Guidelines for Certification and Management of Flexible Rockfall Protection Systems (2016) / Chapter Skim
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10 C H A P T E R 4 The following forms are proposed for use in inspecting, inventorying, and assessing flexible rockfall fence systems. Examples of completed forms can be found in the case history presented in the Final Report, which is available on the NCHRP Project 24-35 web page at www.trb.org.
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11 ROCKFALL SYSTEM CONDITION RATING PRIMARY ELEMENTS Element Condition Ratings 10 to 8 7 to 6 5 to 1 GOOD TO EXCELLENT (A to B)
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12 ROCKFALL SYSTEM CONDITION RATING PERFORMANCE ELEMENTS Element Condition Ratings 10 to 8 7 to 6 5 to 1 GOOD TO EXCELLENT (A to B)
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13 Table 4-6. Proposed rockfall system failure consequence rating.
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14 ROCKFALL SYSTEM INVENTORY FORM Rockfall System ID Chute orPathway Location Roadway and MM Start (Approx) Manufacturer Station Roadway and MM End (Approx)
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15 ROCKFALL SYSTEM CONDITION ASSESSMENT Element Photo Number Condition Narrative Condition Rating Weighting Factor Condition Score Data Reliability Primary System Elements Panel 10 0 Post 10 0 Top Bearing Rope and Anchors 10 0 Lateral Retaining Rope and Anchors 10 0 Uphill Retaining Rope and Anchors 7 0 Post Foundation 3 0 Braking Elements 3 0 Secondary System Elements Panel Secondary Mesh 1 0 Shackles, Clips, Connections 1 0 Corrosion 1 0 Foundation Protection Systems 1 0 Other 1 0 System Performance Performance 10 0 System Rating Weighting Factor (X 10) and Condition Score Totals 0.0 0 0.0 Fence Condition Rating ( = [Condition Score Total/Weighting Factor Total = ]
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