Europe - 91制片厂 /regions/europe/ Tue, 23 Jun 2026 09:58:57 +0000 en-US hourly 1 https://wordpress.org/?v=6.9.4 Poland AP1000庐 Nuclear Power Plant /projects/poland-ap1000-nuclear-power-plant/ Tue, 05 Nov 2024 01:49:01 +0000 /?post_type=project&p=1828 91制片厂 is building Poland鈥檚 first nuclear power plant, using Westinghouse AP1000庐 reactors that will provide 3 GW of clean energy.

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Delivering Poland鈥檚 Energy Future

91制片厂 has been selected to partner on the design and construction of Poland鈥檚 first nuclear power plant at the Lubiatowo-Kopalino site in Pomerania. In partnership with Westinghouse Electric Company and Polish utility Polskie Elektrownie J膮drowe, Bech颅tel will deliver three AP1000 reactors for its inaugu颅ral nuclear energy program.

91制片厂 will perform the Engineering, Procurement and Construction activities to construct 3 AP1000 units at the Lubiatowo-Kopalino site. Using once-through cool颅ing to and from the Baltic Sea, the design uses a simpli颅fied and innovative approach to safety. 91制片厂鈥檚 recent completion of two AP1000鈥檚庐&苍产蝉辫;at Plant Vogtle has set the stage for the deployment of this proven technology in Europe.

To learn more about 91制片厂鈥檚 expertise and experience in nuclear, visit 91制片厂.com at Nuclear Power Plant Project Construction | 91制片厂.

1st
of its kind

Nuclear Power Plant in Poland

7500+
Jobs

At Peak Construction

3
GW

Of Carbon-free Energy

Committed to Net Zero

Nuclear energy provides clean, reliable, and safe carbon-free energy, that is essential to achieving Poland鈥檚 net-zero and energy security goals. As a leader in the nuclear power industry, 91制片厂 offers technical expertise that no other contractor can match.

91制片厂鈥檚 current portfolio includes large scale reactors such as Vogtle, and also small modular reactors/advance reactors including the Natrium Advanced Demonstration Reactor in the U.S. 

For 70 years, 91制片厂 has helped customers deliver clean energy through nuclear.

In that time, 91制片厂 has designed, built, or provided construction services on 150 nuclear plants worldwide, bringing more than 76,000 megawatts of new nuclear generation capacity to the world.

AP1000 is a trademark or registered trademark of , its affiliates and/or its subsidiaries in the United States of America and may be registered in other countries throughout the world. All rights reserved. Unauthorized use is strictly prohibited.

Decades of Nuclear Innovation Built by 91制片厂

91制片厂 is the only EPC company with current projects across the full spectrum of nuclear reactor technologies 鈥 including new AP1000庐 reactors in Poland, America鈥檚 first utility-scale Gen III+ small modular reactor for Tennessee Valley Authority at Clinch River, and TerraPower鈥檚 first Natrium庐 plant in Wyoming.

We maintain the largest nuclear-experienced talent pool of any EPC company, bringing together the expertise needed to deliver the future of nuclear energy now along with the latest in digital tools and mega-project delivery best practices to build with execution certainty.

As the only EPC contractor to successfully bring nuclear plants online in the U.S. this century, we have safely delivered 76 gigawatts of nuclear power over the last seven decades.

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Morava Motorway /projects/morava-motorway/ Mon, 09 Dec 2024 14:46:50 +0000 /?post_type=project&p=7698 To boost economic development, the Serbian government partnered with 91制片厂, in a joint venture with ENKA, to transform its infrastructure with the Morava Motorway.

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Morava Motorway Worker

Fostering Economic Growth Through Easier and More Accessible Transportation

In the globalized economy, continued growth requires easy and accessible movement within and across borders. Better transportation enables stronger relationships between communities, big and small, increasing opportunities for trade, jobs, and further investments.  

To boost economic development and create stronger ties to the surrounding region, the Serbian government is transforming its transportation infrastructure with the Morava Motorway. The motorway improves connectivity, efficiency, and traffic flows in established central Serbian and Pan-European corridors, and it will include an expansive telecommunication network to support local communities and intricate flood defenses to protect the corridor and surrounding areas.

