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China Communications Construction Company Limited (“CCCC”) provides integration services including design, construction, operation, equipment manufacturing, real estate, integrated urban development and investment. Its substantial business is across more than 140 countries and regions. CCCC has expertise in building all types of tunnel.
Recently, as the main contractor CCCC has designed and built the Island and Tunnel Project of Hong Kong-Zhuhai-Macao link, the total length of which is 7440.546m. The immersed tunnel has a maximum water depth of 44m and the maximum thickness of sediment cover of 22 m. A series of world-class difficulties have been innovatively solved during the design and construction, such as the semi-rigid tunnel element for increasing structural robustness, production of 76000t plane curved tunnel element by factory prefabrication, installation of 33 tunnel elements in severe marine environment and in narrow channel, and the closure joint construction new method namely the deployable element to reduce the overall project risk.
Further, CCCC possesses comprehensive qualities and professional competency in tunnel engineering, equipped with core technology of designing and manufacturing large-diameter shield machine by Tianhe Mechanical Equipment Manufacturing Co., Ltd (CCCTH), featured in Nanjing Weisan Road Cross-River Passage Project.
CCCC was ranked 3rd on the Engineering News Records ’ list of the world’s Top 225 international contractors and 103rd on the Fortune Global 500.
Mapei UTT is a the fast growing and innovative technology division of Mapei Group dedicated to underground works with a passion to offer continuous improvement to underground industry moreover in terms of respect for the environment in compliance with the most severe standards.
Mapei UTT has a broad underground offering:
Admixtures for all types of concrete, injection systems for different types of rock, soil or concrete structures, spray applied and PVC-Pwaterproofing membranes with a full range of complementary products, all needed chemicals for TBM technology covering hard rock, open face, slurry and EPB type machines,protective and decorative coating systems, chemical treatments for soil stabilization and maintenance of pavements.
Mapei UTT stands out on the market for the highly trained on- site technical support with a worldwide network of highly trained and professional Technical assistants present from more than 20 years.
The Numbers of Mapei
over 25.000 tons of products delivered per day
currently employs over 9000 highly specialized professionals.
Mapei operates globally with 73 plants in 54 countries worldwide
Visit our website and discover more: http://utt.mapei.com
DSI Underground - Global leadership for products and systems for the Tunneling industry
DYWIDAG-Systems International (DSI) is a global market leader in the development, production, supply, and installation of rock reinforcement and round support systems for the tunneling industry worldwide.
Thanks to its comprehensive product range and versatile system solutions, DSI Underground is among the world's leading system suppliers and is represented in all of the markets for challenging tunneling projects.
The product range includes a wide variety of anchors, steel ribs, lattice girders, liner plates, rock and ground support systems as well as field-proven AT systems such as the AT Casing System for the economic installation of tube spiles.
DSI's business philosophy is based on the establishment and cultivation of a trustworthy business relationship with its clients. Irrespective of the circumstances, we are committed to always satisfying the demands of our customers in accordance
with our slogan "Local Presence - Global Competence".
Herrenknecht is a technology and market leader in the area of mechanized tunnelling systems. As the only company worldwide, Herrenknecht delivers cutting-edge tunnel boring machines for all ground conditions and in all diameters – ranging from 0.10 to 19 meters. The Herrenknecht product range includes tailor-made machines for transport tunnels (Traffic Tunnelling) and supply and disposal tunnels (Utility Tunnelling). Under the umbrella of the Herrenknecht Group, a team of innovative specialists has formed to provide integrated solutions around tunnel construction with project-specific equipment and service packages upon request: these include separation plants, conveyor belt systems, navigation systems, rolling stock systems and segment moulds right up to turnkey lining segment production plants. The range of products also includes services in the area of technical consultancy, planning and supervision for tunnelling projects as well as personnel solutions to complement construction site crews on a temporary basis. Herrenknecht develops innovative technical solutions to sink vertical shafts down to great depths as well as to successfully excavate sloping shafts. The company also produces state-of-the-art deep drilling rigs that drill down to depths of 8,000 meters.
Bekaert Maccaferri Underground Solutions, your global partner for smart fibre reinforcement of your tunnelling and mining project.
