Solid Foundations: Upgrading Highfield Road Bridge
Highfield Road Bridge is located in Oakley, three miles north of Bedford, and spans a section of the Midland Main Line between Bedford and Wellingborough. It required ongoing maintenance to preserve its historic foundations.
We were invited by our client to conduct an Early Contractor Involvement (ECI) assessment before proceeding with our quotation. This initial phase allowed us to collaborate closely with the client, gaining a comprehensive understanding of the project requirements and identifying potential challenges early on. By engaging in this proactive approach, we were able to provide valuable insights and design.
Based on our assessment, we designed the use of 220 mm bearing piles. This solution was tailored to meet the specific needs of the project, ensuring both stability and efficiency. Our design highlighted the benefits of micro piling, including its suitability for restricted access sites and its ability to provide robust support in challenging ground conditions.
A 60-year design life was specified for the wing wall. To achieve this, we utilised structural hollow sections with a total length of 6-meters supplied in 1-meter sections with collar and thread joints formed part of the reinforcement.
Previous strengthening efforts had been carried out to enhance the bridge's stability.
Our own powerful hydraulic diamond drilling system designed for heavy-duty applications
Precision Engineering with heavy-duty performance, at the core of our operations is a powerful hydraulic diamond drilling system, purpose-built for the most demanding structural applications. To support this project, we began by diamond drilling through the bridge structure and its foundations. This high-precision method allowed us to create clean, accurate openings for micro pile installation without compromising the integrity of the existing structure. Once the openings were prepared, we temporarily drilled and cased the piles to design depths. This ensured each pile was securely anchored into the bedrock, delivering the critical support needed to reinforce and stabilise the bridge.
Micro Piling
The use of micro piles in this project not only addressed the immediate need for foundation reinforcement but also enhanced the overall stability and longevity of the bridge. This method built upon previous reinforcement measures, such as the installation of through tie bars, ensuring a comprehensive approach to maintaining the bridge's structural integrity.
Pile reinforcement
Circular Hollow Sections
CHS was grade S355(fy = 355 N/mm2) in accordance with BS EN 10025. Profiles were 168.3 x 10 for 5 piles and 4 piles 139.7 x 8. All CHS were 6m long made up of 1.0 m sections.
What our client had to say
Testimonial from Amco
"We are extremely impressed with Piletec's exceptional workmanship and their unwavering commitment to the Highfield Road rail bridge project. Their team's professionalism and clear communication throughout the project ensured that every phase was executed smoothly and efficiently. Piletec's dedication to the scheme was evident in their meticulous attention to detail and their proactive approach to problem-solving. Their expertise and collaborative spirit made a significant difference in the success of this project. We highly recommend Piletec for their outstanding performance and dedication to excellence."
Piletec Geotechnical is renowned for its innovative approach and unwavering commitment to excellence, consistently delivering high-quality geotechnical solutions that exceed client expectations.
Headquarters
This project not only preserved a vital piece of infrastructure but also showcased the importance of engineering excellence and innovative solutions in maintaining and improving our transportation networks. The success of the Highfield Road rail bridge project is a clear reflection of Piletec's dedication to delivering high-quality results and their ability to overcome challenges with professionalism and expertise.
Piletec Geotechnical Ltd,Unit 3 Bramley Way S668QB