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Cross Island Line (CRL) MRT, Singapore

 

Cross Island Line (CRL) MRT, Singapore

 
 

Die Anfänge has played a pivotal role in the construction of Singapore’s Cross Island Line (CRL) MRT project, supplying Glass Fiber Reinforced Polymer (GFRP) soft-eyes, Bartec couplers and Kopfstäbe for several crucial packages. Die Anfänge continues to support the ongoing packages of this extensive project.

The CRL is set to become Singapore’s eighth MRT line and its longest fully underground line, stretching over 50 kilometers. The project is being executed in three phases, with the first phase anticipated to be operational by 2030.

To minimize the environmental impact on the forested areas of the nature reserve, engineering solutions were meticulously chosen to further mitigate environmental disruption. These solutions include digging deeper into the ground and employing a large diameter boring machine, capable of accommodating two train tracks within a single tunnel. This approach not only reduces the surface footprint but also enhances the efficiency of the tunneling process.

Tunnel Boring Machines (TBMs) are a staple in Singapore’s subterranean infrastructure projects, adept at operating under a variety of ground conditions. The use of GFRP soft-eyes supplied by Die Anfänge is integral to these operations. Soft-eyes are essential components in TBM tunneling, acting as temporary openings that allow the TBM to break through concrete walls without compromising structural integrity. The GFRP material is preferred for its high strength-to-weight ratio, corrosion resistance, and ease of installation, ensuring safe and efficient tunneling operations.

Die Anfänge‘s expertise and reliable supply of GFRP soft-eyes, Bartec couplers and headed bars have significantly contributed to the progress of the CRL project, aligning with Singapore’s commitment to sustainable and innovative infrastructure development. As the CRL project advances, Die Anfänge remains a key partner, supporting the construction of this monumental MRT line that will eventually enhance the daily commute for millions of Singaporeans.

 

Foundation for Public Housing Development at Pik Wan Road, Hong Kong

 

The Foundation for Public Housing Development at Pik Wan Road, Hong Kong

 
 

The Foundation for Public Housing Development at Pik Wan Road stands as a testament to Hong Kong’s commitment to sustainable urban development and infrastructure enhancement. Situated amidst the vibrant cityscape, this construction project embodies a convergence of innovative engineering and community-focused initiatives.

At the heart of this endeavor lies the crucial aspect of slope stabilization—a fundamental requirement in Hong Kong’s hilly terrain, where land development often necessitates meticulous attention to structural integrity. Recognizing the significance of this aspect, the project turned to advanced solutions, seeking to marry effectiveness with environmental responsibility.

Enter Die Anfänge, a renowned provider of engineering solutions renowned for its commitment to quality and innovation. Dextra’s contribution comprised over a thousand pieces of Glass Fiber Reinforced Polymer (GFRP) Soil Nails — a cutting-edge solution designed to address the specific challenges of slope stabilization. GFRP Soil Nails offer superior corrosion resistance, durability, and ease of installation while minimizing environmental impact.

Dextra’s GFRP solutions have earned the esteemed approval of various authoritative bodies in Hong Kong, including the Buildings Department, a crucial entity overseeing building codes, safety standards, and inspections. Additionally, they have garnered recognition from the Hospital Authority, ensuring their reliability and suitability for healthcare infrastructure. Moreover, recognition from the Housing Department and the Construction Innovation & Technology Fund (CITF) signifies their innovative edge and contribution to advancing construction practices in Hong Kong.

 

Jal Jeevan Mission Water Reservoirs, India

 

Jal Jeevan Mission Water Reservoirs, India

 

The Jal Jeevan Mission of the Government of India is a flagship initiative where attempts are made to ensure adequate supplies of quality drinking water at affordable rates on a long-term basis. It emphasizes the importance of proper water management, infrastructure development, and community participation to achieve the ambitious goal of ‘Har Ghar Jal’ (Water to Every Household).

