Construction of fairways and reconstruction of channels using rotary-bucket dredgers and calculation of soil-collecting devicesYurii Volodin, Olga Marfina, Nikolay Arefyev, Yurii Matveev and Nikolay PopovE3S Web Conf., 274 (2021) 13003DOI: https://doi.org/10.1051/e3sconf/202127413003