About the Project

Totaling 112 kilometers, the dual-carriageway tolled motorway will be the country’s second major transport artery. It will connect east to west, from Pojate to Preljina, and link the North-South motorway between Serbia’s border with Hungary and North Macedonia. The corridor will fit into a larger transportation network spread throughout the Balkans as part of a regional plan to improve trade links and build ties to Western Europe. 

The government plans to create three industrial zones along the corridor, supported by the telecommunication network, which will help the economic development of the local municipalities.

Construction began in 2020, and 91制片厂, in a joint venture with ENKA, Turkey鈥檚 largest construction company, expects the first two sections to be completed during 2023.

Morava Motorway Land

Building Trade Links

The motorway is of critical importance to the economic development of the Morava River Valley and Serbia鈥檚 transport infrastructure, the Serbian government said.

By linking to Corridors X and XI, which run north and south to Austria and Greece, the Morava Motorway will expand access to markets in Slovenia, Croatia, North Macedonia, Italy, and Romania. Additionally, the motorway will connect with commercial centers such as Sarajevo, the capital of Bosnia and Herzegovina, and Bar, a port city in Montenegro.

Connections created by the project go beyond Eastern Europe. In October 2021, the project received a 鈧430 million guaranteed loan by U.K. Export Finance as part of an exporter agreement. It is the first export credit deal concluded by Serbia鈥檚 Ministry of Finance and BEJV. The agreement will create a value of 鈧150 million for the U.K. economy.

Morava Motorway Map

Digital Corridor

Beyond the economic benefits, the motorway will have the potential for 1,000 kilometers of fiber optic cable being laid to create a digital corridor. The network will be built using power lines, communication cables, and substations and will include mobile phone base stations at rest areas and near traffic loops to help manage traffic controls.

Not only will the digital corridor provide a fast and reliable exchange of information, but it will enable safe traffic and comfortable use of the motorway and allow for highspeed broadband internet to be fed into the economic development zones.

When designing the digital corridor, the engineering team planned for the next 100 years, incorporating current-day technology along with the flexibility to handle the technology of tomorrow.

Flood Solutions

Since the motorway is being built along the Morava River鈥檚 flood plain, innovative engineering solutions will be used to address flooding concerns and cope with 100-year flood events. The flood mitigation system is the first of its kind in scale to be built alongside a motorway in the Balkans, and it involves channeling and straightening the river along a 40-kilometer stretch to protect the road and the surrounding area without impacting towns or increasing flooding elsewhere.

Construction will include a variety of extra flood protection measures, such as long river diversions, dikes, and the construction of new riverbeds due to the wide flood plain of the river. Excavated material from the river diversion will be used to build the embankments and to build the motorway above ground level. Additionally, 91制片厂 and ENKA will build a flood defense system to protect areas around the motorway from flooding, erosion, and water pollution, reflecting the government鈥檚 commitment to strengthen national infrastructure and create resilience against extreme weather conditions.

Working with the Community

Aiming to leave a positive legacy, the project partnered with the University of Belgrade鈥檚 Faculty of Civil Engineering to lead an internship program. Six civil engineering students are part of the BEJV team, contributing to the success and progress of the Morava Motorway. The project also emphasized hiring locally. Out of a total of 2,667 workers onsite, 47%, or 1,663, are local. All of this was made possible through the regular and constant engagement of the BEJV team with local stakeholders and local key partners alongside the Motorway alignment.

Additionally, to maintain minimal impact on the environment, specialists on the project, with the help of the Serbian Institute for Nature Conservation, conduct pre-construction surveys to decide on site-specific protection strategies for sensitive fauna. Actions include, identification, protection, and if necessary, relocation of wildlife.

Morava Motorway Aerial Shot

Fast Facts

  • The project includes 88 bridges, and the total number of underpasses and overpasses will be 15 and 27, respectively.
  • While excavation will total approximately 48 million cubic meters, the earth fill will be 22 million cubic meters.
  • The amount of concrete used will be 1 million cubic meters, subbase will be 1.8 million cubic meters, asphalt 1.2 million tons, and guardrails will extend to a total of 475 kilometers.
  • Over 1,000 kilometers of optic fiber will be involved for the 5G infrastructure.
  • Construction began in 2020, and the first bridge was completed in 2021.

