Rock Fall Protection for
Vela VKE Consulting Engineers (PTY) Ltd.
Chapman’s Peak Drive, Cape Town,
Producing data for designing rock fall
protection measures for the scenic coastal
route Chapman’s Peak Drive, which was
closed to traffic after fatal rock fall accidents, required the unique combination of
GIS and Bentley software. Bentley products made possible the extraction of profiles, 3D survey details, and cross sections
from large datasets in a very short time.
After incorporating coefficients and characteristics such as slope grades, shapes of
rocks, types of vegetation, etc., into the
model, 40,000 virtual rocks were rolled
down the digital terrain model mountainside. The design ultimately included a
combination of catch fences, a half tunnel,
and a counterfort structure. ;