In the frame of invited lectures by collaborative research center SFB 837, Prof. Mohammad M. Ahmadi (Sharif University, Tehran, Iran) visited the Chair of Foundation Engineering, Soil and Rock Mechanics.

During his stay, he delivered an invited talk on "Determination of in-situ horizontal stress in sand via CPT" where the researchers at collaborative research center SFB 837 also attended this lecture. Additionally, the PhD students and postdocs at the chair of Foundation Engineering, Soil and Rock Mechanics introduced their research topics to Prof. Ahmadi by short presentations in order to initiate further collaboration between two groups.

In addition, Chair of Foundation Engineering, Soil and Rock Mechanics has the pleasure to host Mr. Soheil Ghyasvand (PhD student at Amirkabir University, Tehran, Iran) for a nine-month research stay (Sept. 2016 - June 2017) at RUB to collaborate on "Determination and optimization of different ground reinforcement methods for old railway tunnels using finite element analysis".