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分类： 运输

Central Kowloon Route (CKR) – Central Tunnel, Hong Kong

发表于 通过 Kansuda Visesthanakorn
 

Central Kowloon Route (CKR) – Central Tunnel, Hong Kong

 
 

Dextra played a pivotal role in the construction of the Central Kowloon Route (CKR) – Central Tunnel project in Hong Kong by supplying over 60,000 Fortec+ couplers. These mechanical rebar couplers were integral in ensuring strong and reliable connections within the road tunnel structure, meeting the stringent requirements for safety and durability.

The CKR, a major infrastructure project aimed at improving traffic flow across Kowloon, required advanced construction techniques, and Dextra’s Fortec+ couplers contributed significantly to the project’s structural integrity and long-term performance. The couplers were used to connect rebars in various locations, such as precast panels, tunnel access points, and driveways.

Fortec+ is a system that includes an additional rebar preparation process, in which the threaded bar end is proof tested by applying a tensile load. This is a non-destructive test, as the load level remains within the elastic zone of the reinforcing bar.

 

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Image credit: Central Kowloon Route – Highways Department

New Pattullo Bridge, Canada

发表于 通过 Kansuda Visesthanakorn
 

New Pattullo Bridge, Canada

 
 

Dextra has proudly contributed to the construction of the new Pattullo Bridge in Canada, a vital infrastructure project that will enhance connectivity between Surrey and New Westminster. As part of this ambitious endeavor, Dextra supplied 100,000 巴特克 couplers, ensuring robust and reliable rebar connections from the bridge’s foundations to its towering pylons.

 

这 巴特克 couplers, known for their high performance and ease of installation, were integral in providing the necessary strength and durability required for this long-term infrastructure. Dextra’s involvement in the Pattullo Bridge project underscores the company’s commitment to delivering innovative solutions that support large-scale construction efforts worldwide. As the new bridge takes shape, it stands as a testament to the importance of reliable engineering components in building the infrastructure of tomorrow.

 

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San Shek Wan Sewage Treatment Works, Hong Kong

发表于 通过 Kansuda Visesthanakorn
 

San Shek Wan Sewage Treatment Works, Hong Kong

 
 

The San Shek Wan Sewage Treatment Works (STW) project in Hong Kong marks a significant step towards addressing the sewage disposal needs of the South Lantau region. As the population of South Lantau is projected to grow, with an ultimate population reaching approximately 12,600 by 2039, the sewage flow is anticipated to increase to 5,800 m³/day. To accommodate this, a comprehensive sewerage system is being constructed, which includes a trunk sewerage system for Pui O area, a secondary STW at San Shek Wan, and a village sewerage system for Lo Uk.

A critical component of this ambitious infrastructure project is the use of advanced materials and technologies to ensure its successful and sustainable completion. Dextra, a global leader in engineered construction products, has played a pivotal role by supplying Glass Fibre Reinforced Polymer (GFRP) soil nails for the excavation and lateral support (ELS) works.

The Role of GFRP Soil Nails in ELS Works

The excavation and lateral support works are essential to the project’s foundation and stability. The challenging geotechnical conditions in Hong Kong, characterized by complex soil and rock formations, necessitate the use of robust and reliable reinforcement solutions. GFRP soil nails, provided by Dextra, are ideal for such conditions due to their high tensile strength, corrosion resistance, and lightweight nature.

GFRP soil nails are used to stabilize slopes and excavations, preventing landslides and soil erosion. Their corrosion resistance is particularly beneficial in environments exposed to moisture and chemicals, such as sewage treatment works. This ensures a longer lifespan and reduced maintenance costs compared to traditional steel reinforcement.

Benefits of Dextra’s GFRP Solutions

  1. Corrosion Resistance: Unlike steel, GFRP does not corrode when exposed to harsh environmental conditions. This makes it an excellent choice for the wet and chemically aggressive conditions present in sewage treatment works.
  2. High Strength-to-Weight Ratio: GFRP offers a high tensile strength comparable to steel but at a fraction of the weight. This ease of handling and installation translates to time and labor savings.
  3. Durability: The longevity of GFRP soil nails ensures the structural integrity of the excavation and lateral support systems over the extended operational life of the sewage treatment works.
  4. 可持续发展: By using GFRP, the project reduces its reliance on steel, thereby contributing to more sustainable construction practices.

Impact on the San Shek Wan STW Project

Dextra’s involvement and the implementation of GFRP soil nails have significantly enhanced the efficiency and sustainability of the San Shek Wan STW project. The advanced materials have ensured that the excavation and lateral support works are not only robust and reliable but also cost-effective over the long term.

Upon completion, the sewage from South Lantau will be conveyed to the newly constructed STW for proper treatment. The treated effluent will then be safely discharged into the sea about 1.4 km off the South Lantau coast, ensuring minimal environmental impact. This project represents a crucial infrastructure upgrade that will support the region’s growth and development while maintaining high environmental and operational standards.

 

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Cairo Monorail Bowstring Bridge, Egypt

发表于 通过 Kansuda Visesthanakorn
 

Cairo Monorail Bowstring Bridge, Egypt

 
 

The Cairo Monorail Bowstring Bridge project, a pivotal part of Egypt’s expanding urban infrastructure, has significantly benefited from the expertise and quality products supplied by Dextra. Known for their innovative engineering solutions, Dextra provided critical materials to support the construction of this state-of-the-art transportation link.