Our wide range of fibres give you the support your project needs. Depending on the application, we have the right fibre for you at the right price. Our Dramix® 3D fibres are at their best in shotcrete applications for first lining and temporary support. The Dramix® 4D product range is ideal for final lining of tunnels or shafts, either to be used in spray concrete linings or precast segments. Dramix® 5D offers superior results in final lining cast in-situ. Synmix® fibres are macro-synthetic fibres and can be used for temporary support in mining.
To complete our portfolio, we also offer micro-synthetic fibres called Duomix® M6 Fire that increase the fire resistance of concrete.
Some of our important reference projects, all with SFRC precast segmental linings, on the Arabian Peninsula include:
Bekaert Maccaferri Underground Solutions understands you. Because we are tunnelling.
Normet is a fast growing and innovative technology company with a passion to offer continuous improvement to underground construction and mining processes for increased safety, productivity and profitability.
Normet has a broad underground offering:
At BASF we care about the success of our customers. Our global network of experienced underground construction experts, combined with strong local presence makes us the reliable partner for the tunnelling industry. Our product offering is designed to provide a single source for all our customers’ construction material needs, including sprayed concrete, TBM solutions, waterproofing, ground consolidation and injection. Combined with our globally connected team our products assist our customers in selecting the right solutions, providing the complete, most cost-effective solutions based on innovation and technology, allowing them to operate successfully and to the highest safety standards. Not only do we provide reliable solutions that are focused on the needs of tunneling and mining engineers, owners and contractors, but these solutions are backed up by a strong logistic operation. This was proven on the Doha Metro, where BASF supplied critical materials to 17 of the 21 TBMs enabling a world record for the greatest number of TBMs operational simultaneously on a single project.
Since 1995,RITCO (Royal Industrial Tech Corp) acts as a General Contractor to provide advanced technological solutions in the field of infrastructure development.
Apart from the civil construction services, we are also one of the few companies with exceptional design and installation capabilities competent in providing a comprehensive package for MEP works (Electrical Mechanical and Plumbing) and subsequent O&M services (Operation & Maintenance).
During more than 20 years of its business operations, RITCO has successfully implemented more than 2000 domestic and overseas projects of all scales for both private and public sectors. The accumulation of know-how, experience and technological expertise made it possible for RITCO, the dominant infrastructure development contractor in Korea, to export its technology and know-how to UAE, KSA, Qatar, and China.
RITCO's policy is to assure that the quality of its services and products meets all contract specifications and requirements. All our divisions have achieved ISO 9001 for Quality Management Certification and ISO 14001 Environmental Management Certification.
RITCO is committed to satisfy our Clients’ requirements in terms of time and quality by delivering solutions, which integrate the entire value chain of a project.
Sika is a specialty chemicals company with a leading position in the development and production of systems and products for bonding, sealing, damping, reinforcing and protecting in the building sector and automotive industry. Sika has subsidiaries in 97 countries around the world and manufactures in over 190 factories. Its more than 17,000 employees generated annual sales of CHF 5.75 billion in 2016.
Sika offers a full range of construction chemicals for concrete in tunneling and mining, including admixtures, sprayed concrete equipment and waterproofing systems for conventional and mechanized tunnel excavation.
SIKA CONCRETE SOLUTIONS
Sika develops specific concrete admixture solutions for underground construction:
- Shotcrete with highest early strength (Sika® Sigunit®) and efficient application as wet or dry spraying process
- Lining concrete with high durability characteristics (Sika® ViscoCrete®) and high placing properties
Depending on the project requirements, special additives can be added to improve workability time
(Sika ViscoFlow®) or high early strength for early demoulding (SikaRapid®), stabilizer for better workability
(Sika® Stabilizer) or SCC, durability improver (SikaControl®) for all type of requirements. In the same time Sika is working on concrete construction methods for the future for new construction and rehabilitation as Sika 3D Printing or process-independent air entrainer.
SIKA WATERPROOFING SOLUTIONS
Sika provides a full range of waterproofing solutions for all types of below ground structures such as tunnels, caverns or station boxes: high flexible membranes, high resistant liquid applied membranes, various joint waterproofing systems, waterproofing mortars, special coatings and injection materials for remedial works if leaks occurs. This full range allows specifiers, owners and contractors to select the appropriate solution considering project specific conditions and needs. All Sika waterproofing systems are designed to meet owners’ requirements regarding technical functionality, durability, application and total cost of ownership. Because life cycle management and sustainability becomes more important, Sika's well established system solutions are tested according to various leading international standards in the tunnel industry and sika's internal testing methods to prove their high durability even in harsh conditions.
