Guidelines for Certification and Management of Flexible Rockfall Protection Systems (2016) / Chapter Skim
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21.1 Problem Statement 1.1.1 Certification of Rockfall Fence Systems in the United States Rockfall fence systems are used to mitigate rockfall and generally consist of flexible nets or panels that are connected to a post system with energy absorbing braking elements. Rockfall fence systems are currently designed and given an energy rating based on full-scale field testing to determine the energy capacity or energy reduction of a single rockfall event with variable considerations for serviceability after specific impacts.
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3 • Inspection, maintenance, and repair procedures for flexible rockfall fence systems • Development of an asset management plan, including long-term performance and condition measures, and establishment of critical factors and key components in determining estimates of future performance, life-cycle cost, and cost/benefit analysis for maintenance, repair, and replacement decisions for flexible rockfall fence systems This guidebook presents the results of the research effort. A detailed discussion of the research can be found in the Final Report, which is available on the NCHRP Project 24-35 web page at www.trb.org.
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