"We have to be perfectly organised," explains our site manager. We are working along a busy road. The safety rules are therefore very strict. For example, you can't get within one and a half metres of the concrete blocks. Vehicle traffic is limited to 70 km/h, but you never know. A truck could hit the wall and cause serious damage."
Another requirement is the circulation of authorities. One lane must be accessible at all times to facilitate their intervention through the heavy traffic. An access road was therefore created on what stood as the hard shoulder, as well as refuge areas in case of a break down.
The final constraint was the motorway service area at the beginning of the section under construction. "The petrol station is the busiest in Europe, and closing it is not an option. We therefore had to find solutions to manage the traffic and maintain its activity."

The A3 widening project has some special features, particularly in terms of organisation, safety and traffic management.

Optimal safety

Elargissement A3 1

Widening of the A3 motorway on the Croix de Gasperich and the Living interchange section by Félix Giorgetti in the France-Luxembourg direction.

English

The major project to widen the A3 to 2x3 lanes between the French border and the capital began in mid-2022. This project is long awaited by the thousands motorists who use the route every day, and represents a major mobility challenge for the country. As part of this large-scale project, F&eacute;lix Giorgetti is in charge of the construction of the section between the Croix de Gasperich and the Livange interchange. More than two years of work are planned for this 4km section. Initially, the work involve extensive earthworks with the removal of more than 200,000m3 of material. For this purpose, our teams have been equipped with a Komatsu PC 490, which is ideal for large-scale work, and a Liebherr R926 Compact, which is controlled by a Leica GPS to ensure perfect embankment. The motorway widening also includes the laying of sewerage and multi-tube channels (for electricity and fiber-optic internet), the construction of foundations for future gantries, the laying of acoustic walls, and the creation of a 16,450m3 retention basin with a large vegetated area.

Félix Giorgetti is taking part into the major mobility project of the widening of A3 motorway.

Widening of A3 motorway

Widening of the A3 motorway in the France-Luxembourg direction over a 4 km section by Félix Giorgetti for the Administration des Ponts et Chaussées

Elargissement A3 2

A Komatsu PC 490 for big earthwork tasks.

Elargissement A3 3

The speed has been limited to 70km/h and a lane is reserved to authorities.

Elargissement A3 4

Widening of the A3 motorway.

Elargissement A3 5

Elargissement A3 6

The project also includes the creation of a retention bassin of 16,450m3 with a large vegetated area.

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

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

Aeroport Rehabilitation Piste02

Aeroport Rehabilitation Piste03

Aeroport Rehabilitation Piste04

Aeroport Rehabilitation Piste05

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

20211210 Avenue Gare 3 D 2

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

20211210 Avenue Gare04

29-31 avenue de la Gare

20211210 Avenue Gare05

Building at 29-31 avenue de la Gare

The structure is made of durable XCarb steel produced by ArcelorMittal with a reduced carbon composition.

A durable XCarb steel

The first section, "PC", is a 530 m cycle path and includes an underpass under the railway tracks on the ArcelorMittal site. The "Alley" section includes landscaping on an area of approximately 1.2 ha. The route continues via a cycle and pedestrian path that splits to accommodate ramps for people with reduced mobility and leaves cyclists on a constant slope. In the "Promenade" section, the ramps join up to the centrepiece of the project, the bridge. With a length of 1,200 m and an effective width of 4.5 m, it will rise up to 7.5 m. Plazas with an extra width of up to 8.5 m will be created to provide rest areas. Next, the "Schmeltz" section, with a running section framed by the steelworks and the railway tracks, and then the "Belval" section, which takes cyclists to the Avenue des Sid&eacute;rurgistes and/or the Avenue du Rock'n'roll. Pedestrians will be able to use stairs or lifts to reach the university district.

With a total length of 1.9 km between Esch-Belval and Esch-sur-Alzette, the PC8 is divided into five sections.

Five sections

P C8 Drone 2

The PC8 has the longest bicycle bridge in Europe

This huge scale projet is part of the development of bicyle paths in the Grand Duchy, and is a part of the Veloexpressweg between the capital and the Belval campus.