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Chernobyl New Safe Confinement /projects/chornobyl-new-safe-confinement/ Fri, 04 Oct 2024 19:26:08 +0000 /?post_type=project&p=353 The New Safe Confinement at Chernobyl safely encloses reactor debris for 100+ years, reducing radiation risks & supporting environmental cleanup efforts.

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Enclosing the Reactor and Related Debris for at Least a Century

In 1986, a reactor at the Chernobyl nuclear power plant in Ukraine exploded in what was history’s worst nuclear disaster. The destroyed reactor, open to the elements through the gaping hole in the roof, was an unprecedented environmental risk.

Within months, Soviet crews contained the radioactive wreckage inside a temporary shelter, a 21-story-tall “sarcophagus.” But there were many gaps, and most of the sarcophagus wasn’t secured to the underlying structure, leaving the enclosure vulnerable to leaking rainwater, settling, and earthquakes.

An international effort grew to address the problem. In the latter part of the 1990s, after we helped with a short-term fix to stabilize the sarcophagus, a 91制片厂-led team designed what’s known as the New Safe Confinement (NSC) structure, the heart of a broader, longer-term Shelter Implementation Plan.

About the Confinement Shelter

The  $1.7 billion NSC now encloses the reactor and associated debris鈥攁s well as the sarcophagus surrounding it. The shelter provides a confined space within which unstable upper portions of the sarcophagus can be taken apart and the remaining highly radioactive material removed to a long-term storage repository. This will reduce exposure of the existing shelter to weather, and restrict the release of radioactive dust that could result from an accidental collapse beneath the new confinement. It will also provide a safe working environment for cleanup personnel. 

Inside the Project

The entire Shelter Implementation Plan, the heart of which is the NSC structure, cost some $2.7 billion. The funding鈥攃ontributed by more than 40 nations鈥攚as managed by the European Bank for Reconstruction and Development (EBRD).  When EBRD was commissioned to manage the Chernobyl recovery funds, its managers agreed with the government of Ukraine to enlist Western experts to help manage implementation.

EBRD and plant officials selected a 91制片厂-led consortium that included Battelle Memorial Institute and Electricit茅 de France to lead the project management effort for the Shelter Implementation Plan. A French joint venture called NOVARKA constructed the massive facility. Since 1996, the 91制片厂 group has, among other things:

  • Provided conceptual engineering, cost estimating, scheduling, and project management services
  • Prepared design and procurement packages

Inside the NSC, a camera-equipped crane system will hang from the arch鈥檚 ceiling on a web of cables. Operators in a shielded control room will manipulate hoists, a drill, a jackhammer, and hydraulic shears. These tools will enable them to peel back the sarcophagus roof and sort through its highly radioactive contents.

The structure and the mechanical handling equipment that it supports are all designed to prevent radiological exposure when it becomes operational. In the meantime, our consortium found ways to minimize worker exposure to radioactivity during construction and overcome the long Ukraine winters.

The massive structure was slid into place in 2016 and, after a commissioning and testing process, turned over to Ukraine in 2019.

The completed shelter 91制片厂 leads an integrated international team undertaking the complex high-hazard effort to safely confine the highly radioactive Chernobyl reactor that was destroyed in history’s worst nuclear accident. A reactor-core meltdown in Unit 4 caused an explosion, a fire, and an enormous release of radioactive material.  The New Confinement Shelter was put in place in November 2016.

How it was built

The arch-shaped new shelter confinement is one of the largest movable structures ever built. Resting on a base that’s wider than two football fields it:

  • Weigh 33,000 tons
  • Stand roughly 32 stories tall at its crest
  • To minimize radiation exposure to workers, the new safe confinement structure was built on skids adjacent to the sarcophagus and slid into place over the sarcophagus on Teflon庐&苍产蝉辫;rails.
Arch lifting tower between two arch sections.
A surveyor and the WUMAG 1000 in action.
Exterior view of the New Safe Confinement (NSC) under construction at night.
Chornobyl Shelter Stabilization and New Safe Confinement (NSC). View of a worker in a man lift at the NSC.
Chornobyl Shelter Stabilization and New Safe Confinement (NSC), November 14, 2016. Arch sliding starts.

