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  1. ; ; ; ; ; ; (, Engineering Structures)
    Full Text Available 
  2. ; ; ; ; ; ; (, 4th International Conference on Performance-based Design in Earthquake Geotechnical Engineering)
    Accepted Manuscript Full Text Available
  3. ; ; ; ; ; ; (, Soil Dynamics and Earthquake Engineering)
    null (Ed.)
    Full Text Available 
  4. ; ; (, Proceedings of the 7th International Conference on Earthquake Geotechnical Engineering, (ICEGE 2019))
    : An improvement to the field liquefaction testing method that presently involves one large mobile shaker is under development. The improvement is designed to permit simultane-ously determination of both linear and nonlinear shear moduli of soil during large-strain shaking tests. The improved method requires two mobile shakers. Small-amplitude, high-frequency motions (160 Hz) are generated with a small shaker named Thumper. These motions are su-perimposed on larger-amplitude, lower-frequency motions (25 Hz) gener-ated by a larger shaker named Rattler. By operating the shakers at distinctly different fre-quencies in perpendicular planes, small-strain shear moduli can be determined at multiple times (>6) during each cycle of higher-strain shaking with Rattler. The Spectral-Analysis-of-Body-Waves (SABW) method is implemented to continuously evaluate the small-strain shear moduli. These initial tests show that the soil skeleton can be studied during larger-strain cycling. The goal is to improve the characterization and understanding of soils un-dergoing nonlinear loading processes. 
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    Accepted Manuscript Full Text Available