In particular, Dextra supplied tension rods in two distinct specifications for the project:

  1. M78/OD75 in Grade CS520 – A total of 60 sets were delivered.
  2. M83/OD80 in Grade CS520 – An additional 8 sets were provided.

These tension rods were specifically used as hangers for the bowstring bridge, ensuring a high level of strength and durability, which is crucial for the safety and longevity of the bridge, to maintain structural integrity and withstand the stresses of daily monorail operations.

Dextra’s tension rods, known for their high tensile strength and resistance to environmental factors while providing architectural pleasure, played a critical role in meeting these demands. This involvement underscores the importance of reliable and advanced engineering solutions in modern infrastructure projects, highlighting Dextra’s commitment to excellence and innovation in the field of civil engineering.

 

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A66 Salzbachtal Bridge, Germany

发表于 通过 Kansuda Visesthanakorn
 

A66 Salzbachtal Bridge, Germany

 
 

The A66 Salzbachtal Bridge, located in Wiesbaden, Hesse, is a 304-meter-long, four-lane motorway bridge on the A66. Originally constructed in the mid-20th century, the bridge has been subject to wear and tear due to increasing traffic loads and aging infrastructure.

Foundation piles are fundamental to the stability and longevity of bridge structures. Ensuring their integrity is crucial to preventing potential structural failures. 右旋糖苷 played a pivotal role by supplying approximately 10,000 linear meters of 索尼泰克 CSL (Cross Sonic Logging) tubes.

Sonic tubes are essential components in the CSL testing method, which is widely regarded as one of the most reliable techniques for assessing deep foundation integrity. 索尼泰克, designed for easy installation within the reinforcement cage, facilitates accurate cross-hole sonic logging, allowing engineers to precisely detect and locate defects within the piles.

 

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(Image credit: PORR Deutschland, Wilhelm Schütz)

Cross Island Line (CRL) MRT, Singapore

发表于 通过 Kansuda Visesthanakorn
 

Cross Island Line (CRL) MRT, Singapore

 
 

右旋糖苷 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, 巴特克 couplers and 有头酒吧 for several crucial packages. 右旋糖苷 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 右旋糖苷 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.

右旋糖苷‘s expertise and reliable supply of GFRP soft-eyes, 巴特克 couplers and 有头条 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, 右旋糖苷 remains a key partner, supporting the construction of this monumental MRT line that will eventually enhance the daily commute for millions of Singaporeans.

 

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Reconstruction of Tai Po Kau Tide Gauge Station, Hong Kong

发表于 通过 Kansuda Visesthanakorn
 

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 ferry pier foundation, 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 ferry 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.

 

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林查班

发表于 通过 Sir Gwi

林查班

林查班港位于泰国湾，是泰国最大、最繁忙的港口，仅次于曼谷港，也是东南亚第四繁忙的港口。它位于春武里府试验区，距曼谷和 Dextra 主要生产设施仅几个小时车程。

Dextra 与承包商 Italian-Thai 合作，负责林查班新码头后面钢结构的工程和供应。

Dextra 设计并供应了 700 级的船用拉杆系统，这是我们系列中的最高等级。

与 355/510 和 500/660 牌号相比，更高牌号的性能/钢材比率更高，允许选择更小直径的棒材，最终节省钢材并促进物流和安装工作。

制作长筋的杆被锚固在混凝土桩中，并用螺丝扣和耦合器拼接起来。

已为 Laem Chabang 扩建项目供应了总计 206 吨的船用横拉杆。

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穆巴拉克·卡比尔

发表于 通过 Sir Gwi

穆巴拉克·卡比尔

穆巴拉克卡比尔是一个大型海港，位于科威特东部的布比扬岛，面向波斯湾。

2011 年至 2012 年间，Dextra 与该项目的承包商现代建设公司 (Hyundai E&C) 一起参与了第一阶段建设的第二阶段。

对于这个大型项目，Dextra 提供了船用拉杆来锚定卸货设施的码头。

所提供的系统利用了 Dextra 大直径 M134 拉杆，通过球笼（在所有方向上具有 ± 10° 旋转能力）和紧固螺母（在所有方向上具有 ±5° 旋转能力）锚定到组合墙中。

为了适应长筋，提供调节长度并在安装过程中提供额外的灵活性，还根据需要添加了螺丝扣和铰链耦合器（± 90° 垂直调节）。

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马尼拉国际集装箱码头 (MICT) – 泊位 7

发表于 通过 Sir Gwi

马尼拉国际集装箱码头 (MICT) – 泊位 7

1988年，国际集装箱码头服务公司（ICTSI）获得马尼拉国际集装箱码头（MICT）25+25年的经营权，该码头是马尼拉港的三个码头之一。

自此，MICT年吞吐量增加了五倍，成为菲律宾最大、最现代化的集装箱码头。

现在，凭借其有保证的效率和现代化的运营和管理系统，它被认为可与世界上最好的码头相媲美。

MICT 7号泊位是现有6号泊位的扩建项目，将有助于缓解码头外集装箱堆场的拥堵。

Dextra 参与了该项目，提供了 110 套 700 级、杆直径 85mm 的船用拉杆，作为锚具，将管状钢桩顶部浇注的主混凝土墙绑回与起重机轨道梁连接的板桩锚墙。

Dextra 提供 3 种钢种的船用拉杆解决方案，屈服应力高达 700Mpa，螺纹直径为 22，可紧密匹配性能要求并经济地使用材料。

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