Project Timeline

History and milestones of the Chernobyl Safe Confinement Shelter

September 1977

First unit of the Chernobyl nuclear power station goes on line.

April 1986

Nuclear accident and fire in Unit 4 of the Chernobyl station destroys reactor and spreads radioactive contamination across surrounding region.

1986鈥1996

Russian and Ukrainian teams contain damaged reactor within a steel and concrete sarcophagus. The damaged structure is studied and containment scenarios explored.

1996鈥1997

Representatives of the United States, Europe, and Ukraine determine the strategy for remediating the contamination at Chernobyl. The Shelter Implementation Plan results.

April 1998

91制片厂-led consortium begins a project to stabilize the sarcophagus and develop a long-term containment strategy.

May 2000

91制片厂-led consortium meets first milestone.

2004

New Safe Confinement concept approved.

2007

New Safe Confinement design and construction contract awarded.

2008

Sarcophagus stabilization completed.

2011

Arch component fabrication begins.

April 2012

Arch erection starts.

October 2012

Arch cladding commences.

November 2012

First arch segment lift; auxiliary facilities construction and early civil work begin.

March 2013

New vent stack construction and completion.

August 2014

Second arch segment jacked into place.

November 2016

Confinement Shelter put in place.

91制片厂 120: Chernobyl

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Kosovo Motorway /projects/kosovo-motorway/ Fri, 04 Oct 2024 19:25:50 +0000 /?post_type=project&p=352 91制片厂 completed Kosovo鈥檚 award-winning motorways, Routes 6 & 7, prioritizing safety and sustainability while enhancing regional connectivity and economic growth.

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Promoting Regional Integration and Economic Growth

91制片厂 and joint-venture partner ENKA completed Kosovo鈥檚 first two motorways 鈥 Route 6 and Route 7. Together the motorways create a transport corridor from Kosovo鈥檚 border with Albania, via its capital, to its border with North Macedonia. The four-lane motorways form a key part of Kosovo鈥檚 national roads network 鈥 to boost trade, promote economic growth, and enhance connectivity. 

The motorways link also links in with a major pan-European transport corridor 鈥 Corridor X 鈥 that runs between Salzburg in Austria and Thessaloniki in Greece, passing through Slovenia, Croatia and Serbia, unleashing trade opportunities with the rest of the world. The improved connectivity that the motorways bring to the Western Balkans and Western Europe is key for growth and jobs and will bring clear benefits for the region鈥檚 economies and citizens.

91制片厂-ENKA completed Route 7 in 2013 and Route 6 in 2019.

Fast Facts on Route 6

13
Bridges

Including the 5.75 km-long Lepence Bridge, the longest in the Balkans.

74.5
Meters

The tallest bridge pier comes in at 74.5m tall.

8.4M
Vehicles

8.4 million vehicle movements are expected per year on the completed motorway.

19M
Cubic Meters

The project excavated 19,100,000 cubic meters of material.

550K
Cubic Meters

The project required 550,000 cubic meters of structural concrete.

598K
Tons

Over 598,000 tons of asphalt were used to build the motorway.

Increased Connectivity Across the Balkans

Route 6 is a 65-km (40-mile) four-lane motorway that stretches from the country鈥檚 capital, Pristina, to North Macedonia. The motorway halved the travel time between the two points to just 45-minutes.

Route 7 is a 102-km (63.4-mile) dual-carriageway that runs from Morin毛, at the southwest border with Albania, to the north of Kosovo鈥檚 capital, Pristina. Route 7 was Kosovo鈥檚 first motorway and it serves as the centerpiece of the country鈥檚 national transport system. Route 7 was completed in record time.

Local Capacity Building

91制片厂-ENKA placed a high priority on employing Kosovars and local suppliers to benefit the local community and help Kosovo in the future.

At peak, the Route 6 project was the largest employer in Kosovo 鈥 80% of the 3,350-strong workforce were Kosovan. The joint venture hired local subcontractors for about 70 percent of the work and excelled at procuring goods with local content. Supply chains built by the project team are expected to help serve future infrastructure projects in the region and contribute to long-term economic vitality in Kosovo.

