Research in this area focuses on classical geotechnical engineering as well as emerging geoenvironmental engineering problems. Current research projects focus on developing technologies to enhance the performance of bioreactor landfills, developing new applications and testing methods for geosynthetic products, slope stability analysis and reliability analysis of earth dams and levees, foundation systems, soil dynamics and soil-structure interaction, measuring and modeling unsaturated hydraulic and thermal properties of soils for various applications, remediation of ground water and surface water using electricity, ultrasound, and reactive or sorptive permeable blankets.