Dr. Lorig has over 25 years of experience in engineering projects requiring specialized geomechanics consulting. His area of expertise is in the application of numerical models to provide solutions to stability, support and dynamics problems in civil and mining engineering. Dr. Lorig has worked extensively at some of the largest open pits in the world and currently is working on studies involving transition from open-pit to underground cave mining at sites around the world. He has served as a member of consulting and peer review boards for several large projects. He has conducted over 40 short courses and has authored more than 50 technical articles, and he is a Registered Professional Engineer in four U.S. states.