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As a specialist contractor, VSL - a member of Bouygues Construction, leverages the most advanced construction methods and technologies to engineer, build and preserve complex structures. VSL creates innovative and customised solutions, from initial engineering to project execution, to take up its clients’ challenges. We invite you to discover some of the projects that we have delivered in 2016 and 2017.

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CREATIVE SOLUTIONS TO MEET YOUR CHALLENGES – VSL’S 2017 PORTFOLIO

Discover a selection of VSL's projects delivered in 2017
Road & rail infrastructure
Road & rail infrastructure
Road & rail infrastructure
Road & rail infrastructure
Road & rail infrastructure
Road & rail infrastructure
Angus L. MacDonald bridge, Canada
Angus L. MacDonald bridge, Canada
Angus L. MacDonald bridge, Canada
Angus L. MacDonald bridge, Canada
Angus L. MacDonald bridge, Canada
Ho Chi Minh City Metro Line 1, Vietnam
Ho Chi Minh City Metro Line 1, Vietnam
Ho Chi Minh City Metro Line 1, Vietnam
Ho Chi Minh City Metro Line 1, Vietnam
Si Rat Expressway, Thailand
Tendean-Ciledug Elevated Road, Indonesia
Ironton Russell Bridge, USA
Ironton Russell Bridge, USA
Ironton Russell Bridge, USA
Ironton Russell Bridge, USA
Ironton Russell Bridge, USA
Ironton Russell Bridge, USA
Ironton Russell Bridge, USA
Ironton Russell Bridge, USA
Ironton Russell Bridge, USA
Ironton Russell Bridge, USA
Ironton Russell Bridge, USA
Ironton Russell Bridge, USA
Ironton Russell Bridge, USA
Ironton Russell Bridge, USA
Ironton Russell Bridge, USA
Ironton Russell Bridge, USA

ANGUS L. MACDONALD BRIDGE, CANADA

HO CHI MINH CITY METRO LINE 1, VIETNAM

QUEENSFERRY CROSSING, UNITED KINGDOM

ROUTE CÔTIÈRE WIDENING WORKS, MOROCCO

IKUNO BRIDGE, JAPAN

SI RAT EXPRESSWAY, THAILAND

TENDEAN-CILEDUG ELEVATED ROAD, INDONESIA

IRONTON-RUSSELL BRIDGE, USA

DUBAI WATER CANAL – PACKAGE 3, UAE

SUPERLOOP’S ‘TKO EXPRESS’ SUBMARINE CABLE, HONG KONG

SHATIN TO CENTRAL LINK CONTRACT 1128, HONG KONG

HONG KONG LINK ROAD 03 - BOX JACKING,
HONG KONG

SLAB ON GRADE FOR LUSIMOVEST'S WAREHOUSE, PORTUGAL

HOTEL VP PLAZA ESPAÑA, SPAIN

PASSENGER CLEARANCE BUILDING, HONG KONG

TIANWAN NUCLEAR POWER PLANT, CHINA

CHERNOBYL'S NEW SAFE CONFINEMENT, UKRAINE

WATABAK WIND FARM, THAILAND

BRIDGE OVER THE M2 MOTORWAY, AUSTRALIA

VOUGA BRIDGE, PORTUGAL

BRIDGE OVER THE RIVER TAJO AT ALCANTARA RESERVOIR, SPAIN

WADI LEBAN BRIDGE, KINGDOM OF SAUDI ARABIA

RGT–2 LNG TERMINAL, MALAYSIA

The Big Lift project involves the replacement of the suspended spans of the Angus L. MacDonald Bridge, which has been in service since 1955. VSL took part in this challenging scheme providing heavy lifting services to lower the old deck segments and lift the new ones. The use of a special Tandem Motive Unit made the operations faster and safer.

VSL’s client: American Bridge Canada

VSL has played a key role in one of Vietnam’s first urban metro projects, precasting and erecting segments for a 12.3km elevated viaduct forming part of Ho Chi Minh City Metro Line 1. Construction methods and technical innovations developed on the project were aimed at reducing the impact of the works on local traffic and at improving safety on site.

VSL’s client: Sumitomo Corporation

The 2.7km Queensferry Crossing in Scotland is the world’s longest three-tower cable-stayed bridge and also the world’s largest bridge with stays that cross mid-span. In a joint venture with Drace Infraestructuras UK, VSL installed 288 stay cables using its VSL SSI 2000 system. The use of crossing cables provides stiffness to the structure, allowing the towers and the deck to be slender and elegant. VSL Friction Dampers were also installed on all the cables to enhance the resistance to fatigue while ensuring ease of maintenance during the bridge’s service life.

