More specifically, the works involve the complete runway rehabilitation to turn it into a state-of-the-art infrastructure, including the installation of a rainwater drainage network and a signalling system. The runway lighting is being replaced by the latest LED-based system in order to save energy and reduce the airport&rsquo;s CO2 emissions.
This project requires exemplary logistics since most of the work is carried out at night, when there is no air traffic. Up to 300 people work on the site at the same time and up to 300 tonnes of asphalt are laid every night. Everything accesses and leaves the site through a single point, namely the new E121 checkpoint, where all equipment, materials and machinery can be inspected. As expected, access is subject to extremely strict conditions.
As a result, every night shift needs to be perfectly orchestrated and every minute counts, since, come 6 am, the workers must clear the site before they leave so that the aircraft can use the runway.

State-of-the-art infrastructure

Project partners

Luxairport Piste Avion

Renovation work at Findel Airport

Key figures

English

Location

This is a large-scale project taking place from 2021 to 2023 on Findel Airport apron: the complete rehabilitation of the airport&rsquo;s only runway. With a length of 4,000&nbsp;metres and a width of 60&nbsp;metres, the runway is renovated in sections and only at night, from 11&nbsp;pm to 6&nbsp;am, so as not to disturb airport operations.
This project is scheduled over two years, as the work can only be carried out from April to September because of the local climate. Commissioned by lux-Airport, the project is being carried out by Somo Findel Airport, a consortium of construction companies made up of F&eacute;lix Giorgetti, Karp-Kneip Constructions and JCD Airports.

In 2021, Findel’s only runway gets a makeover. A large-scale project scheduled over two years because most construction work may only take place at night.

A new ultra modern runway for Findel Airport

Rehabilitation of the Findel airport runway by the Somo Findel Airport made of Félix Giorgetti, Karp Kneip and JDC Airport.

The only runway at the Findel Airport has been completely rehabilitated. In order to maintain the airport activities, the work was carried out only at night.

Runway rehabilitation of the Findel airport

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Luxairport Travaux Gio1

For lot 29-31, the teams stabilised the 370m2 of facade and pinned the two adjoining gables over an area of 880m2. The existing buildings were demolished and 28 tie rods installed under the facade to be retained.
The project consists of two underground levels and seven above-ground levels. It includes 2,300m2 of offices and 876m2 of retail space. The structural work began in late September 2021 and is scheduled for completion by the third quarter of 2022.
With regard to lot 49-51, the 198m2 of facade were stabilised, as was the adjacent roof, and an adjoining gable of approximately 225m2 was pinned. For this project, which stretches from Avenue de la Gare to Rue du fort Neipperg, the earthworks proved more complex than anticipated, as our teams had to dig through very hard category 7 rock. It took a 100-tonne excavator ripper, a rock breaker, a disc saw and a milling saw to clear the 18,000 tons of excavated materials to be removed.
<h3>Work in restricted spaces, a real challenge for logistics</h3>
This work is a real challenge for our teams who have to work in very restricted spaces and demonstrate exemplary capabilities in terms of logistics, as many factors make their progress more complicated: road and pedestrian traffic which cannot be interrupted, access to the site, the use of heavy-duty machinery, shift work scheduling, relations with local residents and noise pollution, among other things. Some work, such as casting concrete slabs, is carried out at night to make sure teams can proceed without blocking street traffic.

Technical and logistics challenges

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Luxembourg-City

This is a very technical project at 29-31 and 49-51 Avenue de la Gare in Luxembourg City. Two locations where F&eacute;lix Giorgetti demolished existing buildings to make room for a new mixed-use structure. There was one constraint, however: the historic facades had to be preserved and restored. A mission that was carried out in collaboration with the architect of the National Sites and Monuments Service. This major demolition phase required securing all the neighbouring homes.

At 29-31 and 49-51 Avenue de la Gare in Luxembourg-City, Félix Giorgetti is blending past and present.

