARIO HYI~, CDN The ~ e r a l capacity of deep augered footings .Conference.Session three .13F, IT, 7R. I ~ C . E I G h ~ INT.CONF.ON SOIL MECH.AND FOUND.~GNG, MOSCOW, 1973,V2.1,1973,P1-8. Due to the uncertainties in the design of steel l~ole foundations, a c o m ~ m a i v e study of the problem was undertaken. Model tests were c o n ~ t e d in silica sand in which the width snd eccentricity of loading were varied. Full-scale field tests were then carried out in two different soll com~ilti~ in which footing sizes were varied and mea~urea~mts of load-deflection and soil-;ressure were obtained. ~ e results of the field and laboratory tests are ;resemted and discussed and the discrepsm. cies between theoretical and actual behavi~ur are shown.
278 B E G ~ N N ~ HK SOIL MECH.LAB.DELFT, NL Alternating loading and pulling tests on steel I.beam piles .Conference .Session three. 5F, IT~ 2R. PROC.EIGHTH INT.CONF.ON SOIL MECH.AND FOUND.ENGNG, MOSCOW, 197B. 279 BOTEA, E CIV .~GNG I N S T . B 5 ~ , R M~DLIU, I CIV.~GNG INST.BUCHAREST,R ABR~MESCU, T INST.STUD.PROJ.LAND I ~ V . R Large diameter piles under axial and lateral loads. Conf erenm e .Sesslon three.6F~ 6T~ 5R. PROC.EIGRTH INT.CONF.ON SOIL MECH.AND FOt~VD.ENGNG, MOSCOW, 1973 ~V2 .i~ 1973,P27-3 2 • 28O BROMS,BB SWED. G~0TECH. INST. S T O C ~ L M , S HILL, L SWECO, S~DCE~LM, S Pile foundations for the Kuwait ~bwers.conference. Session three.8F, 2R. PROC.EIGRTH INT.CONF.ON SOIL MECH.AND FOUND.~GNG, MOSCOW, 1973,V2. I, 1973, P33-38. 281 BUT~IELD, R UNIV. S O U T ~ N , GB JOHNSTON, IW UNI~.SOUTHA~ON, GB The stress acting on a contimuous~y Penetrating pile. Conference .Session three .I!F,5R. PROC.EIGHTH INT.CONF.0N SOIL ~"H.~ND FOUND.~GNG, MOSCOW, 1973,V2.1,1973, P39-~5 • The results of field tests on a I 0 ~ d/am~ter by ~m long steel pile Jacked into and out of a I ~ n ~ n Clay bed at comstsat rate are ;resemted. Detailed Inf@r~tion on t h e magnitude end d i s t r i b u t i o n o f t h e s h e a r s t r e s s e s end total radial s~resses acting on the moving pile surface was obtained. ~he measurements obtained are discussed in relation to the undralmmd she~r s t r e m ~ profile of the cls~v and previously ~ l l s h e d results. S82 CHIN, FK UNIV.MAL~Y~, MAL VAIL,~D BINNIE AND P A R T ~ S , M A L Behaviour of piles in alluvium.Conference.Session three .3F,ST, 7R. PBOC.EIGH~ INT.CONF.ON SOIL ~D~CH.AND FOUND.ENQNG, MOSCOW, 1973, V2. i, 1973 ,P47- 52. The main features obsea-ved during the test l o s d ~ to failure of about sixty ;recast concrete piles w ~ e h were driven into soft alluvium are described. The 1osd-settle. ment behaviour with respect to skin friction in pullingand in pushing ~ in total bearing capacity s ~ the in. verse slope as a means for the prediction of their ultimate values are presented and discussed. 283 COOKE,RW BUILDING RES .STAT .WATFORD,GB PRICE IG BUILDING RES .STAT.W~TFORD, GB Strains and displacements aro~ad friction piles. Conference. Session three. 9F, SR. PROC.EIGHTH INT.0ONF.ON SOIL MECH.AND FOUND.~GNG. ~DSCOW, 1973,V2 .i,1973,P53-60. Observations made of soll ~ v ~ t s around sn Instru. ~mated friction pile as it was Jacked into I ~ n ~ n clsy and subsequamtly test loaded are presemted. The ~ v e ments were measured by incl1~meters in horizontal boreholes drilled from a strutted trench to the pile shaft and by probes from the trench and ground surfene. The observations were related to the loads recorded by load cells in the pile shaft and cornered with theoretical analysis. 28~
CZP~NOTA,RB RY~A,B
WARSAW TECH. UNIV. I~L
WARSAW TECH .UNI~.PL