With more than 65 years of experience and expertise, The Robbins Company is the world’s foremost developer and manufacturer of advanced, underground construction machinery. Each piece of equipment, from our TBMs to our cutters to our SBUs and everything in between, is engineered for maximum durability and premium performance, ensuring the successful completion of even the most difficult underground construction projects. Robbins is a total supply company, offering everything from cutters and conveyors to knowledgeable personnel and technical support.
Have a challenging project? Robbins offers the ideal machine for mixed ground conditions that might otherwise require multiple tunneling machines. Robbins supplies three types of Crossover machines: the XRE (Crossover between Rock/EPB), the XSE (Crossover between Slurry/EPB), and the XRS (Crossover between Rock/Slurry). The Gerede Water Transmission Tunnel in Turkey is arguably one of the most difficult projects attempted in the world of tunneling – a Robbins Crossover XRE was launched in 2016. Visit www.TheRobbinsCompany.com for more details.
Epiroc is a leading productivity partner for the mining, infrastructure and natural resources industries. With cutting-edge technology, Epiroc develops and produces innovative drill rigs, rock excavation and construction equipment, and provides world-class service and consumables. No matter what your challenge is: a small tunnel or a large tunnel, a hydroelectric plant or a subway line, a utility tunnel for heating pipes or for any other purpose. We are specialists in underground tunnels! And we have all the equipment you need for a complete tunneling cycle.
Epiroc was founded in Stockholm, Sweden, and has passionate people supporting and collaborating with customers in more than 150 countries. Learn more at www.epiroc.com.
ArcelorMittal Fibres, part of the ArcelorMittal Group – the largest steel company in the world, is a global leader in providing reinforced concrete solutions.
From our three state-of-the-art production facilities in the UK, Luxembourg and Poland, we develop, manufacture and supply premium quality steel fibres to construction markets around the world.
ArcelorMittal Fibres do much more than manufacture and supply a comprehensive range of premium quality steel fibres. We support you with the right advice, the right fibres and the right solutions to ensure the success of your project from start to finish
We offer expertise on:
ArcelorMittal Fibres is working with Engineers, Construction companies and suppliers of Precast and Ready-mix products on some of the most challenging tunnelling projects in the world.
Some of the projects we have been involved in through partnership with our customers are:
ArcelorMittal Fibres operates internationally. We are providing steel fibre reinforced concrete solutions for the tunnelling industry and participating in some of the world's major infrastructure projects.
Let's talk TUNNELS
Sandvik offer drill rigs specially design to suit customers tunneling applications, and to maximize their productivity. They come equipped with high-performance hydraulic rock drills, ergonomic controls, and various levels of automatic drilling systems, making them highly productive, extremely reliable, and economical machines.
As a part of the product area Underground drilling our tunneling equipment offers a full range of:
Tunneling drill rigs - Face drill from mid to large scale tunneling
Rock support drills - Advanced Mechanized bolting drill rigs.
For the overall underground drilling offering we have a full program covering, development drills, longhole TH/ITH drill rigs and secondary breaking rigs.
CBE Group is a French industrial mid-cap company specialized in the engineering and the manufacturing of steel moulds, precast factories and equipment to manufacture concrete segments for all sorts of tunnels. The company masters every step of the process: from the conception in the Design Office to the launch of the plant. Located in the Loire Valley region, its main offices are in Saint-Avertin (37), with two production sites in l’Ile Bouchard, France and in Yangling, China. 290 employees currently work for the company. CBE Group has been involved in more than 500 international projects since its creation in 1987.
ACCIONA is a leading supplier of sustainable infrastructure solutions and renewable energy projects worldwide. Its range of services covers the entire design, construction, operation and maintenance value chain. It has a presence in more than 40 countries and carries out its activities within a commitment to contribute to the economic and social development of the communities where it operates.
ACCIONA Infrastructure is one of the world's leading companies in the development and management of sustainable solutions in construction, concessions, water, services and industrial. It has the capacity to use the most advanced technologies in its activities, selectively incorporating the most appropriate technology for each project and each customer.
ACCIONA Construction is one of the most global companies in the field of civil engineering and special structures. Its business units carry out projects within three areas of specialization: Bridges, Roads and Special Structures; Railways and Tunnels; and Ports and Hydro Projects. This specialization combined with its global vision enables it to deliver the best solutions adapted to each project’s specific needs.