He has been leading several major research projects that are related to mine waste management, underground disposal of nuclear wastes, carbon sequestration and engineered landfill technology. Dr. Fall is currently supervising a large research team of postdoctoral researchers and graduate students (PhD and Masters). His team is performing leading edge research in the geotechnical and geoenvironmental fields in close collaboration with the industry, major federal and provincial governmental institutions, and international partners. Over the years, his research projects have received substantial funding from a number of agencies and private companies.

Dr. Fall is a member of several societies and has been involved in the organization of numerous workshops, seminars, and national and international conferences. He has been repeatedly invited as keynote speaker or lecturer, and regularly acts as a reviewer for scientific committees, peer review journals, and funding agencies.