Colorado Rockfall Simulation Program Version 4.0 (for Windows). Full screen preview. Resource Downloads. File Information, File Dimensions, File Size. Colorado Rockfall Simulation Program (CRSP-3D). As development and traffic have increased in mountainous areas, the need to protect people, roadways, and building structures from falling rocks has become more important. Created in the mid 1980s for the Colorado Department of Transportation, the original CRSP program was a 2D model used to pre.
ROCKFALL HAZARD ANALYSIS USING THE COLORADO ROCKFALL SIMULATION PROGRAM The Colorado Rockfall Simulation Program (CRSP) was developed to provide a statistical analysis of probable rockfall behavior at any given site and to be used as a tool to study the behavior of rockfalls, to determine the need for rockfall mitigation, and to aid in the design of rockfall mitigation. The basic theory behind CRSP is summarized, and the results of recent program modifications and calibration are discussed. CRSP uses numerical input values assigned to slope and rock properties to model rockfall behavior.
The model applies equations of gravitational acceleration and conservation of energy to describe the motion of the rock. Empirically derived functions relating velocity, friction, and material properties are used to model the dynamic interaction of the rock and slope. The statistical variation among rockfalls is modeled by randomly varying the angle at which a rock impacts the slope within limits set by rock size and slope irregularities. The program provides estimates of probable velocity and bounce height at various locations on a slope. Experimental verification and calibration of CRSP was conducted by analyzing videotapes of rocks traveling down a slope.
A comparison of rock velocity and bounce height obtained from the tapes with CRSP prediction indicates reasonable agreement. Also, an evalution of the sensitivity of input parameters indicates that slope angle and surface roughness are the most important parameters on steep slopes. Design graphs are developed based on CRSP simulations by using surface roughness and slope angle to estimate rock velocity and bounce height on uniform slopes. Record URL:. Record URL:. Availability:. Find a library where document is available.
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1288, Geotechnical Engineering 1990. Distribution, posting, or copying of this PDF is strictly prohibited without written permission of the Transportation Research Board of the National Academy of Sciences. Unless otherwise indicated, all materials in this PDF are copyrighted by the National Academy of Sciences. Copyright xC2 xA9 National Academy of Sciences. All rights reserved. Authors:. Pfeiffer, Timothy J.
Higgins, Jerry D. Publication Date: 1990 Media Info. Features: Figures; Photos; References; Tables;. Pagination: p. 117-126. Monograph Title: Geotechnical engineering 1990 - soils, geology and foundations.
Serial:. Issue Number: 1288.
Publisher: Transportation Research Board. ISSN: 0361-1981 Subject/Index Terms. TRT Terms:;;;;;;;;;;;;;;;;;;;;;;. Uncontrolled Terms:;;;. Old TRIS Terms:;. Subject Areas: Data and Information Technology; Design; Energy; Environment; Geotechnology; Highways; Materials; I43: Rock Mechanics; Filing Info.
Accession Number: 00607757. Record Type: Publication.