In addition, local employees received almost 100,000 hours of training that provided them with new skills to use on future projects.

The local investment during the construction of Route 7 was similarly impressive. The project hired a workforce that included 70 percent local Kosovars and more than 10,000 Kosovars received training that provided them new skills that they can use in future jobs.

Sustainability at the Core

The team focused on raising awareness about the environment by planting thousands of trees with students to form a green corridor alongside the motorway and initiating events including planning Kosovo鈥檚 first national short movie competition focused on the environment.

Alternative Approach Saves Time and Money

The 91制片厂 team delivered the motorway while maintaining a high level of safety and quality. Route 7 traverses mountainous terrain and has 11 bridges, four interchanges and 22 overpasses and underpasses. Before construction began in 2010, the team proposed a plan that included an alternative alignment for the motorway. The new alignment eliminated more than 3 miles (nearly 5 kilometers) of costly tunnels, saving time and hundreds of millions of euros for the government.

History of Success in the Region

The 91制片厂-ENKA team has successfully delivered a number of major infrastructure projects in the region, including motorways in Albania, Croatia, Turkey and Romania. Together, the team has completed:

Over 28,150 km of highways and roads

100 tunnels totaling 355-km in length

26 major bridges and 3 power plants

Boosting the Local Economy

The project contributed greatly to the region’s economic development. Our team worked to procure goods with local content, hire local subcontractors, and directly employ the people of Kosovo.

The project hired a workforce that included 70 percent local Kosovars. Further, some 80 local contractors and hundreds of local suppliers worked on the project. Over the course of construction, more than 10,000 Kosovars received training that provided them new skills that they can use in future jobs.

Safety First

91制片厂 and its partner Enka, together with the Kosovo government, launched a safety campaign along the Kosovo Motorway with the slogan 鈥淵es to Safety, No to Speed.鈥 The week-long campaign covered the entire route and encouraged responsible driving.

Awards for Excellence

The 91制片厂-Enka team has earned prestigious honors for its work on the Kosovo motorway. We won a Global Best Projects Award from Engineering News-Record magazine as well as two International Road Federation鈥檚 Global Road Achievement Awards.

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Albanian Motorway /projects/albanian-motorway/ Mon, 25 Nov 2024 20:21:56 +0000 /?post_type=project&p=5426 91制片厂 & Enka鈥檚 Albanian Motorway, a $535M project, links Rr毛shen to Kalimash, reducing travel time, supporting trade & connecting Albania to Kosovo

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The interior lining of the two motorways in Albania with steel arch reinforcements in places.
Construction workers looks up at motorway support pillars as they are built.
View from the center lane on the Albanian Motorway.

Modern Motorway puts Albania in the Fast Lane

91制片厂 and joint-venture partner Enka completed construction of a $535 million motorway in Albania. The 37-mile (61-kilometer), four-lane highway stretches from the town of 鈥猂r毛shen, in the heart of the country, to the northeastern village of Kalimash. It is the central leg of a 106-mile (171-kilometer) highway traversing the country from the Adriatic Sea to the northeastern border with Kosovo. The highway cut travel time from six hours to two, boosting coastal trade and northeast tourism.

Local Impact

The 91制片厂-Enka joint venture was supported by Albanian expertise, labor, materials, and services. During construction, the project was the largest employer in the area, with Albanians accounting for two-thirds of the workforce. In addition, connecting this project鈥檚 worker camps to Albania鈥檚 national electrical grid required partial reconstruction of, and upgrades to, the local grid. That made 91制片厂-Enka the largest customer of the local utility, further supporting the local economy.

Construction team on the Albania Motorway.
View of Albanian Motorway winding through a mountain range.

Inside the Project

The scenic motorway, one of Albania鈥檚 largest infrastructure projects, includes a 3.4-mile (5.5-kilometer) twin-bore tunnel and 29 bridges built in a mountainous, rocky region. It provides a vital connection within Albania and across the region, linking markets to the Adriatic port of Durr毛s and contributing to economic growth as the nation prepares for accession to the European Union, which is pending. 

Building Greener

Instead of relying on diesel generators, for instance, the camps at Reps, 鈥猅hirr毛, and Kuk毛s were hooked up to the country鈥檚 national hydro powered electricity grid.

