Strain-Controlled Cyclic Simple Shear Tests on Sand with Radial Strain Measurements

AbstractStrain-controlled cyclic simple-shear tests were performed on silica sand with radial strain measurements. The specimens were tested under a constant K0 condition and subjected to cyclic loading and postcyclic monotonic loading. Threshold cyclic shear strain, volumetric strain, secant shear modulus, and damping ratio are investigated. Generally, the volumetric strain behavior in this study agreed well with literature findings that were investigated using the conventional cyclic direct simple shear test (without radial constraints). Radial strain during monotonic simple shear (postcyclic loading) was found to be a good parameter in monitoring the onset of flow slide in cohesionless soil. The concept of threshold cyclic shear strain, γt, was adequately applied in assessing the specimen volume change. Dynamic engineering properties, including equivalent shear modulus and damping ratio, were also studied. The damping ratio was found to decrease when the cyclic shear strain amplitude was greater than 2...

[1]  X. Kang,et al.  Modified Monotonic Simple Shear Tests on Silica Sand , 2015 .

[2]  Kenneth L. Lee,et al.  Earthquake Induced Settlements in Saturated Sands , 1974 .

[3]  H. Chu,et al.  Settlement of Compacted Clay in a Cyclic Direct Simple Shear Device , 1992 .

[4]  Horst G. Brandes,et al.  Simple Shear Behavior of Calcareous and Quartz Sands , 2011 .

[5]  Raymond B. Seed,et al.  Factors Affecting Apparent Position of Steady-State Line , 1997 .

[6]  Yasuo Matsunaga,et al.  ANALYSIS OF UNDRAINED CYCLIC BEHAVIOR OF SAND UNDER ANISOTROPIC CONSOLIDATION , 1992 .

[7]  G. Lanzo,et al.  Damping at Small Strains in Cyclic Simple Shear Test , 1998 .

[8]  Ken Been,et al.  The critical state of sands , 1991 .

[9]  L. Ge,et al.  Radial Strain Behaviors and Stress State Interpretation of Soil Under Direct Simple Shear , 2015 .

[10]  Abouzar Sadrekarimi,et al.  EFFECTS OF MULTIPLE CORRECTIONS ON TRIAXIAL COMPRESSION TESTING OF SANDS , 2014 .

[11]  D. Wijewickreme,et al.  Postcyclic Reconsolidation Strains in Low-Plastic Fraser River Silt due to Dissipation of Excess Pore-Water Pressures , 2010 .

[12]  Daniel M. Madrzykowski,et al.  Fire Pattern Repeatability: A Study in Uncertainty , 2012 .

[13]  Kohji Tokimatsu,et al.  Simplified procedures for the evaluation of settlements in sands due to earthquake shaking , 1987 .

[14]  K. Yasuhara,et al.  Direct Simple Shear Testing for Post-Cyclic Degradation in Stiffness of Nonplastic Silt , 2004 .

[15]  Daniel Pradel,et al.  PROCEDURE TO EVALUATE EARTHQUAKE-INDUCED SETTLEMENTS IN DRY SANDY SOILS. TECHNICAL NOTE , 1998 .

[16]  Ken Been,et al.  A STATE PARAMETER FOR SANDS , 1985 .

[17]  J. Lindenberg,et al.  CRITICAL DENSITY OF SAND , 1981 .

[18]  Mladen Vucetic,et al.  A direct simple shear device for measuring small-strain behavior , 1995 .

[19]  Fumio Tatsuoka,et al.  Hysteretic Damping of Sands under Cyclic Loading and its Relation to Shear Modulus , 1978 .

[20]  T. Leslie Youd,et al.  Compaction of Sands by Repeated Shear Straining , 1972 .

[21]  I. M. Idriss,et al.  Moduli and Damping Factors for Dynamic Analyses of Cohesionless Soils , 1986 .

[22]  I. Ishibashi,et al.  UNIFIED DYNAMIC SHEAR MODULI AND DAMPING RATIOS OF SAND AND CLAY , 1993 .

[23]  Kenji Ishihara,et al.  Liquefaction-Induced Compaction and Settlement of Sand During Earthquakes , 1988 .

[24]  Kenji Ishihara,et al.  EVALUATION OF SETTLEMENTS IN SAND DEPOSITS FOLLOWING LIQUEFACTION DURING EARTHQUAKES , 1992 .

[25]  Settlement of Dry Sands during Earthquakes , 1972 .

[26]  B. Hardin,et al.  The Nature of Damping in Sands , 1965 .

[27]  Rolando P. Orense,et al.  Strain-Dependent Dynamic Properties of Remolded Sand-Clay Mixtures , 2008 .

[28]  M. Mitchell,et al.  Effect of Parallel Gradations on Crushed Rock-Concrete Interface Behaviors , 2012 .

[29]  A. Casagrande,et al.  Characteristics of cohesionless soils affecting the stability of slopes and earth fills , 1940 .

[30]  Kenji Ishihara,et al.  Liquefaction of anisotropically consolidated sand , 1977 .

[31]  H B Seed,et al.  VOLUME CHANGES IN SANDS DURING CYCLIC LOADING , 1971 .

[32]  Andrew J. Whittle,et al.  MODEL FOR DYNAMIC SHEAR MODULUS AND DAMPING FOR GRANULAR SOILS , 2000 .

[33]  B. Hardin,et al.  VIBRATION MODULUS OF NORMALLY CONSOLIDATED CLAY , 1968 .

[34]  Yonghong Fu,et al.  Characterisation of group behaviour surface texturing with multi-layers fitting method , 2016 .

[35]  Atilla Ansal,et al.  Stiffness degradation of natural fine grained soils during cyclic loading , 2007 .