InfraGrid 30-30: Biaxial Geogrid Application in Byford Rail Extension Project

Case Studies

// Case Studies • InfraGrid 30-30

InfraGrid 30-30: Biaxial Geogrid Application in Byford Rail Extension Project

The Project

The Byford Rail Extension Project, a significant infrastructure upgrade in the realm of urban transit, sought to revamp the existing Armadale Station into an elevated rail hub while eliminating three busy level crossings. This ambitious project was designed to improve safety, reduce traffic congestion, and enhance the overall efficiency of the public transport network. The elevation of the rail not only promised a streamlined transit experience for commuters but also aimed to create new urban spaces beneath the rail line, thereby fostering community engagement and development. Central to the project's success was the construction phase, which required heavy lifting and the movement of materials. To facilitate these activities, robust crane pads capable of withstanding the stresses imposed by heavy machinery were essential. This infrastructure would have to support the considerable loads exerted by cranes while minimizing ground disturbance and ensuring the safety and stability of the operation.

Challenges

The challenge presented by the Byford Rail Extension Project was twofold. Firstly, the existing ground conditions posed a risk for heavy machinery operations. Soft soils and the potential for differential settlement could lead to operational hazards and costly delays. The crane pads needed to be exceptionally stable to allow for safe crane operation throughout the construction process. Secondly, with the environmental impact and cost-effectiveness being of paramount concern, the solution had to be both sustainable and economically viable. Moreover, the construction timeline was tight, necessitating a solution that could be quickly implemented without compromising on quality or safety. Traditional methods of ground stabilization such as deep foundations or extensive soil replacement would be too time-consuming and not cost-effective, driving the need for an innovative approach.

// Our Solution

The adoption of InfraGrid 30-30 biaxial geogrids presented a highly effective solution to these challenges. InfraGrid 30-30 is renowned for its high tensile strength and its ability to distribute loads over a wider area, thus significantly reducing the risk of ground failure under the stress of heavy cranes. When deployed beneath crane pads, InfraGrid 30-30 acts as a reinforcing layer, creating a stable and uniform platform for crane operations. The installation of InfraGrid 30-30 was swift and straightforward, seamlessly integrating with the project's accelerated schedule. The geogrid's flexibility meant it conformed well to the existing contours of the site, reducing the need for extensive ground leveling and preparation. By enhancing the load-bearing capacity of the subgrade, InfraGrid 30-30 minimized the depth of fill required, leading to substantial cost savings and a reduction in the project's carbon footprint. InfraGrid 30-30's performance during the Byford Rail Extension Project exemplified its ability to support heavy construction activities even in challenging ground conditions. The successful implementation of these geogrids under crane pads ensured the project's progress remained on schedule and within budget, all while adhering to stringent safety standards. The Byford Rail Extension Project stands as a testament to the efficacy of InfraGrid 30-30 in providing a solid foundation for critical infrastructure development.