Pushing soil with combined aggregate spherical disc and burial of stem B. Khudayarov, U. Kuziev, B. Sarimsakov, Yu. Rakhimov and S. Khikmatullaev E3S Web of Conf., 365 (2023) 04023 Published online: 30 January 2023 DOI: 10.1051/e3sconf/202336504023