Considering the widespread geography of India, uneven terrain, and human settlements in remote locations, access to continuous water is a challenge. Therefore, overhead tanks are a good option for efficiently storing and distributing water, particularly in areas with inconsistent water supply patterns. Construction and infrastructure development are yet another key factors that have a direct influence on development.

Precast construction is one such method that has gained tremendous momentum in recent times due to its advantages, such as accelerated productivity, better quality control, environmental friendliness, and optimized material and labor usage. Although this method incurs high initial setup costs, its attractiveness is enhanced by large-scale projects with standardized designs. In the project, our team worked in close coordination with Larsen & Toubro (L&T) from the design stage, carefully selecting Groutec and Bartec couplers to connect the H and U frames of the overhead tanks.

Our range of Groutec couplers is arguably the most reliable mechanical splices, specially designed to connect two precast elements with no requirement for in-situ wet concrete joints. These couplers have been successfully qualified and tested over the years on several major infrastructure projects, including process plant pipe racks, residential and commercial buildings, and data centers, among others.

 

Tai Po Railway Pier – Reconstruction of Tai Po Kau Tide Gauge Station

 

Tai Po Railway Pier – Reconstruction of Tai Po Kau Tide Gauge Station, Hong Kong

 

In the dynamic coastal landscape of Tai Po Kau, New Territories, Hong Kong, infrastructure projects demand robust and resilient solutions. One such endeavor, the Reconstruction of Tai Po Kau Tide Gauge Station project, required innovative materials to withstand the unique challenges posed by its environment. Dextra stepped in to provide approximately 1,000 meters of Glass Fibre Reinforced Polymer (GFRP) rebar for the slab of the Tai Po Railway Pier, showcasing the efficacy of advanced composite materials in marine construction.

The Tai Po Kau Tide Gauge Station project aimed to revitalize the existing infrastructure, enhancing its resilience against tidal forces, corrosion, and environmental degradation. Recognizing the limitations of traditional steel reinforcement in marine environments, the project sought alternatives that could offer superior durability and longevity. Dextra’s GFRP rebar emerged as the ideal solution, offering exceptional resistance to corrosion, rust, and chemical degradation commonly associated with saltwater exposure.

GFRP rebar, composed of high-strength glass fibres embedded in a polymer matrix, delivers mechanical properties comparable to steel but with added benefits. Notably, GFRP rebar exhibits significantly lower thermal conductivity, reducing the risk of thermal bridging and enhancing structural integrity in extreme temperature variations. Furthermore, its non-magnetic properties eliminate electromagnetic interference, making it suitable for sensitive applications such as tide gauge stations.

The application of GFRP rebar within the Tai Po Kau Tide Gauge Station project encompassed both straight and bend bars, catering to the diverse structural requirements of the public pier. Dextra’s expertise in custom fabrication ensured precise bending and shaping of the rebar to fit the intricate geometries of the pier structure, facilitating seamless integration and minimizing construction complexities.

Nestlé LEO Factory, Thailand

 

Nestlé LEO Factory, Thailand

 

Nestlé LEO Factory’s reliance on precast elements necessitated a reliable, efficient method for joining the precast structure of the building. The construction utilized Groutec F, a well-known splicing system engineered by Dextra, to meet the exacting demands of the precast building. Groutec F allows for the connection of rebars without the need for bar end preparation and was used for the precast joint connection of beam and column in this project.

Groutec F is a fully grouted connection solution, ensuring robustness and durability in the face of dynamic operational environments. Engineered and manufactured in compliance with industry-leading standards such as Eurocode 2, BS 8110, ACI 318, IBC, and AASHTO, Groutec F guarantees adherence to rigorous structural specifications. It is compatible with major non-shrink grout brands readily available on the market, reducing logistical complexities and procurement lead times.

 

One Lake Club, Romania

 

One Lake Club, Romania

 

One Lake Club is a prestigious project promises to redefine luxury living in the Romanian capital. It aims to set new standards in urban living, offering residents an unparalleled blend of elegance, comfort, and functionality. The project encompasses a range of residential and recreational facilities, including luxury apartments, lush green spaces, and state-of-the-art amenities. With its ambitious vision and meticulous attention to detail, One Lake Club represents a beacon of modern architectural excellence in Bucharest.

