Pattullo Bridge Replacement, Canada

โพสต์เมื่อ กันยายน 4, 2024พฤศจิกายน 8, 2024 โดย Kansuda Visesthanakorn

Pattullo Bridge Replacement, Canada

Dextra has proudly contributed to the construction of the Pattullo Bridge Replacement project 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 บาร์เทค couplers, ensuring robust and reliable rebar connections from the bridge’s foundations to its towering pylons.

ระบบ บาร์เทค 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

โพสต์เมื่อ สิงหาคม 2, 2024สิงหาคม 2, 2024 โดย 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

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.
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.
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.
ความยั่งยืน: 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

โพสต์เมื่อ กรกฎาคม 5, 2024กรกฎาคม 5, 2024 โดย 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 แท่งปรับความตึง in two distinct specifications for the project:

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

These แท่งปรับความตึง 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 แท่งปรับความตึง, 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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San’ao Nuclear Power Plant 1&2, China

โพสต์เมื่อ มิถุนายน 12, 2024มิถุนายน 12, 2024 โดย Kansuda Visesthanakorn

San’ao Nuclear Power Plant 1&2, China

เด็กซ์ตร้า has successfully supplied 340,000 กริปเทค couplers for the anti-aircraft impact shell construction of the San’ao Nuclear Power Plant units 1 and 2, featuring the advanced HPR1000 Hualong reactors.

กริปเทค, recognized as the only 100% proofed splicing system, has gained the trust of over ten nuclear reactors globally, cementing its reputation for reliability and safety in high-stakes environments. The system’s stringent quality assurance processes ensure that each coupler meets the demanding standards required for nuclear applications, providing unparalleled performance and durability.

One of the standout features of กริปเทค is its high-productivity bar end preparation equipment. This state-of-the-art machinery boasts an impressive processing speed of 30 to 45 seconds per bar end, significantly enhancing construction efficiency. Additionally, the equipment is designed for operation by a single operator, optimizing workforce utilization.

Moreover, เด็กซ์ตร้า is the first manufacturer of products for civil works construction whose quality management system is ISO 19443 certified for nuclear safety. This certification underscores เด็กซ์ตร้า‘s commitment to the highest standards of safety and quality in the nuclear industry, reflecting the company’s dedication to excellence and reliability.

The San’ao Nuclear Power Plant project is a key component of China’s strategic initiative to expand its nuclear power capacity, which is vital for meeting the country’s growing energy needs while reducing carbon emissions. By supplying กริปเทค couplers, เด็กซ์ตร้า is playing a crucial role in ensuring the safety and efficiency of this project.

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A66 Salzbachtal Bridge, Germany

โพสต์เมื่อ มิถุนายน 12, 2024มิถุนายน 12, 2024 โดย 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. เด็กซ์ตร้า played a pivotal role by supplying approximately 10,000 linear meters of โซนิเทค 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. โซนิเทค, 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

โพสต์เมื่อ มิถุนายน 12, 2024กรกฎาคม 19, 2024 โดย Kansuda Visesthanakorn

Cross Island Line (CRL) MRT, Singapore

เด็กซ์ตร้า 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, บาร์เทค couplers and บาร์หัว for several crucial packages. เด็กซ์ตร้า 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 เด็กซ์ตร้า 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.

เด็กซ์ตร้า‘s expertise and reliable supply of GFRP soft-eyes, บาร์เทค 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, เด็กซ์ตร้า 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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Foundation for Public Housing Development at Pik Wan Road, Hong Kong

โพสต์เมื่อ พฤษภาคม 9, 2024พฤษภาคม 9, 2024 โดย Kansuda Visesthanakorn

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 เด็กซ์ตร้า, 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.

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Jal Jeevan Mission Water Reservoirs, India

โพสต์เมื่อ เมษายน 2, 2024เมษายน 2, 2024 โดย Kansuda Visesthanakorn

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.

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

โพสต์เมื่อ เมษายน 2, 2024ตุลาคม 18, 2024 โดย Kansuda Visesthanakorn

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

ในภูมิทัศน์ชายฝั่งแบบไดนามิกของ Tai Po Kau เขตดินแดนใหม่ ฮ่องกง โครงการโครงสร้างพื้นฐานต้องการโซลูชันที่แข็งแกร่งและยืดหยุ่น ความพยายามประการหนึ่งคือการสร้างโครงการสถานีวัดระดับน้ำ Tai Po Kau ขึ้นใหม่ โดยต้องใช้วัสดุที่เป็นนวัตกรรมใหม่เพื่อทนทานต่อความท้าทายเฉพาะที่เกิดจากสภาพแวดล้อม เดกซ์ทราก้าวเข้ามาให้ระยะทางประมาณ 1,000 เมตร Glass Fibre Reinforced Polymer (GFRP) rebar for the slab of the Tai Po Railway Pierจัดแสดงประสิทธิภาพของวัสดุคอมโพสิตขั้นสูงในการก่อสร้างทางทะเล

โครงการสถานีวัดระดับน้ำ Tai Po Kau มีวัตถุประสงค์เพื่อฟื้นฟูโครงสร้างพื้นฐานที่มีอยู่ เพิ่มความยืดหยุ่นต่อแรงขึ้นน้ำลง การกัดกร่อน และความเสื่อมโทรมของสิ่งแวดล้อม ด้วยตระหนักถึงข้อจำกัดของการเสริมเหล็กแบบดั้งเดิมในสภาพแวดล้อมทางทะเล โครงการจึงมองหาทางเลือกอื่นที่สามารถให้ความทนทานและอายุการใช้งานที่ยาวนานกว่า เดกซ์ทร้า เหล็กเส้น GFRP กลายเป็นวิธีแก้ปัญหาในอุดมคติ โดยมีความต้านทานต่อการกัดกร่อน สนิม และการย่อยสลายทางเคมีที่ยอดเยี่ยมซึ่งมักเกี่ยวข้องกับการสัมผัสกับน้ำเค็ม

เหล็กเส้น GFRPประกอบด้วยใยแก้วที่มีความแข็งแรงสูงที่ฝังอยู่ในเมทริกซ์โพลีเมอร์ ให้คุณสมบัติทางกลเทียบเท่ากับเหล็กแต่มีประโยชน์เพิ่มเติม โดยเฉพาะอย่างยิ่ง เหล็กเส้น GFRP แสดงค่าการนำความร้อนที่ต่ำกว่าอย่างมีนัยสำคัญ ลดความเสี่ยงของการเชื่อมต่อความร้อน และเพิ่มความสมบูรณ์ของโครงสร้างในการเปลี่ยนแปลงของอุณหภูมิที่รุนแรง นอกจากนี้ คุณสมบัติที่ไม่ใช่แม่เหล็กยังกำจัดการรบกวนทางแม่เหล็กไฟฟ้า ทำให้เหมาะสำหรับการใช้งานที่มีความละเอียดอ่อน เช่น สถานีวัดระดับน้ำ

การประยุกต์ใช้ของ เหล็กเส้น GFRP 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.

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Nestlé LEO Factory, Thailand

โพสต์เมื่อ เมษายน 2, 2024เมษายน 2, 2024 โดย Kansuda Visesthanakorn

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.

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