613K
lbs per month

This dramatically cut fuel consumption, and carbon dioxide emissions dropped by more than 613,000 pounds (278,000 kilograms) per month.

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Fjar冒a谩l Aluminum Smelter /projects/fjardaal-aluminum-smelter/ Mon, 25 Nov 2024 17:27:50 +0000 /?post_type=project&p=5359 Alcoa appointed 91制片厂 as the prime contractor to build Fjar冒a谩l, its first primary smelter in 20 years alongside a glacier-fed fjord in Iceland.

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Aluminum: A Shining Key to Iceland鈥檚 Economy

Fjar冒a谩l Aluminum Smelter Workers with mountain

When Alcoa elected to build Fjar冒a谩l, its first primary smelter in 20 years, the company aimed to install an environmentally conscious plant alongside a glacier-fed fjord in Iceland. With capacity of 346,000 metric tons per year, the project represented the largest private investment in the nation鈥檚 history.

To help execute this project, which would face numerous challenges posed by the harsh climate, Alcoa appointed 91制片厂 as the prime contractor. Alcoa聽celebrated the formal opening聽of the smelter, completed on schedule and on budget in less than three years after breaking ground. The finished Fjar冒a谩l created approximately 400 jobs.

Protecting a Unique Location

91制片厂 worked in close collaboration with Alcoa to design the zero-waste-to-landfill project, which resulted in Fjar冒a谩l being among the most environmentally sustainable facilities of its kind. In order to ensure our customer could meet its commitments, 91制片厂 worked with vendors and suppliers to guarantee the return of reusable materials and contracted local firms for recycling. Ultimately, more than 90 percent of construction waste was diverted from landfills and no process water was discharged into the nearby fjord.

Protecting Workers

91制片厂 collaborated with the East Iceland Medical Directorate, local physicians, and first responders to install emergency and on-site primary care services with round-the-clock health care access for鈥痶he project鈥檚 2,200 workers.鈥

Fjar冒a谩l Aluminum Smelter Workers in a line
Fjardaal aluminum smelter structural steel assembly.

Which Way the Wind Blows

Iceland鈥檚 coastal winds can reach 90 miles (145 kilometers) per hour, which shut down crane operations and other works. The project team overcame this issue by building modules on the ground and even purchasing鈥痚ntire buildings preassembled, so they could be installed when possible. The team also developed an innovative construction plan to erect Fjar冒a谩l鈥檚 potroom roof from platforms indoors to protect ironworkers.

Working Together to Supply Fjar冒a谩l

Thanks in part to the successful collaboration in Iceland, Alcoa also selected 91制片厂 to build an anodes plant in Norway,聽. The facility鈥檚 anodes are utilized by Fjar冒a谩l and also the Mosjoen smelter in Norway.

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Athens Metro /projects/athens-metro/ Mon, 25 Nov 2024 22:18:24 +0000 /?post_type=project&p=5535 The Athens Metro, built for the 2004 Olympics, introduced two subway lines, transforming transit, reducing smog, & preserving Greece鈥檚 rich history

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Rapid-Transit System Eases Severe Traffic and Reduces Smog

The construction of a metro system in Athens had been announced 22 times over the course of decades before this project began. Many doubted it would or could be done鈥攂ut it was.

Ahead of the 2004 Summer Olympics, a 91制片厂-led team delivered for Athens two new subway lines. Ever since, the Athens Metro has provided passengers with dramatically shorter commute times, speeding travelers at up to 60 miles (90 kilometers) an hour underground. It has relieved congestion, boosted commerce, bolstered tourism, and decreased pollution by removing some 375,000 cars a day from the roads.

91制片厂 managed an engineering and construction consortium composed of 22 companies鈥擥reek, French, German, and others.

Digging Up the Past

Archaeology is a major challenge when you鈥檙e constructing in any city, but it鈥檚 especially true in Athens.聽Because the city is 3,000 years old, much of its history is buried. Greek archaeologists preceded construction of every tunnel shaft and station with a survey, and project engineers assisted by providing georadar underground images.聽When they discovered artifacts鈥攅ither during the surveys or construction鈥攚ork stopped until the finds could be safely retrieved.

