Effect of Ditch Design on Rockfall Hazard Using Rigid Body Model
摘要
Rockfalls are landslides characterized by distinct mechanisms with limited understanding. The extensively interconnected fractures and fragmented rock slopes present a significant threat to the possibility of such an event. To evaluate the hazard of rockfall, it is necessary to conduct an assessment to accurately describe the nature and characteristics of the rock slope being examined. This study focuses on analysing kinematically permissible failure from the rock mass that causes rockfall activity in the area. The strategy related to hazard mitigation has been addressed based on field investigation and rockfall modeling. The statistical evaluation of rockfall potential has been performed with Rocfall 5.0 with rigid body modeling. A study on the effectiveness of ditches, using the Ritchie chart with the derivatives from Section Factor has been conducted to determine the optimum approach of remediation. The analysis proposes important ditch design recommendations based on site-specific requirements.