Page 56 - Sinergia 56 | 2020

EUROPE
MANVIA CONDUTAS CARRIES OUT FIRST WORK
OF THE LISBON GENERAL DRAINAGE PLAN
MANVIA CONDUTAS IS THE FIRST CONTRACTOR TO BE ASSIGNED
TO EXECUTE A WORK UNDER THE GENERAL DRAINAGE PLAN DEVELOPED BY THE LISBON MUNICIPAL COUNCIL.
the Lisbon Drainage Plan Office seeks to promote works that solve the city’s drainage problems, this being the first contract to find a solution for this area.
LUÍS CORREIA
General Director of Manvia Condutas
A
bout the ongoing works,
Luís Correia, General Director of Manvia Condutas,
executed without opening any trench, at depths ranging from 6 to 9 metres.
“The main challenge is to build a small tunnel that is at a great depth and difficult to get to, so if anything prevents the microtunnel machine from doing
its job, we have to recover the machine. But there are other challenges, namely, the work on the machine’s access and arrival shafts, all the components
that involved the installation of this collector, and even the selection of the pipes themselves, their design and the material of which they are made.”
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mentioned that “the Lisbon Drainage Plan Office seeks to promote works that solve the city’s drainage problems, this being the first contract to find a solution for this area”.
The work included the execution
of a new rain water collector under
Av. Infante D. Henrique, built using the microtunneling method. This collector has an outer diameter of 1.5 meters and a total length of 320 metres, and is