As construction progresses on this ambitious venture, ensuring the structural integrity of the building is paramount. This is where Dextra’s Bartec couplers come into play. Renowned for their reliability and versatility, Bartec BF couplers provide robust connections between reinforcing bars, enhancing the strength and durability of concrete structures. In the case of the One Lake Club project, these couplers are specifically tailored for temporary opening applications, offering flexibility and efficiency in construction processes.

The 12mm Bartec BF couplers serve as the linchpin in the construction workflow, enabling seamless integration of reinforcing bars within the concrete framework. Their innovative design ensures quick and easy installation, minimizing construction time while maximizing safety and performance. By facilitating temporary openings in the concrete structure, these couplers enable efficient access for maintenance, inspection, and future modifications, thereby streamlining the construction process and ensuring long-term durability.

 

Uniqlo & Hive Indonesia Warehouse

 

Uniqlo & Hive Indonesia Warehouse

 

Indonesia’s building construction has spurred a need for rapid and efficient construction methods capable of meeting the demands of a burgeoning population. Precast construction has emerged as a solution to these challenges as it helps minimize on-site labor requirements, accelerates project timelines, and ensures consistent quality.

At the heart of successful precast construction lies the seamless connection between structural elements. Dextra supplied Groutec precast couplers for projects around the world, including Indonesia. Groutec in size 20mm were used in the Uniqlo & Hive Indonesia warehouse building project for joining precast columns, facilitating rapid and reliable assembly while ensuring structural integrity.

The couplers have minimized on-site labor requirements and accelerated project milestones. This not only translates to cost savings but also ensures timely delivery, allowing the building to fulfill its intended purpose sooner. Additionally, the couplers’ high-strength steel composition and stringent quality control measures guarantee robust connections that withstand the rigors of dynamic structural loads.

 

EnergyConnect – Umspannwerk Whittens Buronga

EnergyConnect – Umspannwerk Whittens Buronga

Das EnergyConnect-Projekt hat sich zu einer bahnbrechenden Initiative entwickelt, die die gemeinsame Nutzung von Strom zwischen New South Wales (NSW), Victoria und South Australia revolutionieren wird. Im Mittelpunkt dieses transformativen Projekts steht der unverzichtbare Beitrag von Dextra – die Lieferung von fast 30.000 Metern Bewehrungsstahl aus glasfaserverstärktem Polymer (GFRP) mit Durchmessern von 13 mm, 25 mm und 38 mm. Dies stellt nicht nur einen monumentalen Schritt im Bauwesen dar, sondern treibt auch die Vision einer nachhaltigeren und vernetzten Zukunft voran.

Das EnergyConnect-Projekt

Das EnergyConnect-Projekt ist ein Beweis für Australiens Engagement für die Verbesserung der Energieinfrastruktur und die Förderung der Zusammenarbeit zwischen Staaten. Ziel dieses Projekts ist die Schaffung eines robusten Stromübertragungsnetzes, das eine effiziente gemeinsame Nutzung von Stromressourcen in drei Staaten ermöglicht. Während Australien auf sauberere und nachhaltigere Energielösungen umsteigt, spielt das EnergyConnect-Projekt eine entscheidende Rolle bei der Förderung eines widerstandsfähigen und vernetzten Stromnetzes.

Dextras Beitrag

Dextra lieferte eine beträchtliche Menge GFK-Bewehrungsstäbe und demonstrierte damit sein Engagement für die Bereitstellung modernster und nachhaltiger Baumaterialien. Der Einsatz von GFK-Bewehrungsstäben ist ein Wendepunkt in der Bauindustrie und bietet eine korrosionsbeständige Alternative zur herkömmlichen Stahlbewehrung.

