45
november 2013
international
construction
LARGE STRUCTURES
Tackling extremes
Alsina is supplying formwork to support the construction of
banking group BBVA’s new headquarters – a structure that
requires 180,000 m
2
of concrete.
The project began in 2002 and is due to be completed in 2050,
with the running cost standing at US$ 27 billion in 2012. After
completion, up to around 45 billion m
3
of water are to be diverted
annually through the new canals, bringing water from the south
to Beijing in the North.
The construction companies involved with building the 1,200
km middle section are Sinohydro Bureau 11 and Military Police
Hydroelectricity, and have equipped their excavators with Moba’s
Xsite Link system to monitor and measure earthworks.
“When constructing the canals, the correct slope must be
maintained as early as in the earthwork stage, both when working
on the river bed and on the embankments. For this reason, we use
the Link excavator system – with it, you can see exactly how deep
and at which incline work is done,” said Zhang Gong, section
chief of Sinohydro Bureau 11’s equipment department.
The sensors of the excavator system are attached to the bucket,
stick, boom and chassis and record the respective incline angle.
They calculate the excavation depth, the incline and the range of
the bucket.
“With the system, I can help new excavator operators become
qualified employees without a long training period”, Mr Gong
continued. “We work faster and much more productively. In the
same amount of time, we can do about +30% more work.”
Together with co-ordinating the delivery and maintenance of
materials and equipment, safety is clearly another crucial aspect
for any contractor to consider when building large structures.
It will be interesting to see how contractors and manufacturers
continue to work together to keep work progressing efficiently
and safely in the future.
iC
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