VSL’s client: Forth Crossing Bridge Constructors: a consortium comprising Hochtief, Dragados, American Bridge International and Morrison Construction

Photo courtesy of Transport Scotland

VSoL® walls with a total area of 5,100m² have been installed for the widening of Rabat’s coastal road. VSL and its joint-venture partner worked with the main contractor to design, precast and assemble wall panels up to 12m high to create space for the expansion of the road.

VSL’s client: Les Grands Travaux Routiers (GTR), a subsidiary of COLAS

The VSL SSI 2000 Stay Cable System, featuring the VSL Saddle, has been installed on the Ikuno Bridge in Japan. The saddle technology is particularly suitable for extradosed bridges and cable-stayed bridges with narrow pylons. It has numerous technical advantages, including proven fatigue performance. In total, 72 cables and 36 saddles have been installed on the bridge under VSL’s specialist supervision.

VSL’s client: Taisei Corporation and PS Mitsubishi Joint Venture

VSL has installed 11,000t of post-tensioning on the Si Rat expressway, a 16.7km, six-lane elevated road, contributing to the extension of a major expressway in Bangkok, Thailand. At peak periods, VSL was providing services to up to 17 gantries operated by the main contractor. The VSL team was also busy on many other active work fronts, including operating a gantry for precast segmental erection and supplying form travellers. Up to 30 work fronts had to be managed simultaneously while keeping up with adjustments to the programme and meeting an accelerated schedule.

VSL’s client: Ch. Karnchang Public Company Limited / Sino-Thai Engineering & Construction Public Company Limited (STECON)

To help ease severe congestion on Jakarta’s road network, the local administration launched the Tendean-Ciledug Elevated Road project (Transjakarta Bus Lane Corridor XIII). VSL worked on four packages forming part of the scheme, including Trunojoyo and Kostrad, which involved the construction of 1,200m and 1,140m, respectively, of viaducts over heavily trafficked areas. VSL built both the structures using launching gantries, but with two different methods – balanced cantilever and span-by-span – to suit the specific needs of each location.

VSL’s client: PT Jaya Konstruksi (Trunojoyo package); Istaka Karya – Agrabudi Karyamarga JO (Kostrad package); PT Adhi Karya (Tendean package); PT Waskita Karya (Adam Malik package)

VSL and its US licensee Structural Technologies have provided a package including post-tensioning, stay cables, heavy lifting and form traveller design and supply for the construction of the Ironton-Russell Bridge across the Ohio River. Technical innovations and optimisation of the installation process enabled time savings in spite of the changing weather conditions and the lack of storage space on the narrow bridge deck.

VSL’s client: Brayman Construction Corporation

The Dubai Water Canal scheme involves the construction of 3.2km of waterway running from the Creek in Old Dubai through Business Bay to the Arabian Gulf. VSL was appointed to carry out specialist ground improvement works as part of Infrastructure Package 3. Deep compaction of the reclamation site was performed by carrying out single and tandem vibro-compaction across an area of 157,950m², in operations that involved more than 10,000 compaction points. Additional shallow and superficial compaction works were completed using the rapid impact compaction technique across the entire reclamation area of 211,500m².

VSL’s client: Belhasa Six Construct LLC (BESIX)

VSL has deployed a trenchless construction technique, horizontal directional drilling (HDD), to install a subsea pipeline for a data cable in a complex geological setting. The flexibility and steerability of the HDD tools makes the technique ideal when facing challenging ground conditions and man-made obstacles. VSL was able to adapt the drilling tools to suit the difficult geology and achieve an on-target punch-out.

VSL’s client: Superloop (Hong Kong) Limited

Contract 1128 of the Shatin to Central Link involves the construction of two twin-tube structures –the Eastern and Western Tunnels – by tunnel boring machine (TBM). VSL was in charge of building three shafts with diaphragm walls, including a two-cell shaft that was needed to launch the TBM for the Western Tunnel excavation. This design is particularly efficient in terms of savings in both time and space; it enhances the structural capacity of the shaft while minimising the need for struts, thus enabling the accommodation of large TBMs.

