Deformation in open collector drainage systems Dilbar Abduraimova, Makhsud Otaxonov, Elza Tursunova, Davron Allayorov and Sarvar Melikuziyev E3S Web Conf., 263 (2021) 02032 Published online: 28 May 2021 DOI: 10.1051/e3sconf/202126302032