The 6th International Conference on Geotechnical Research and Engineering (ICGRE'21) aims to become the leading annual conference in fields related to Geotechnical Engineering. The goal of ICGRE'21 is to gather scholars from all over the world to present advances in the relevant fields and to foster an environment conducive to exchanging ideas and information. This conference will also provide an ideal environment to develop new collaborations and meet experts on the fundamentals, applications, and products of the mentioned fields.