Rockfall Catchment Area Design Guide

Gullixson, C. F.; Pierson, Lawrence A.; Chassie, Ronald G; Oregon. Department of Transportation

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Rockfall Catchment Area Design Guide

2001-11-01
By Gullixson, C. F. ; Pierson, Lawrence A. ; Chassie, Ronald G

[PDF-1.85 MB]

English

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Details:

Creators:

Gullixson, C. F. ; Pierson, Lawrence A. ; Chassie, Ronald G

Gullixson, C. F. ; Pierson, Lawrence A. ; Chassie, Ronald G Less -
Corporate Creators:

Oregon. Department of Transportation
Corporate Contributors:

United States. Federal Highway Administration
Subject/TRT Terms:

[+]

Design Design Charts Field Tests Geotechnology Highways I21: Planning Of Transport Infrastructure Planning And Forecasting Rockfalls Slopes
Publication/ Report Number:

FHWA-OR-RD-02-04
Resource Type:

Tech Report
Geographical Coverage:

Oregon ; United States

Oregon ; United States Less -
TRIS Online Accession Number:

00921539
Edition:

Final Report
Corporate Publisher:

United States. Federal Highway Administration
Abstract:

The data gathered from an extensive research project consisting of rolling approximately 11,250 rocks off vertical; 0.25H:1V; 0.5H:1V; 0.75H:1V; and 1.0H:1.0V slopes of three different heights (40, 60 and 80 ft) into three differently inclined catchment areas (flat, 6H:1V and 4H:1V) has been used to develop design charts for dimensioning rockfall catchment areas adjacent to highways. A standard suite of 250 rocks was rolled for each slope and catchment area configuration tested. The standard suite included 100 rocks averaging 1 ft in diameter, 75 rocks averaging 2 ft in diameter and 75 rocks averaging 3 ft in diameter. The data were evaluated using statistical and graphical methods. The design charts are presented in a "practitioner-friendly" form that can be used to rapidly dimension rockfall catchment areas that satisfy specific rock catching/retention requirements. Based on cut slope angle and height and catchment area slope, the design charts estimate the catchment area widths required to retain percentages of rockfall ranging up to 99%. Design guidelines and step-by-step design procedures are presented and illustrated with three worked example design problems. Seven actual highway project case study examples are also presented. They illustrate the practical application of the design procedure and design charts and/or use of site-specific rock rolling to aid in the rockfall mitigation design. This report documents the test methods, the fieldwork performed, the data gathered, the means of analysis, the research results and sample application of the design charts. The data results in both tabular and graphical form are included in the Appendices. The Appendices also include the detailed project case study application examples.
Format:

PDF
Funding:

SPR-3(032)
Collection(s):

US Transportation Collection
Main Document Checksum:

[+]

urn:sha256:f2c39e9aa3d69c191c94dfa9f88bd785ee022a4b1677d0bbbda69281b6e13ab0
Download URL:

https://rosap.ntl.bts.gov/view/dot/42340/dot_42340_DS1.pdf
File Type:

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Rockfall Catchment Area Design Guide

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