Influence of nelghbouring structures on the deep founda. tions. C ~ n f a r ~ e . Session %~ee.2Ft6R. P R O C . E I G ~ IRT.0ONF.ON SOIL )~CH.AND FOUND.~NG, ~DSCOW, 1973,V2.1,1973,P61-65. The problem of horlzontsl pressures caused by the load
P R O C . E I G ~ INT.CONF.ON SOIL MECH.FOUND.~2~GNG. MOSCOW, 1973,VI.3,1973, P15-17. Boundary COn~Litions for this l~)blem ere deter~Ined, and a solution is ;resented in which the solution for an elastic -~llum is suppl~--~ted by the comdlt~n of eq,~l~brlum of friction forces which in the plastic zones ere perpendicular to the lines of discontinuity. The solution can be used for the determination of stress distribution in the contact plane between a rigid foundation and subsoil subjected to deformation due to mining at depth. 27~ Bt~LAND, JB BUILDING RES. STATION, WATFORD, GB STLT-~,GC BUILDING RES. STATION, WATFORD, GB GI3SON,RE KINGS COLLEGE LONDON, GB A field and theoretical study of the influence of r~n-hom~gemeity o n s e t t l ~ t . Gonference. Session two. 6F,~. P P ~ C . E I G ~ INT.CONF.ON SOIL MECH.FOUND.ENGNG. MOSCOW, 1973 ,Vl. 3,1973, P39-46. The importance of non-hom~6~neity on t~he settlement beneath and around loaded areas is illustrated using results of a full-scale tsnk loading test on chalk at Mundford~ Norfolk and recent theoretical work. The displac~m~-t ~ t t e r n observed around the test tank was found to differ from that ;redicted by simple elastic theory but ~ o d agreement was found with solutions for an e!-~tic half.space and with those obtained using finite element analysis. 275 DALMA~OV, BI L~INGRAD CIV.ENGNG. INST.SU SOTNIEDV, SN L~IN~ CIV.~GNG. INST.SU IDROSH~ICH, NM MOSCOW C I V . ~ N G . INST.SU Investigation of soil deformation in foundation beds of structures. C o n f a r ~ e . Session two. ~F,~T, SR. P H O C . E I G ~ I~T.CONF.ON SOIL MECH.FOUND.~I~GNG. MOSCOW, 1973,VI.3,1973, P55-60 • D~ta from systematic observations of soil deformation in foundation beds of structures erected on a stratum of soft soils is ;resented. Formulae are givan for calculat. ing deep foundation settlements using Mindlin's solution for vertical displacements. The for~lae have been reduced to a s i d l e form, for design im/rposes, using the equiv~ule~t isy~r method proposed by N.A. Tsytovieh. 276 D~BICKI, E OI~OBINSKI,W A contr~ution to the tests on the bearing capacity of stratified subsoil under the foundations. COnfermmce. Seasion t ~ . 6F,3R. FROC.EI~ INT.00NF.ON SOIL MECH.FO'~TD.~GNG. MOSCOW, 1973,V1.3,1973, P61-6~. Quantitative results from m~del tests of foundations on stratified subsoil, with a weak soil layer below th~ sand stratum are analysed. In the tests m~dela of foundations were loaded axially, vertically and with inclined and eccentric loads. An elasto.plastic solution is used in the ama/ysis, taking into account the history of stress increase.
277 ADAMS,JI ONTARIO HYERO,CI~ RA~I~, HS ONTARIO HYI~, CDN The ~ e r a l capacity of deep augered footings .Conference.Session three .13F, IT, 7R. I ~ C . E I G h ~ INT.CONF.ON SOIL MECH.AND FOUND.~GNG, MOSCOW, 1973,V2.1,1973,P1-8. Due to the uncertainties in the design of steel l~ole foundations, a c o m ~ m a i v e study of the problem was undertaken. Model tests were c o n ~ t e d in silica sand in which the width snd eccentricity of loading were varied. Full-scale field tests were then carried out in two different soll com~ilti~ in which footing sizes were varied and mea~urea~mts of load-deflection and soil-;ressure were obtained. ~ e results of the field and laboratory tests are ;resemted and discussed and the discrepsm. cies between theoretical and actual behavi~ur are shown.
