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Nonlinear analysis of laterally loaded piles in cohesionless soils
37A the reworked sods at controlled motsture content and density The upper portaon of the replaced sod may be hme stabdtsed to preserve htgh motsture content
881297 New method for non-linenr analysis of rigid piles in clay Qt-feng Lm, Meyerhof, G G Comput Geoteeh V4, N4, 1987, P185-212
881293 Base coarse contmination Hmits Jorenby, B N, Hicks, R G Trams Res Rec N1095. 1986, P86-101
Usmg the numerical techmque for solvmg nonhnear simultaneous equatmns, the new method of analysts ts developed for the design of eccentric and/or mchned loaded ngld pdes m clay The method takes account of the nonhnear stress-stram charactensucs of the sod around the pdes and can be used for round, rectangular and other symmetric ngld piles The computed results using this method were found to be m good agreement w~th the measured values of some field tests and laboratory model tests Auth
The use of geotextdes m pavement constructaon to prevent contammatlon of aggregate base by subgrade fines, with consequent change m gradauon, strength, and permeabthty, Is studied Geotextdes modify the process of mtrusmn, the level of stress at the interface, and the process of filtratmn Laboratory tests have been c a m e d out to evaluate the mfiuence of fines on the sttffness of an aggregate base Results are discussed w~th reference to strength and drainage requtrements of forest roads
Foundations See also 881141. 881190, 881192 881294 Centrifuge static and dynamic lateral pile behaviour Tmg, J M, Kauffman, C R, Lowcsek, M Can Geotech J V24. N2. May 1987. P198-207 Centrifuge model tests simulated the cychc stauc and dynamic loading of a smgle vertical pde embedded m saturated sand Dynamic and static p-y curves were obtamed and compared with those from full scale dynamic tests and od mdustry design gutdehnes The centrifuge techmque appears to model dynamic behavtour properly At Ioadmgs causmg stgmficant nonhneanty, static sUffness exceeds dynamic, and material hysteresis is about the same m each case API curves for stauc cychc Ioadmg appear to overestimate the dynamic lateral resistance for medmm dense sands
881295 Experimental study of the bearing capacity of a layer of granular sod of finite thickness (In French) Straj-Eldme, K, Bottero, A Can Geotech J V24, N2. May 1987, P242-251 Tests were earned out on circular and rectangular model surface foundations restmg on a sand layer Foundation-sod behavmur ts displayed graphically and relations between bearIng capacity coefficient and compressible layer thickness, shape factor of the model, and foundation-sand and sandsubstrate frictional properties examined Results are compared with others reported, and a testmg procedure for determmlng the ulumate load for shallow foundations proposed
881298 Infinite layer for the analysis of a single pile Guo, D J, Tham, L G, Cheung, Y K Comput Geotech V4, N4. 1987, P229-249 A solution for a smgle pde embedded m a layered sod ts proposed which uses an mfimte layer model with a cyhndncal coordinate system for the solutmn of static problems m an elastic half space The elements are coupled to spe~al pde elements and can accurately model pde bchavmur Typical examples of a stogie pde are presented to demonstrate the accuracy and versatthty of this approach
881299 Monitoring of pile construction in the Arabian Gulf Peromus, A N, Knstensen, P S Ground Engng V20. NS. July 1987. P23-26 The Saudt Arabm-Bahram Causeway reqmred the mstallatton of 498 large dmmeter precast pdes, to depths 10-22m m sands and weak mudstones PreconstrucUon site mvesugatmn ts described A simple drill mdex, vertical pressure divided by penetration rate, was used to momtor the placement of the pdes This techmque proved a useful method to confirm that pdes were placed m strata as anttopated m the design
881300 Interaction between jack-up ng foundations and offshore platform piles Chow, Y K int J Num Anal Meth Geomech VII. N4, July-Aug 1987, P325-344 Jack up ngs are often cantdevered over pded platforms for further drdhng m the proximity of the platform, and wdl affect the performance of the piled foundations Parametric solutions are provided to evaluate the effects of vertical or horizontal footmg ioadmgs on axml or lateral pde response Homogeneous and mhomogeneous sod conditions are considered A practical apphcatton of the solutions is demonstrated
881296 Nonlinear analysis of laterally loaded piles in cobesionless soils Budhu, M, Davtes, T G Can Geotech J V24. N2. May 1987. P289-296
881301 Elastic foundation settlements on sand deposits Bowles, J E J Geotech Engng Div ASCE V113. N8. Aug 1987. P846-860
An analysts of laterally loaded pdes ts presented which ts based on an extension of the elastic boundary element analysts and takes account of sod yleldmg It ts an alternatwe to the well known p-y method Input sod parameters are mternai friction and one charactensmg the vanaUon of sod suffness with depth Results mdtcate that sod yteldmg has a stgmficant mfluence on pde bendmg moments and lateral displacements Equations statable for routine design are presented Theoretical results agree well with pubhshed case histories
A method for calculatmg the elastic settlement of a foundation on a sand layer ts proposed, which uses the conventmnal settlement equauon, but where the mfluence factor which accounts for stratum depth and foundation shape ts adJusted to a reduced mfluence depth, taken to be a maximum of 5X the foundauon width but not more than stratum depth A number of settlement cases exammed usmg this procedure show very good results It ts not necessary to make large adjustments to sod elastic parameters