Félix Giorgetti has built the PC8, a bicycle path between Esch-sur-Alzette and Belval.

Construction by Felix Giorgetti for the Administration des Ponts et Chaussées of the PC8 in Esch-Belval which includes the longest bicycle bridge in Europe.

Construction of a 1.9 km bicycle path between Esch-sur-Alzette and Belval, the centrepiece of which is a 1.2 km footbridge, the longest in Europe.

P C8 15072022 003

Construction of an underpass under the railways.

P C8 Pile

The pillars are made of concrete, tinted in anthracite grey with a wooding print.

P C8 Debut

The PC8 at the beginning of the construction site, during the drilling for the future piles of the structure.

20210630 Cp C8 Personnes

Groundbreaking for PC8 in June 2021 with Paul Giorgetti, François Bausch and Georges Mischo.

P C8 Coup De Pelle

The first sod will be turned in June 2021 by François Bausch, Deputy Prime Minister and Minister for Mobility and Public Works, and Georges Mischo, Mayor of Esch-sur-Alzette.

20221223 Inauguration P C8 5

P+r Mersch Oct22

Construction of a 400-space park and ride, next to the Mersch train station

The structure built for the CFL is 125 m long and 30 m wide and extends over 5 levels. It is composed of a mixed structure with three reinforced concrete cores and a metal framework with collaborative panels. The last level is equipped with a green roof and photovoltaic panels. The fa&ccedil;ade is covered with gold and anthracite expanded metal panels. The station, located a few steps away, will be directly accessible via a tunnel. This turnkey project also includes the construction of a waterproof concrete sprinkler basin and a 2.5 m diameter, 60 m long retention canal in front of the car park entrance for rainwater collection.

In recent years, the town of Mersch has experienced a significant demographic growth. For this reason, the CFL has launched important initiatives in favour of mobility, including the construction of a 400-space park and ride, right next to the train station.

A 400-space P+R in Mersch

Construction of a 400-space park and ride by Félix Giorgetti for the CFL next to the Mersch train station.

Construction of a P+R with 400 places for the CFL next to the station of Mersch to develop the mobility pole of the city.

P+r Mersch 01

Passengers will have direct access between the P+R and the station

P+r Mersch 02

The top floor will be equipped with a green roof and photovoltaic panels

P+r Mersch 03

The façade is covered with gold and anthracite expanded metal panels

P+r Mersch 04

Metal work in the future lift shafts in the park and ride

P+r Mersch Fev22

Construction of the park and ride in Mersch in February 2022.

P+r Mersch Juin21

Construction of the park and ride in Mersch in June 2021

P+r Mersch Nov21

Construction of the park and ride in Mersch in November 2021.

Aeroport Poste Controle04

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

Aeroport Poste Controle01

Aeroport Poste Controle02

Aeroport Poste Controle03

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

Ref Rangwee Ii

Ref Rangwee I I03

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Ref Rangwee I I05

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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

Ref Parc Gasperich02 Fev21

Ref Parc Gasperich03 Juin21

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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

Construction of a 2.000-space park and ride in the Cloche d'Or district by Félix Giorgetti for the Town of Luxembourg and the National Roads Administration.

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

Cloche d’Or P+R

Pr Cloche or 02

Construction of a P+R with 2,000 spaces in the Cloche d'Or district.

Pr Cloche or 03

Pr Cloche or 05

Pr Cloche or 3 D3

Pr Cloche or 08

Pr Cloche or 09

P+r Cloche D'or Oct22

The Cloche d'Or park and ride in October 2022.

CFL commissioned F&eacute;lix Giorgetti to carry out the modernization of its Maintenance and Storage Centre and the construction of a new seven-track harness.
To this end F&eacute;lix Giorgetti called upon its expertise in civil and technical engineering in order to do the following: platform work, the reinforcement of the Albert Bousser tunnel (which leads to the Bonnevoie bypass), foundations of the catenaries, an inspection pit, the relocation of existing networks and installation of a new sanitation system.
Our teams are also involved in the electrical supply of small driving forces, electrical equipment, the grounding network for site equipment, wastewater pumping installation and the compressed air distribution network.