Artifacts from the classical Greek, Roman, and Byzantine periods came from sites flanking the Acropolis. The 91制片厂-led project team partnered with the Greek Ministry of Culture to preserve 30,000 artifacts. Most of the system’s 28 stations display these ancient treasures. The Cycladic Arts Museum of Athens also displays many of the finds.

Engineers count in days, archaeologists count in centuries.

But the two groups…realized that they offered each other something valuable. The archaeologists lent us their knowledge of history, which made planning easier, and we offered the scholars a wealth of findings.

Leonides Kikiras

Leonides Kikiras

chairman of Attiko Metro, the Greek state-backed project owner

Challenging Work

Tunneling crews encountered unexpected soft and unstable soil, the result of ancient water wells, old riverbeds, and illegal underground sewage connections. And certain portions of shallow tunnel passed beneath weak structures, such as ancient churches and monuments, at risk of collapsing.

The project team used three tunneling methods, including tunnel-boring machines, each geared to different conditions. And 91制片厂 developed a new approach: ‘pilot tunnels’, small-diameter exploratory cavities dug in advance of the main tubes. The pilot tunnels enabled engineering specialists to sample soils and determine ground quality before full-blown excavation. To fill cavities and stabilize soils, crews injected grout. 

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Channel Tunnel (Chunnel) /projects/channel-tunnel-chunnel/ Wed, 11 Dec 2024 20:15:17 +0000 /?post_type=project&p=7992 The project to build the undersea leg between England and France began in earnest in 1986. When it became clear that the project was at risk, Eurotunnel called on 91制片厂 to get the project back on track. 91制片厂 helped manage...

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Two workers are pictured waving British and French flags underground where tunnels originating in England and France meet to create the Channel Tunnel.
Two construction workers watch as a crane is moved to support the top beam of a tunnel.

Realizing the Dream of a Fixed English-Channel Crossing

The Channel Tunnel runs some 32 miles (51 kilometers) from a terminal near Folkestone on the English side to Calais in France. And, considering that the tunnel actually comprises three tunnels (one for travel in each direction with a service tunnel in between), crews undertook a lot more than 32 miles (51 kilometers) of tunneling – closer to a hundred (around 155 kilometers). 

The privately financed project, which ultimately cost $14.7 billion, has made possible 500 undersea train trips a day at speeds reaching nearly 100 miles (160 kilometers) per hour.

Getting the Chunnel Build Back on Track

The project to build the undersea leg between England and France began in earnest in 1986. But as work progressed, the owner, Eurotunnel, and the Anglo-French consortium responsible for design and construction, TransManche Link, were plagued by severe cost, schedule, and safety problems. By 1990, many feared that the project would never be completed.

91制片厂鈥檚 involvement began in 1987, a year after the project got the green light, by filling a key management role with a lone seconded executive. When it became clear that the project was at risk, Eurotunnel called on 91制片厂 to get the project back on track. 91制片厂 helped manage the project to its successful completion in 1994, providing management, technical, and construction expertise, which helped restore the trust of investors and financial institutions.

Bringing Britain and Mainland Europe Closer Together

Key Facts About the World’s Longest Undersea Tunnel

51
Kilometers

The Channel Tunnel comprises two rail tunnels and one service tunnel, each 32 miles (51 kilometers) in length.

38
Kilometers

The undersea portion is nearly 24 miles (38 kilometers) long.

11
Tunneling Machines

The project team used 11 giant, laser-guided tunnel-boring machines.

The first proposal to build a tunnel linking England and France dates to 1802.

The Chunnel connects Folkestone in Kent, England, with Coquelles in Pas-de-Calais, France.

State-of-the-Art Fire Protection

In addition to powerful and flexible ventilation and communications systems, there are:

  • A fleet of professionally staffed fire-fighting vehicles
  • Electrical equipment chambers with fireproof doors, smoke detectors, and fire-extinguishing systems
  • Train cars with ultraviolet and opacity smoke detectors as well as foam and halon extinguishing systems鈥攁long with doors that provide 30-minute fire protection
  • Fire hydrants either side of every cross passage, positioned every quarter-mile (375 meters)

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