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My research interests are geotechnical earthquake engineering, geophysical imaging, data acquisition and signal processing, and numerical analysis. My current research projects are:
(1) developing fragility functions for bridges in liquefied and laterally spreading ground,
(2) developing design guidelines for pile foundations in liquefied ground,
(3) evaluation of the seismic levee deformation by destructive cyclic field testing,
(4) centrifuge modeling of the large-strain site response behavior of soft clays,
(5) CPT-based ultrasonic imaging of jet grout columns, and
(6) developing correlations between shear wave velocity and penetration resistance at Caltrans bridge sites.