The scope of work included a 770-metre
long main flyover with eight lanes for
vehicular traffic, a 6,630-metre underpass
with four lanes plus a 3-metre carriageway
on each side for non-motorised vehicles,
rotary of 80 metres, and surface level
eight numbers of slip road each of 3,500
metres with 11-metre width on either side of
flyover and underpass.
The project was completed
one day ahead of schedule
within 25 months of
time schedule. The herculean
task was completed
ahead of schedule due to
technical and managerial
competency of engineers
and workers engaged during
entire construction of
the project. The resource deployment, such
as equipment, machineries, manpower
and materials, were exceeding expectations
and the same has been appreciated by
the PWD (client).
Various innovative techniques were
adopted during construction stage to optimise
cost as well as economical and timely
completion of project. The construction of
the superstructure for main flyover was
done by using Balance Cantilever Bridge
Builder Technique. This technique has
been implemented for the first time in
Delhi flyover with record time cycle of six
days achieved during the complete construction
of segments of 3 metres each on
both sides in progression. This was necessary
as the segments of main flyover were
required to be constructed without disturbing
the traffic below.
Also, this technique
reduced the staging shuttering
cost as well as time
for erection and dismantling
of staging and shuttering.
The diaphragm
walls were constructed first
followed by top slab so that
continuous and smooth
traffic would be ensured
during balance construction of underpass.
The grade separator at Ghazipur, Uttar
Pradesh, serves the functional needs of the
people of Delhi, helps in reducing the traffic
intensity, and allows free flow of traffic to
different directions.
Contact: Afcons Infrastructure Ltd,
Afcons House,
16, Shah Industrial Estate,
Veera Desai Road,
Azadnagar, Andheri
(W),
Mumbai 400053.
Tel: 022-67191000
Website:
www.afcons.com