>>Research
The focus of my research is understanding and predicting geotechnical earthquake hazards, with particular emphasis on the evaluation of earthquake-induced ground failure (slope instability, soil liquefaction), the effect of soil conditions on earthquake ground motions, and the use of remote sensing to document earthquake hazards.  In addition to my research studies related to geotechnical earthquake engineering, I have also initiated a research program in transportation geotechnics funded by the Texas Department of Transportation (TxDOT).  This work encompasses laboratory evaluation of recycled materials (e.g., crushed concrete and asphalt) for use in transportation infrastructure and the assessment of new, non-nuclear compaction control technologies.

Below is a list of current and previous research projects. Click on each link for a description.

Software
To download Strata visit http://nees.org/resources/strata
To download SigmaSpectra visit http://nees.org/resources/sigmaspectra

Site Effects
Random Vibration Theory Based Site Response
Chi-Chi Earthquake Site Effects
Kocaeli Velocity Measurements

Remote Sensing
Evaluation of Earthquake Effects Using Satellite Images

Liquefaction
In Situ Liquefaction Testing
Pore Pressure Generation of Sands & Silty Sands
Kocaeli Earthquake Liquefaction

Transportation Geotechnics
Non-Nuclear Methods for Compaction Control
Concrete & Aspahlt Backfill

General Earthquake Engineering
Network for Earthqauke Engineering Simulation (NEES)
Electronic Encyclopedia of Earthquakes