Masters Theses

Keywords and Phrases

CRSP; Geometry; Modeling; Rocfall; Rockfall; Slope


"Most routes in mountainous areas suffer from rock falling, rolling and bouncing risk. There are many computer programs concerned with simulating the rockfall problem, and whereas they have the same purpose, they however differ in the input data that's needed to simulate the problem, and they also differ in the way of processing and kind of output.

This study used Rocfall® and the Colorado Rockfall Simulation Program (CRSP®) to simulate sixty-three models of varying slope geometry, where only the slope geometry is changed with the same material properties for both the slope and the rocks.

Both programs were fast and easy in the data input stage, whereas the 'Barrier' feature of Rocfall added an advantage over the CRSP program in enhancing the solving of the rockfall problem. Also, 'Data Collectors', 'Results Animation' and 'Graph Distribution' on the slope profile help display the analysis results in Rocfall.

Generally, the Rocfall and CRSP program results are not similar. The rock falls at a different angle in each program; CRSP is closest to the Physics theory, so that affects the results. Also, the rocks can be located just at (X=0) in CRSP that affects the allowed number of rocks falling along slope profile.

Despite of the differences between the Rocfall and CRSP programs, their results indicated the slopes with 900 slope angle is the ideal slope geometry for rockfall problem. For vertical slopes, no rocks passed the shoulder edge onto highway in both programs. CRSP results indicated that the percentage of rocks that reach the highway are increasing when the slope height increases"--Abstract, page iii.


Maerz, Norbert H.

Committee Member(s)

Rogers, J. David
Anderson, Neil L. (Neil Lennart), 1954-


Geosciences and Geological and Petroleum Engineering

Degree Name

M.S. in Geological Engineering


Missouri University of Science and Technology

Publication Date

Spring 2017


xi, 63 pages

Note about bibliography

Includes bibliographical references (pages 61-62).


© 2017 Mariam S. Al E'bayat

Document Type

Thesis - Open Access

File Type




Thesis Number

T 11073

Electronic OCLC #