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FORMWORK AND SCAFFOLDING
The northernmost, but also most
central as well as closest-located
point to the harbour area, of the
extensive metro expansion meas-
ures is the Place des Martyrs station. The
arch-shaped stop is 144 m long and 23 m
wide – and will be one of the largest subway
stations in the world after completion. The
construction project is part of the ambitious
infrastructure development plan designed to
expand the current almost 9 km long, single-
line metro network in the Algerian capital to
a total of 55 km in length and featuring three
lines over the next 10 years. The modern
metro system will help to reduce the daily
traffic jams and increase the mobility of the
city´s residents. With a population of more
than three million inhabitants, Algiers is also
the most important transport hub in Algeria.
Two cross-sections – one
formwork carriage
Place des Martyrs features two different
cross-sections. The imposing arch width
of 23 m in the middle section, tapers in the
northern and southern directions resulting
in 16,5 m widths respectively.
PERI engineers developed a formwork
carriage construction on the basis of the
VARIOKIT engineering construction kit in
order to be able to cost-effectively realize
both cross-section variants whilst using the
same system components and formwork
RECORD-BREAKING
formwork
With a length of 144 m and a
width approaching 23 m, the
Place des Martyrs metro station
boasts some very impressive
dimensions. In addition, the entire
1,7 km long extension of the
Algiers metro system runs under
historic ground. For this project,
an international team of PERI
engineers designed economically
optimised tunnel formwork
solutions, tailored to meet the
varying requirements.
segments. Furthermore, special attention
was paid to the design of the bracing during
the planning phase as the concreting cycle
length of 5,10 m is relatively short.
Based on the VARIOKIT modular
construction system, the PERI formwork
carriage solution is ideally suited to meet
all project requirements: user-friendly as it
can be hydraulically operated with a control
panel, cost-effective due to the rentable
>
The Algerian metro station Place des Martyrs is 144 m
long and features record-breaking dimensions with
its 23 m width and 14,8 m height. (Photo: PERI)
Based on the VARIOKIT modular system, the
PERI formwork carriage solution is tailored
to meet all project requirements and is also
hydraulically operated. (Photo: PERI)
The PERI UP working scaffold has been optimally adapted to
suit the imposing cross-sectional geometry of the station´s
arched form and is used to execute the waterproofing and
reinforcement work in advance. (Photo: PERI)
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CONSTRUCTION WORLD
MAY
2015