VSL’s client: Dragages – Bouygues Joint Venture

In 2017, VSL successfully completed the construction of two 70m-long tunnels under the Airport Express Link (AEL) – the railway that connects Hong Kong International Airport to the city centre. The main goal was to carry out the work safely and without disrupting the regular operations of the busy train line. To meet these objectives, VSL developed an innovative package that included ground improvement and box jacking – a technique that had never before been used in Hong Kong.

VSL’s client: China State Construction Engineering (Hong Kong) Ltd.

In January 2017, VSL completed its third – and largest so far – slab on grade project in Portugal, for a new 7,500m² logistics warehouse located near Lisbon. The team worked closely with the client, Grupo TPB – one of the leaders in Portugal’s flooring market – to develop the most appropriate solution for the project and overcome the site’s poor ground conditions. The structure was delivered in just one month.

VSL’s client: Grupo TPB

The 5-star VP Plaza España is a new 22,140m² luxury hotel located in the historic centre of Madrid. It was therefore paramount to ensure fast-track construction in this prime tourist location while respecting the area’s architectural features. As part of the project, VSL was involved in the installation of post-tensioned slabs, transfer slabs and beams. All building activities had to be strictly planned in coordination with the work on the façade in order to achieve construction rates of about four to five floors per month.

VSL’s client: Tilmon

VSL played a crucial role in the construction of Hong Kong’s Passenger Clearance Building (PCB), which features an iconic waved-shaped steel roof weighing more than 21,000t. The building’s proximity of the airport meant that the working height was limited to 38m above Hong Kong’s principal datum and so the roof couldn’t be installed using traditional lifting gantries. VSL worked in close cooperation with the main contractor to develop a sophisticated erection method involving skidding, lifting and lowering operations for the installation of 81 roof segments, representing a surface area of 60,000m².

VSL’s client: Leighton Contractors Asia Limited – Chun Wo (LCW-JV)

VSL has been involved in the construction of two 1,000MW containment units in central-eastern China’s Jiangsu province through the provision of its NC6-55 post-tensioning anchorage system. Each containment structure required 50 vertical tendons and 70 horizontal tendons, representing some 1,280t of strands per unit.

VSL’s client: China Nuclear Power Engineering Co Ltd (CNPE) / China Nuclear Industry Huaxing Construction Co Ltd (HXCC)

In November 2016 – 30 years after the nuclear disaster that destroyed Chernobyl’s Reactor 4 – the New Safe Confinement (NSC) structure was successfully slid into its final position. The huge arch, weighing 36,000t when fully equipped, was designed to enable the safe dismantling of Reactor 4, which was previously enclosed by a makeshift shelter built in 1986. VSL carried out the lifting of the main crane system inside the new shelter – an operation that couldn’t be executed using conventional cranes due to the size and height of the system.

VSL’s client: Novarka – a consortium of Vinci Construction Grands Projets and Bouygues Travaux Publics

Photo courtesy of EBRD

VSL has carried out the construction of the foundations for 30 wind turbine generators as part of the Watabak Wind Farm project in Thailand. VSL coordinated closely with the other subcontractors to help keep the overall project on schedule. In terms of quality, the owner’s goal was for the foundations to be virtually crack-free. To attain the objective, VSL designed a low-heat concrete mix, which was used in conjunction with special curing regimes.

VSL’s client: DEMCO Public Company Limited Co.

VSL has carried out work to lengthen a bridge over the M2 Motorway as part of NorthConnex, the longest tunnel project in Australia. VSL’s scope involved the installation of external post-tensioning and associated works, while meeting the key aim of avoiding traffic disruption on this busy road.

VSL’s client: Lendlease & Bouygues Construction Australia Joint Venture (LLBJV)

A comprehensive technical proposal and extensive experience led to the appointment of VSL as main contractor to carry out repair works on the Vouga Bridge. The scope of works included drain and concrete repairs and the injection of cracks with epoxy resin, as well as joint and bearing replacement.

VSL’s client: Brisa

The 1,448m-long bridge over the River Tajo at Alcantara Reservoir is part of a new high-speed rail line connecting Madrid to the region of Extremadura and ultimately to Lisbon in Portugal. The viaduct consists of 26 spans and includes a 324m concrete arch that crosses high above the river. To enable the installation of the bridge’s new permanent bearings, VSL used its well-proven jacking system to slide the 20,000t deck with a pushing force of 1,000t.

