Abstract:
This overview explores the simple drapery systems for rockfall protection, focusing on both the functional and the technical aspects involved in their design. Since the 1950’s, steel wire mesh has been used as a measure to mitigate rockfall hazards. In its most basic form, these systems consist of a steel fabric anchored to a top row of anchors and directs dislodged rocks to the bottom of the protected slope. Initially these were designed based on empirical observations and practical experience. Although several advancements have been made in understanding the dynamics and load-stress distribution on these systems, their inherent simplicity often leads designers to bypass calculations and site-specific analysis. Comprehensive design algorithms now evaluate the suitability of the solution, accounting for a variety of site conditions including debris and snow loads, anchoring requirements, appropriate mesh strength and environmental protection measures. The time-consuming and resource demanding nature of these calculations lead to the development of software for site-specific design of rockfall drapery systems. This software not only streamlines the process of designing simple drapery systems, but it considers multiple site-specific conditions for a more effective solution. Ultimately, this overview shows that while significant progress has been made in the design procedure for rockfall draperies, continuous improvement and wider community adoption are essential to improve the safety and effectiveness of these protective structures