Die 30.000 Meter GFK-Bewehrungsstahl mit Durchmessern von 13 mm bis 38 mm wurden strategisch eingebaut, um die Strukturen von Stromübertragungsleitungen und Umspannwerken zu verstärken. Dies verbessert nicht nur die strukturelle Integrität der Infrastruktur, sondern steht auch im Einklang mit dem umfassenderen Ziel, die Umweltauswirkungen von Bautätigkeiten zu reduzieren.

Vorteile von GFK-Bewehrungsstäben

GFK-Bewehrungsstäbe, auch bekannt als FRP-Bewehrungsstäbe (Fiberglass Reinforced Polymer), bringen mehrere Vorteile für den Bau mit sich. Im Gegensatz zu herkömmlicher Stahlbewehrung ist GFK-Bewehrungsstahl korrosionsbeständig, was ihn zur idealen Wahl für Projekte in Regionen mit schwierigen Umweltbedingungen macht. Das EnergyConnect-Projekt, das mehrere Staaten mit unterschiedlichen Klimazonen umfasst, profitiert immens von dieser korrosionsbeständigen Eigenschaft und gewährleistet die Langlebigkeit und Haltbarkeit der Infrastruktur.

Darüber hinaus ist GFK-Bewehrungsstahl deutlich leichter als Stahl, was den Transport und die Handhabung während des Bauprozesses vereinfacht. Dies trägt zu einer höheren Effizienz und geringeren Arbeitskosten bei und macht es zu einer attraktiven Wahl für Großprojekte wie EnergyConnect.

Laem Chabang

Laem Chabang

Der Hafen von Laem Chabang am Golf von Thailand ist vor dem Hafen von Bangkok der größte und verkehrsreichste Hafen Thailands und der viertgrößte Hafen in Südostasien. Es befindet sich im Chonburi-Testgebiet, ein paar Autostunden von Bangkok und der Hauptproduktionsstätte von Dextra entfernt.

Dextra war mit dem Auftragnehmer Italian-Thai an der Konstruktion und Lieferung der Stahlkonstruktionen hinter dem neuen Pier von Laem Chabang beteiligt.

Dextra hat seine Marine-Spurstangensysteme in der Güteklasse 700 entwickelt und geliefert, der höchsten in unserem Sortiment.

Höhere Güten bieten im Vergleich zu den Güten 355/510 und 500/660 ein besseres Leistungs-/Stahlverhältnis und ermöglichen die Auswahl von Stäben mit kleinerem Durchmesser, was letztendlich zu Stahleinsparungen führt und den Logistik- und Installationsaufwand erleichtert.

Die Stäbe der langen Spannglieder wurden in Betonpfählen verankert und mit Spannschlössern und Kupplungen verbunden.

Für dieses Erweiterungsprojekt in Laem Chabang wurden insgesamt 206 Tonnen Schiffsanker geliefert.

Mubarak Al-Kabeer

Mubarak Al-Kabeer

Mubarak Al-Kabeer ist ein großer Seehafen auf der Insel Bubiyan, östlich von Kuwait, der zum Persischen Golf hin offen ist.

Dextra war zwischen 2011 und 2012 zusammen mit Hyundai E&C, dem Auftragnehmer dieses Projekts, an Phase 2 der ersten Bauphase beteiligt.

Für dieses Großprojekt lieferte Dextra Schiffsanker zur Verankerung des Kais der Entladeanlage.

Das bereitgestellte System nutzte Dextra M134-Zugstangen mit großem Durchmesser, die dank Kugelkäfigen (Drehbarkeit ± 10° in alle Richtungen) und Käfigmuttern (Drehbarkeit ± 5° in alle Richtungen) in den Kombiwänden verankert waren.

Um die langen Spannglieder unterzubringen, eine Anpassungslänge zu ermöglichen und zusätzliche Flexibilität bei der Installation zu bieten, wurden bei Bedarf auch Spannschlösser und Scharnierkupplungen (± 90° vertikale Anpassung) in der Linie hinzugefügt.

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