VSL’s client: UTE Copisa-Copasa

The 763m-long Wadi Leban Bridge was completed in 1999. At the time of construction, VSL designed and supplied post-tensioning and stay cables for the iconic structure. After 14 years of service and a severe storm in 2013, VSL was commissioned to inspect the stay cables and subsequently install its friction damping system on each of the 248 stays to prevent excessive cable vibrations. The bridge remained in operation throughout the installation.

VSL’s client: Shibh Al Jazira Contracting Co. (SAJCO)

Successful collaboration on three LNG tanks in Singapore led EPCC contractor Samsung C&T to select VSL again as its partner, this time for work on a new LNG terminal project in Malaysia. The VSL project team was responsible for the construction of the outer containments of two 200,000m³ LNG tanks, including the operation of two sets of formwork, the prefabrication and installation of reinforcement and cast-in mechanical components, the supply and installation of post-tensioning and the placement of concrete.

VSL’s client: Samsung C&T Corporation

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Bringing a building back to life

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Fast-track construction in Vietnam

Journeys to the interior of the earth

LEDs play!

How can a building with significant structural defects be made usable again? VSL has taken up the challenge of rehabilitating the headquarters of Swiss company FORS, providing the client with a turnkey solution under a design & build contract.

VSL takes you on a fascinating journey to show you what is hidden below the surface of our sites and how ground engineering can help turn your projects into reality.

Get ready for a previously unseen and fantastic experience achieved through dimmable LED stay cables designed by VSL. Ready to start? Let’s play!

VSL and its joint venture partners have delivered a 12.3km elevated viaduct as part of Ho Chi Minh City Metro Line 1 – one of the first urban metro projects in Vietnam. Innovation and safety have been at the core of the work, which has involved the prefabrication and installation of more than 4,500 segments.

VSL Website
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Launching gantries, lifting frames, form travellers, precast moulds… Building a bridge requires enormous machines that must be tailor-made to suit the specific needs of each project. At VSL, we have a pool of specialists taking care of our equipment to guarantee the highest quality of service worldwide.

VSL has the in-house expertise to design and …

Conservation, repair, upgrading and strengthening are essential to extend the life of structures.
VSL can assist you throughout the entire lifecycle of your assets – whether these are buildings, industrial facilities, underground structures or bridges – delivering sustainable solutions to preserve their value and ensure the safety of their users. VSL offers specialist services ranging from inspection, monitoring and condition assessment to implementation of preventative measures and major repair and retrofit works.

Across all fields of application, we have identified some recurring issues that can be addressed with appropriate repair and retrofit solutions.

Protecting cable-supported bridges against extreme conditions is a priority for asset owners and operators. Bridges carry major traffic flows and any disruptions have huge impacts on the local economy.

With this in mind, VSL has developed two innovative solutions to protect stay cables from the hazards linked to fire and ice.

Bridge-building equipment - a specialist
expertise

Providing solutions to make
structures last

Making cable-supported
bridges safer

BRIDGE-BUILDING EQUIPMENT –
A SPECIALIST EXPERTISE

PROVIDING SOLUTIONS TO MAKE STRUCTURES LAST

MAKING CABLE-SUPPORTED BRIDGES SAFER

Launching gantries, lifting frames, form travellers, precast moulds… Building a bridge requires enormous machines that must be tailor-made to suit the specific needs of each project. At VSL, we have a pool of specialists taking care of our equipment to guarantee the highest quality of service worldwide.

VSL has the in-house expertise to design and fabricate specialist bridge construction equipment. These enormous machines, such as launching gantries and lifting frames, are almost a complete construction site in themselves. They require dedicated teams with the specialist knowledge to look after them through the whole project cycle.
This is the reason we have set up a centralised hub to manage every stage in the lives of our machines, from design to decommissioning, anywhere in the world. Our pool of experts works closely with the operational teams to ensure that our equipment performs at its best and in the safest conditions.
The objective: to provide our clients with high-quality services, no matter where their projects are, and to guarantee specialist support at all stages of the work: procurement, fabrication, shipping, assembly, commissioning, operation, inspections, maintenance, decommissioning and reuse, before the equipment is eventually scrapped.

THE BUKIT BROWN PROJECT: A SUCCESS STORY

In Singapore, the equipment hub worked closely with the Technical Centre on the design and fabrication of a launching gantry for the Bukit Brown project. The machine, designed in-house, was built by a VSL-approved fabricator in China under the supervision of the equipment hub, which then assisted the site team during assembly and commissioning. The machine was ready at the same time as the precast beams, enabling bridge erection to start as scheduled.

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