Crm 07

Luxembourg - Train station

Felix Giorgetti has been working on this major project to increase CFL&rsquo;s storage and maintenance capacity since early 2020. It has involved work on platforms and networks, using special techniques, at the CFL Maintenance and Storage Centre between the B&uuml;chler bridge and the Rangwee tunnel.&nbsp;&nbsp;
In order to better manage the increasing numbers of people travelling daily to Luxembourg City due to the growing number of cross-border workers, CFL launched a project to expand the central station in 2018. Two new platforms and four additional tracks were to be constructed, bringing the total number of tracks to 14.

Enhance CFL maintenance capacities

Maintenance and Storage Centre

Crm 01

Crm 02

Crm 03

Crm 04

Crm 05

Crm 06

As for the construction itself, the main building as well as the offices are composed of a metallic frame with floors in collaborative steel tanks, the external elevations are in reinforced concrete poured on site and in premurs in the interior. For the offices, the concrete slab is smoothed and left rough.
The seven-storey, 40m high hotel is made of prefabricated sandwich panels measuring 8.10 x 3.05m and weighing up to 12 tons for the heaviest. These are concrete walls that include both insulation and finishing. These structural elements save a lot of time.
<h3>The spiral ramp, a real technical challenge</h3>
This is the most spectacular element of the project: the spiral ramp. &nbsp;With a diameter of 25.5m and a height of 37.5m, the structure is impressive.&nbsp;
The two-way structure serves to distribute the eight parking levels of the park house as well as level -1.
700m&sup3; of concrete were needed to build the 24cm thick reinforced concrete walls. &nbsp;The rounded structure, made of reinforced concrete cast in place, requires special formwork using Sateco CTR formwork to achieve the curvature. It also includes over 57 tons of reinforcement.
Once the elevations were completed, the steel frame was installed, as well as the steel decking, and finally the concrete was poured for the slab to form a ramp with a 6.6% slope. &nbsp;

The scale of the site is such that it has been divided into four zones. In total, up to 85 people, workers and supervisors, work in this huge hive where the complex is gradually emerging from the ground.

4 working zones

Kuhn Construction

Realised with

Gridx Vue Devant

GRIDX Activity Centre

Wickrange, a municipality in the southwest of Luxembourg, is located at the crossroads of major roads, slightly outside the capital and a few minutes from the Belgian, French and German borders.
The X-Center is only 2 hours away from major cities such as Strasbourg, Aachen or Brussels and 3 hours away from metropolises such as Paris or Lille.

A strategic place

A few minutes from the capital and close to the borders, on the route des Trois Cantons, that Felix Giorgetti realizes a new mixed activity center, in partnership with Kuhn Construction. A project of more than 90,000m&sup2; gross built on a site of 3.3ha. It is a complex composed of a commercial area and a future housing estate developed and built by F&eacute;lix Giorgetti.
The start was given in January 2020, when the intense and vast task of earthworks began, with some 260,000m&sup3; of excavated material being removed. The excavators and dumpers then gave way to concrete mixers, formwork panels and, above all, 9 Skyliners: six tower cranes, two mobile cranes and one crawler crane.&nbsp;
This new center has been designed as a new pole of attractiveness and brings together many activities:
<ul>
<li>Artisanal and commercial &thinsp;;</li>
<li>Desks &nbsp;;</li>
<li>Hotel ;</li>
<li>A large capacity park house.</li>
</ul>

In Wickrange, route des Trois Cantons, Félix Giorgetti is building a large-scale project in partnership with Kuhn Construction. A mixed-use project of approximately 90,000 m² which extends over more than 3 ha.

GRIDX Activity Centre in Wickrange

In Wickrange, route des Trois Cantons, Félix Giorgetti is building a mixed-use project of approximately 90,000 m² which extends over more than 3 ha.

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