Blending past and present

At 29-31 and 49-51 Avenue de la Gare in Luxembourg-City, Félix Giorgetti is blending past and present

Buildings avenue de la Gare

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Earthworks at 49-51 avenue de la Gare

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Facade stabilisation at 29-31 avenue de la Gare

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29-31 avenue de la Gare

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Building at 29-31 avenue de la Gare

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Findel Airport

As part of the rehabilitation work on the Findel runway, a large number of external employees and vehicles, as well as a large volume of materials, have to pass through the highly secure airport site. Indeed, up to 300 people may be working on the site every night and 3,000 tons of asphalt be delivered. In order to be able to inspect everything, lux-Airport commissioned F&eacute;lix Giorgetti, in a consortium with Karp-Kneip Constructions, to build a new checkpoint.
The new building is designed to check people working on the site, materials and vehicles as they enter or leave the site. It includes four security gates, three for incoming vehicles and one for outgoing ones. A permanent timber building was erected between the security portals where employees of external contractors are checked and where a registration office issues them with daily badges.
There is also a conveyor belt to check personal items and a security gate. The checkpoint also includes a building where goods are checked using a very large X-ray machine, big enough to process whole pallets.
Once the renovation works are complete, the checkpoint will be used for other works that will be carried out on the taxiways (aircraft routes between the taxiway and the tarmac).

Félix Giorgetti, in a consortium with Karp-Kneip Constructions, built for lux-Airport a new checkpoint as part of the rehabilitation work on the Findel runway.

New secure access point to the runways

Checkpoint E121

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A lot of work was carried out before reaching this stage. This included:
<ul>
<li>The excavation of a huge pit used to site-cast the elements;</li>
<li>Building soldier pile walls to shore up the site-casting pit;</li>
<li>The construction of a 1,300m2 guide slab with a very rigorous flatness, less than 3mm of play, which was necessary to push the elements forward;</li>
<li>Casting the slab and the walls of the prefabricated frames;</li>
<li>Building the formwork for the slab of the frames, using a shoring tower for the whole process;</li>
<li>Concreting the slab of the prefabricated frames;</li>
<li>Waterproofing the slabs;</li>
<li>Site-casting concrete thrust blocks so that the two frames could be jacked.</li>
</ul>
<h3>Race against time</h3>
An actual race against time began from the moment the overhead lines were deactivated. 36 hours during which our teams relayed each other continuously in three shifts. 12,000m3 of earth were excavated in order to open the way for the frames before preparing the guide slab and starting to thrust the frames using jacks.
This delicate operation took place in two stages. It began by thrusting the first element: raised by about 5cm and already in line, it reached its final location. The second frame was first pushed laterally so that it would be positioned along the right axis and then thrust forward until it was next to the first frame.
Once this stage was completed, it was necessary to backfill all around the tunnel in order to recreate the embankment and proceed with laying the tracks and signals for CFL.
The project also involved building a stormwater tank next to the new tunnel. Due to the lack of space, the structure was built at the foot of the CFL tracks using considerable shoring and a 14m deep pit.

Extensive preparatory work

Works carried out

Rangwee Ii

Thrusting of the Rangwee II tunnel in Howald

Luxembourg - Hollerich

This project involves building a second tunnel to connect the Gl&uuml;ck roundabout to Rue des Scillas, south of the Luxembourg capital. Rangwee II is composed of two 2,500-ton frames, each 30m long, 13m wide and 7m high.
The structures were built side by side, at the foot of the embankment supporting the CFL railway tracks.
Each element was positioned in just two weeks using the box jacking process. The operation required blocking the CFL tracks and setting up continuous work in three shifts.

As a result of the development of the multimodal hub in Howald and the redevelopment of Rue des Scillas, traffic into Luxembourg will increase at the Glück roundabout. Félix Giorgetti built a second tunnel alongside the Rangwee tunnel.

Box Sliding Operation

Félix Giorgetti built a second tunnel alongside the existing Rangwee tunnel.

