DETERMINATION OF CRITICAL STATE PARAMETERS IN SANDY SOILS - SIMPLE PROCEDURE

The critical state is arguably the most robust criterion for strength design, including post liquefaction strength. The conventional triaxial test is used for the determination of critical state parameters; however, it is time-consuming and the required set of tests is relatively expensive for common geotechnical tasks. A simplified test procedure is developed to determine the critical state line in sandy soils. The procedure is reliable, economical, and fast. In order to verify the simplified test procedure, results are compared against critical state parameters determined in conventional triaxial tests. The comparison shows very good agreement between critical state parameters obtained with the suggested procedure and those gathered with triaxial testing. Limitations are identified.

[1]  A. Schofield,et al.  On The Yielding of Soils , 1958 .

[2]  Steven L. Kramer,et al.  Analysis of Membrane Penetration in Triaxial Test , 1990 .

[3]  李幼升,et al.  Ph , 1989 .

[4]  Gonzalo Castro,et al.  Liquefaction Evaluation Procedure , 1985 .

[5]  A Freeman.  Don't use the 'D' word. , 1992, The NAHAM management journal.

[6]  Jacques Heyman,et al.  Coulomb's Memoir on Statics: An Essay in the History of Civil Engineering , 1972 .

[7]  Alan W. Bishop,et al.  Undrained Triaxial Tests on Saturated Sands and Their Significance in the General Theory of Shear Strength , 1950 .

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

[9]  J. Konrad.  MINIMUM UNDRAINED STRENGTH VERSUS STEADY-STATE STRENGTH OF SANDS , 1990 .

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

[11]  R. Chambon,et al.  Void ratio evolution inside shear bands in triaxial sand specimens studied by computed tomography , 1996 .

[12]  K. Ishihara,et al.  Liquefaction and flow failure during earthquakes, The 33rd Rankine Lecture , 1993 .

[13]  J. L. Chameau,et al.  Undrained Monotonic and Cyclic Strength of Sands , 1988 .

[14]  M. Bolton.  THE STRENGTH AND DILATANCY OF SANDS , 1986 .

[15]  Yoginder P. Vaid,et al.  Cyclic and monotonic undrained response of saturated sands , 1985 .

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

[17]  D. Cornforth,et al.  PREDICTION OF DRAINED STRENGTH OF SANDS FROM RELATIVE DENSITY MEASUREMENTS , 1973 .

[18]  S. Poulos,et al.  Liquefaction Resistance of Thickened Tailings , 1985 .

[19]  W. D. Liam Finn,et al.  STATIC SHEAR AND LIQUEFACTION POTENTIAL , 1979 .

[20]  K. Ishihara.  Liquefaction and flow failure during earthquakes. , 1993 .

[21]  Steve J. Poulos,et al.  THE STEADY STATE OF DEFORMATION , 1981 .

[22]  A. Schofield,et al.  Critical State Soil Mechanics , 1968 .

[23]  Donald W. Taylor,et al.  Fundamentals of soil mechanics , 1948 .

[24]  Gonzalo Castro,et al.  Liquefaction of sands , 1969 .

[25]  Osborne Reynolds Ll.D. F.R.S..  LVII. On the dilatancy of media composed of rigid particles in contact. With experimental illustrations , 1885 .