278 B E G ~ N N ~ HK SOIL MECH.LAB.DELFT, NL Alternating loading and pulling tests on steel I.beam piles .Conference .Session three. 5F, IT~ 2R. PROC.EIGHTH INT.CONF.ON SOIL MECH.AND FOUND.ENGNG, MOSCOW, 197B. 279 BOTEA, E CIV .~GNG I N S T . B 5 ~ , R M~DLIU, I CIV.~GNG INST.BUCHAREST,R ABR~MESCU, T INST.STUD.PROJ.LAND I ~ V . R Large diameter piles under axial and lateral loads. Conf erenm e .Sesslon three.6F~ 6T~ 5R. PROC.EIGRTH INT.CONF.ON SOIL MECH.AND FOt~VD.ENGNG, MOSCOW, 1973 ~V2 .i~ 1973,P27-3 2 • 28O BROMS,BB SWED. G~0TECH. INST. S T O C ~ L M , S HILL, L SWECO, S~DCE~LM, S Pile foundations for the Kuwait ~bwers.conference. Session three.8F, 2R. PROC.EIGRTH INT.CONF.ON SOIL MECH.AND FOUND.~GNG, MOSCOW, 1973,V2. I, 1973, P33-38. 281 BUT~IELD, R UNIV. S O U T ~ N , GB JOHNSTON, IW UNI~.SOUTHA~ON, GB The stress acting on a contimuous~y Penetrating pile. Conference .Session three .I!F,5R. PROC.EIGHTH INT.CONF.0N SOIL ~"H.~ND FOUND.~GNG, MOSCOW, 1973,V2.1,1973, P39-~5 • The results of field tests on a I 0 ~ d/am~ter by ~m long steel pile Jacked into and out of a I ~ n ~ n Clay bed at comstsat rate are ;resemted. Detailed Inf@r~tion on t h e magnitude end d i s t r i b u t i o n o f t h e s h e a r s t r e s s e s end total radial s~resses acting on the moving pile surface was obtained. ~he measurements obtained are discussed in relation to the undralmmd she~r s t r e m ~ profile of the cls~v and previously ~ l l s h e d results. S82 CHIN, FK UNIV.MAL~Y~, MAL VAIL,~D BINNIE AND P A R T ~ S , M A L Behaviour of piles in alluvium.Conference.Session three .3F,ST, 7R. PBOC.EIGH~ INT.CONF.ON SOIL ~D~CH.AND FOUND.ENQNG, MOSCOW, 1973, V2. i, 1973 ,P47- 52. The main features obsea-ved during the test l o s d ~ to failure of about sixty ;recast concrete piles w ~ e h were driven into soft alluvium are described. The 1osd-settle. ment behaviour with respect to skin friction in pullingand in pushing ~ in total bearing capacity s ~ the in. verse slope as a means for the prediction of their ultimate values are presented and discussed. 283 COOKE,RW BUILDING RES .STAT .WATFORD,GB PRICE IG BUILDING RES .STAT.W~TFORD, GB Strains and displacements aro~ad friction piles. Conference. Session three. 9F, SR. PROC.EIGHTH INT.0ONF.ON SOIL MECH.AND FOUND.~GNG. ~DSCOW, 1973,V2 .i,1973,P53-60. Observations made of soll ~ v ~ t s around sn Instru. ~mated friction pile as it was Jacked into I ~ n ~ n clsy and subsequamtly test loaded are presemted. The ~ v e ments were measured by incl1~meters in horizontal boreholes drilled from a strutted trench to the pile shaft and by probes from the trench and ground surfene. The observations were related to the loads recorded by load cells in the pile shaft and cornered with theoretical analysis. 28~
CZP~NOTA,RB RY~A,B
WARSAW TECH. UNIV. I~L
WARSAW TECH .UNI~.PL
Influence of nelghbouring structures on the deep founda. tions. C ~ n f a r ~ e . Session %~ee.2Ft6R. P R O C . E I G ~ IRT.0ONF.ON SOIL )~CH.AND FOUND.~NG, ~DSCOW, 1973,V2.1,1973,P61-65. The problem of horlzontsl pressures caused by the load