Rangwee Tunnel II

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Rangwee Tunnel

Rangwee II tunnel - preparation of the opening

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Ban de Gasperich Park

Located along Boulevard Kockelscheuer and opposite the National Fire and Rescue Centre (CNIS), the park will include numerous facilities: a playground for children, sports facilities (multi-sport, beach volleyball and petanque courts, fitness trail), a refreshment bar, a 7,000m2 artificial pond, various facilities for walkers (pergolas, bleachers, footbridges to walk around the pond). The project also provides for the ecological restoration of the Drosbach stream over a substantial length of 810 metres in order to reduce the risk of flooding.
Consequently, trees have been felled to make way for the new facilities, and new sewage and rainwater networks have been installed.
The park will be accessed by seven entrances, linked by a network of branching paths covering a total distance of 4 km. A large, fully paved main loop of 1,850m will be available for pedestrians and cyclists, supplemented by 2.2km of crushed gravel paths. A raised walkway on stilts (630m) will be deployed along the Drossbach stream. Some paths will be built using large trapeze-shaped slabs to create a circle. More than 300 slabs in total, prefabricated by Contern.

The Gasperich Park project is part of the development of the new Ban de Gasperich district. Covering an area of 16.6ha, it is the largest park and the green lung of the Luxembourg capital.

Luxembourg City’s Largest Park

Civil engineer mission to create the Ban de Gasperich public park

Covering an area of 16.6ha, it is the largest park and the green lung of the Luxembourg capital.

Ban de Gasperich public park

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20220510 Parc Gasperich

Public park Ban de Gasperich - Installation of paths on stilts on the edge of the pond.

With its 120m length and 90m width, the work consists of a mixed structure, in metal and concrete, on 6 levels including one in the basement for a total capacity of 2,000 places. Its facade will be adorned with expanded metal cassettes.
As the schedule being tight and the project multifaceted, important coordination work was necessary to deliver the project on time.
Our teams opted for a drawer construction. Thus the carpentry work was able to begin on one part while on the other the main work was still in progress.
An organisation made possible by the installation of two Skyliners Liebherr cranes on rails.

2,000 parkings for mobility

High capacity building

Pr Cloche or 3 D

Key Figures

Luxembourg - Cloche d'Or

At the entrance to the capital, in the Cloche d'Or district, the P+R takes place on boulevard Kockelscheuer, next to the new national stadium.
This project is part of the ongoing work at the Cloche d'Or exchange hub and will allow users to park their cars and take the tram, bus or even bycycle via a V&eacute;l'oh station. The aim is to reduce traffic within the capital.
The car park will also be accessible via two underground passages, for pedestrians to get to the stadium and its multifunctional square and for cars from the Kockelscheuer.

Félix Giorgetti is in charge of the construction of a new P + R with 2,000 parking spaces in the new Cloche d’Or district. Carried out for the Administration of Bridges and Roads, this project aims to ease the flow of traffic in  Luxembourg

Facilitate mobility in the capital

Facilitate mobility in the capital with a 2,000 parking in the new Cloche d'Or district.

Construction

Unique know-how

Civil Engineering

Residential Buildings

Office Buildings

Public Infrastructure

Industrial and Commercial Buildings

Logistics Centre

Projects

Runway rehabilitation of the Findel airport

2021 - 2023

Buildings avenue de la Gare

2021 - 2022

Checkpoint E121

2020 - 2021

Rangwee Tunnel II

2020 - 2022

Ban de Gasperich public park

2020 - 2023

Cloche d’Or P+R

2020 - 2023

Projects

Runway rehabilitation of the Findel airport

2021 - 2023

Buildings avenue de la Gare

2021 - 2022

Checkpoint E121

2020 - 2021

Rangwee Tunnel II

2020 - 2022

Ban de Gasperich public park

2020 - 2023

Cloche d’Or P+R

2020 - 2023

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