2019 CGS-SOS Annual Dinner – The Evolution of Specialty Geotechnical Construction Techniques: The “Great Leap” Theory We would like to thank all the participants of CGS-SOS Annual Dinner Lecture, which took place on May 16, 2019. 2019 CGS-SOS Annual Dinner – The Evolution of Specialty Geotechnical Construction Techniques: The “Great Leap” Theory admin 2019-05-17T10:28:50+00:00