The primary objective of this study was to develop simple, empirical tools to evaluate liquefaction problems in level and sloping ground. The proposed correlations and procedures are particularly useful as screening tools because of their simplicity. Specifically, these procedures include: 1. CPT-based level ground liquefaction resistance relationships for sandy soils; 2. SPT- and CPT-based relationships to estimate the yield shear strength available at the triggering of liquefaction in ground subjected to a static shear stress; 3. SPT- and CPT-based relationships to estimate the liquefied shear strength available at large deformation after the triggering of liquefaction in ground subjected to a static shear stress; and 4. A comprehensive liquefaction analysis procedure for ground subjected to a static shear stress that addresses liquefaction susceptibility, triggering of liquefaction, and post-triggering stability. The author collected a database of 172 level ground liquefaction and nonliquefaction case histories where CPT results are available. These cases were separate
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