Static and dynamic impact forces on a rigid barrier due to dry debris flow simulated by a DEM-based granular column collapseAman Ujjwal, S. Sureka, Govind Kant Mishra, Mousumi Mukherjee and Arindam DeyE3S Web of Conf., 415 (2023) 06019DOI: https://doi.org/10.1051/e3sconf/202341506019