Mechanics of Lateral Spreading Observed in a Full-Scale Shake Test

This paper examines in detail the mechanics of lateral spreading observed in a full-scale test of a sloping saturated fine sand deposit, representative of liquefiable, young alluvial and hydraulic fill sands in the field. The test was conducted using a 6-m tall inclined laminar box shaken at the base. At the end of shaking, nearly the whole deposit was liquefied, and the ground surface displacement had reached 32 cm. The presented analysis of lateral spreading mechanics utilizes a unique set of lateral displacement results, DH, from three independent techniques. One of these techniques—motion tracking analysis of the experiment video recording—is especially useful as it produced DH time histories for all laminar box rings and a complete picture of the lateral spreading initiation with an unprecedented degree of resolution in time and space. A systematic study of the data identifies the progressive stages of initiation and accumulation of lateral spreading, lateral spread contribution of various depth ranges and sliding zones, their relation to the simultaneous pore pressure buildup, and the soil shear strength response during sliding. DOI: 10.1061/ASCEGT.1943-5606.0000409 CE Database subject headings: Soil liquefaction; Residual strength; Hydraulic fill; Full-scale tests; Lateral displacement. Author keywords: Liquefaction; Residual strength; Hydraulic fill; Full-scale tests; Lateral displacement.

[1]  S. Olson,et al.  Analyzing Liquefaction-Induced Lateral Spreads Using Strength Ratios , 2008 .

[2]  Raghudeep Bethapudi.  Liquefaction induced lateral spreading in large-scale shake testing , 2008 .

[3]  Ricardo Dobry,et al.  Post-Triggering Response of Liquefied Sand in the Free Field and Near Foundations , 1998 .

[4]  Ricardo Dobry,et al.  PILE RESPONSE TO LATERAL SPREADS: CENTRIFUGE MODELING , 2003 .

[5]  Robert V. Whitman,et al.  Initial Results from a Stacked Ring Apparatus for Simulation of a Soil Profile , 1981 .

[6]  浜田 政則,et al.  Case studies of liquefaction and lifeline performance during past earthquakes , 1992 .

[7]  S. Thevanayagam,et al.  Full-scale laboratory tests using a shape-acceleration array system , 2008 .

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

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

[10]  Ahmed-W. Elgamal,et al.  Analysis of Site Liquefaction and Lateral Spreading Using Centrifuge Testing Records , 1996 .

[11]  N. Newmark.  Effects of Earthquakes on Dams and Embankments , 1965 .

[12]  Ross W. Boulanger,et al.  SPT- and CPT-Based Relationships for The Residual Shear Strength of Liquefied Soils , 2007 .

[13]  K. Stokoe,et al.  Liquefaction resistance of soils from shear-wave velocity , 2000 .

[14]  Kohji Tokimatsu,et al.  Lateral load on piles due to liquefaction-induced lateral spreading during one-g shake table experiments , 2006 .

[15]  Timothy D. Stark,et al.  Liquefied strength ratio from liquefaction flow failure case histories , 2002 .

[16]  Michael K. Sharp,et al.  Sliding block analysis of lateral spreading based on centrifuge results , 2002 .

[17]  Robert V. Whitman,et al.  Dynamic Centrifugal Modeling of a Horizontal Dry Sand Layer , 1985 .

[18]  G Mesri,et al.  Closure of "Undrained Shear Strength of Liquefied Sands for Stability Analysis" , 1992 .

[19]  Alan V. Oppenheim,et al.  Discrete-Time Signal Pro-cessing , 1989 .

[20]  Michael K. Sharp,et al.  EFFECTS OF SAND PERMEABILITY AND WEAK AFTERSHOCKS ON EARTHQUAKE-INDUCED LATERAL SPREADING , 2001 .

[21]  Ricardo Dobry,et al.  Undrained Monotonic and Cyclic Triaxial Strength of Sand , 1986 .

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

[23]  P. Robertson,et al.  Evaluating cyclic liquefaction potential using the cone penetration test , 1998 .

[24]  J. K. Mitchell.  Densification and Improvement of Hydraulic Fills , 1988 .

[25]  B. Kutter,et al.  LIQUEFACTION-INDUCED LATERAL SPREADING OF MILDLY SLOPING GROUND. TECHNICAL NOTE , 1994 .

[26]  Ahmed Elgamal,et al.  Lotung Downhole Array. II: Evaluation of Soil Nonlinear Properties , 1995 .

[27]  C. B. Crouse,et al.  Centrifuge liquefaction tests in a laminar box , 1988 .

[28]  R. Dobry,et al.  Modeling of Lateral Spreads in Silty Sands by Sliding Soil Blocks , 1992 .

[29]  T. Leslie Youd,et al.  Mapping of Liquefaction Severity Index , 1987 .

[30]  Lee A. Danisch,et al.  Wireless Shape-Acceleration Array System for Local Identification of Soil and Soil Structure Systems , 2007 .

[31]  S. Thevanayagam,et al.  Laminar Box System for 1-g Physical Modeling of Liquefaction and Lateral Spreading , 2009 .

[32]  W. F. Marcuson,et al.  Liquefaction Resistance of Soils: Summary Report from the 1996 NCEER and 1998 NCEER/NSF Workshops on Evaluation of Liquefaction Resistance of Soils , 2001 .

[33]  Gonzalo Castro,et al.  Re‐Examination of Slide of Lower San Fernando Dam , 1985 .

[34]  Ross W. Boulanger,et al.  Semi-empirical procedures for evaluating liquefaction potential during earthquakes , 2006 .

[35]  Kenji Ishihara,et al.  Liquefaction of Soils During Earthquakes. , 1974 .

[36]  Michele Jamiolkowski,et al.  Evaluation of Relative Density and Shear Strength of Sands from CPT and DMT , 2003 .

[37]  Steven F. Bartlett,et al.  Revised Multilinear Regression Equations for Prediction of Lateral Spread Displacement , 2002 .

[38]  Robert V. Whitman.  HYDRAULIC FILLS TO SUPPORT STRUCTURAL LOADS , 1970 .

[39]  Ricardo Dobry,et al.  Residual Strength and Large-Deformation Potential of Loose Silty Sands , 1995 .

[40]  Ahmed Elgamal,et al.  LOTUNG DOWNHOLE ARRAY. I: EVALUATION OF SITE DYNAMIC PROPERTIES , 1995 .