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CONSTRUCTION WORLD
APRIL
2015
PROJECTS AND CONTRACTS
2 and 3, either side of the river, were founded
on insitu rock.
One interesting fact about the beams
is that no curvature or pre-stressing was
designed for, but rather reinforcing steel in
tension and compression. The lifting of the
beams was approached with some appre-
hension by the contractor, but no sagging or
positioning problems were encountered.
Some challenges were encountered
with the quality assurance testing on the
piles. One instance was discovered where
an anomaly was found on the outside of the
pile. This problem was not initially identified
by the cross-hole sonic logging test between
two opposite tubes, which are situated inside
the rebar cage. This anomaly was discovered
when the pile was opened up prior to the
construction of the pile cap.
Conclusion
This project is one of the first of this magni-
tude whereby no stop/gos were allowed,
unless where existing structures prohibits
the adding of road width to sustain two
way traffic.
The design and construction supervi-
sion by the joint venture of AECOM/DMV
PROJECT TEAM
• Client:
SANRAL
• Consultant:
AECOM/DMV Baeletsi JV
• Contractor:
Raubex Construction
MAIN, LEFT:
Base construction in progress
& RIGHT:
Sub-base stabilisation in progress.
Baeletsi (the latter company has offices in
Harrismith) submitted a comprehensive
design and supervision strategy and have an
equal number of personnel on site during the
supervision phase. The site supervision team
has also been assisted by a learner liaison
officer seconded to the project by SANRAL as
well as four students in training.
The project engineer during the design
phase was Gert Fourie of AECOM, while
Werner Venter of DMV Baeletsi is the project
engineer for the construction phase of the
project. The project should be completed by
August 2015.
Backfill in progress at tributary culvert.
Fill completed over tributary culvert area.
Deck slab reinforcing in progress.
Deck slab reinforcing in progress.
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