Strutting Technology for Italian Job
Groundforce, has supplied a modular proprietary excava-
tion solution for one of Italy’s most prestigious construc-
tion jobs – the new M9 Museum in Mestre.
The area where the M9 is being built covers 9,000 m²
and includes a former 16th century Benedictine monas-
tery, the former local police headquarters and a building
with offices and businesses.
Groundforce supplied its MP250’s props for the con-
struction of two underground levels, which required
excavating to a depth of some 9 metres below the ground
level, retained by concrete diaphragms.
Given the considerable excavation depth, it was nec-
essary to construct earth retention works with concrete
diaphragms. Installing Groundforce props helped avoid
having to create a great number of tension members.
Using a modular hydraulic shoring system also offered
significant advantages and cost savings over traditional
steel methods by reducing the hours required for the
works - the first installation of props at Mestre was com-
pleted in just one day.
The MP250’s props were equipped with 1,220 mm
“super-extension” that are used where adequate lighting
must be covered without intermediate supports. In this
particular underground environment, they are 30 metres
long. In addition, the modular composition of the tubes
greatly facilitates installation, removal and transport.
The second installation of 4 Groundforce struts was
delivered to the building site in mid-May for completion
of the excavation. Using this technology recommended by
Sogen S.r.l. (a Padova consulting company specialising in
geotechnical and structural engineering) proved to be a
solution that was more advantageous than the initial pro-
ject that proposed excavating with walls retained by tradi-
tional struts and walls retained with tension members.
Contractors World International Vol 6 No 4
Delivery of TSHD “Hondarra”
The delivery of the 1.200 m³ TSHD “Hond-
arra” is the 4th TSHD built in the Spanish-
Dutch cooperation between Astilleros
de Murueta and Damen Dredging Equip-
The hopper dredger will perform
maintenance dredging duties in the har-
bour of Bayonne and supply sand to the
nearby beaches. The “Hondarra” is the
first dredger of the CCI Bayonne Pays
The hopper dredger has been de-
signed by Bilbao-based Astilleros de Mu-
rueta, as a straightforward fit-for-purpose
The grab crane is used for removing