RMMS
251 43
© 1988 Pergamon Press pie Reproduction not permitted
881297 New method for non-linenr analysis of rigid piles in clay Qt-feng Lm, Meyerhof, G G Comput Geoteeh V4, N4, 1987, P185-212
881293 Base coarse contmination Hmits Jorenby, B N, Hicks, R G Trams Res Rec N1095. 1986, P86-101
Usmg the numerical techmque for solvmg nonhnear simultaneous equatmns, the new method of analysts ts developed for the design of eccentric and/or mchned loaded ngld pdes m clay The method takes account of the nonhnear stress-stram charactensucs of the sod around the pdes and can be used for round, rectangular and other symmetric ngld piles The computed results using this method were found to be m good agreement w~th the measured values of some field tests and laboratory model tests Auth
The use of geotextdes m pavement constructaon to prevent contammatlon of aggregate base by subgrade fines, with consequent change m gradauon, strength, and permeabthty, Is studied Geotextdes modify the process of mtrusmn, the level of stress at the interface, and the process of filtratmn Laboratory tests have been c a m e d out to evaluate the mfiuence of fines on the sttffness of an aggregate base Results are discussed w~th reference to strength and drainage requtrements of forest roads
Foundations See also 881141. 881190, 881192 881294 Centrifuge static and dynamic lateral pile behaviour Tmg, J M, Kauffman, C R, Lowcsek, M Can Geotech J V24. N2. May 1987. P198-207 Centrifuge model tests simulated the cychc stauc and dynamic loading of a smgle vertical pde embedded m saturated sand Dynamic and static p-y curves were obtamed and compared with those from full scale dynamic tests and od mdustry design gutdehnes The centrifuge techmque appears to model dynamic behavtour properly At Ioadmgs causmg stgmficant nonhneanty, static sUffness exceeds dynamic, and material hysteresis is about the same m each case API curves for stauc cychc Ioadmg appear to overestimate the dynamic lateral resistance for medmm dense sands
881295 Experimental study of the bearing capacity of a layer of granular sod of finite thickness (In French) Straj-Eldme, K, Bottero, A Can Geotech J V24, N2. May 1987, P242-251 Tests were earned out on circular and rectangular model surface foundations restmg on a sand layer Foundation-sod behavmur ts displayed graphically and relations between bearIng capacity coefficient and compressible layer thickness, shape factor of the model, and foundation-sand and sandsubstrate frictional properties examined Results are compared with others reported, and a testmg procedure for determmlng the ulumate load for shallow foundations proposed
881298 Infinite layer for the analysis of a single pile Guo, D J, Tham, L G, Cheung, Y K Comput Geotech V4, N4. 1987, P229-249 A solution for a smgle pde embedded m a layered sod ts proposed which uses an mfimte layer model with a cyhndncal coordinate system for the solutmn of static problems m an elastic half space The elements are coupled to spe~al pde elements and can accurately model pde bchavmur Typical examples of a stogie pde are presented to demonstrate the accuracy and versatthty of this approach
881299 Monitoring of pile construction in the Arabian Gulf Peromus, A N, Knstensen, P S Ground Engng V20. NS. July 1987. P23-26 The Saudt Arabm-Bahram Causeway reqmred the mstallatton of 498 large dmmeter precast pdes, to depths 10-22m m sands and weak mudstones PreconstrucUon site mvesugatmn ts described A simple drill mdex, vertical pressure divided by penetration rate, was used to momtor the placement of the pdes This techmque proved a useful method to confirm that pdes were placed m strata as anttopated m the design
881300 Interaction between jack-up ng foundations and offshore platform piles Chow, Y K int J Num Anal Meth Geomech VII. N4, July-Aug 1987, P325-344 Jack up ngs are often cantdevered over pded platforms for further drdhng m the proximity of the platform, and wdl affect the performance of the piled foundations Parametric solutions are provided to evaluate the effects of vertical or horizontal footmg ioadmgs on axml or lateral pde response Homogeneous and mhomogeneous sod conditions are considered A practical apphcatton of the solutions is demonstrated
881296 Nonlinear analysis of laterally loaded piles in cobesionless soils Budhu, M, Davtes, T G Can Geotech J V24. N2. May 1987. P289-296
881301 Elastic foundation settlements on sand deposits Bowles, J E J Geotech Engng Div ASCE V113. N8. Aug 1987. P846-860
An analysts of laterally loaded pdes ts presented which ts based on an extension of the elastic boundary element analysts and takes account of sod yleldmg It ts an alternatwe to the well known p-y method Input sod parameters are mternai friction and one charactensmg the vanaUon of sod suffness with depth Results mdtcate that sod yteldmg has a stgmficant mfluence on pde bendmg moments and lateral displacements Equations statable for routine design are presented Theoretical results agree well with pubhshed case histories
A method for calculatmg the elastic settlement of a foundation on a sand layer ts proposed, which uses the conventmnal settlement equauon, but where the mfluence factor which accounts for stratum depth and foundation shape ts adJusted to a reduced mfluence depth, taken to be a maximum of 5X the foundauon width but not more than stratum depth A number of settlement cases exammed usmg this procedure show very good results It ts not necessary to make large adjustments to sod elastic parameters
RMMS
251 43
© 1988 Pergamon Press pie Reproduction not permitted