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Ulverston, UK – November 14 2024 – H. E. Services (Plant Hire) Ltd is proud to announce its involvement in the critical repair work on a railway viaduct crossing the River Leven in Ulverston, working with Network Rail (Client), Story Contracting (Principal Contractor) and GPS Marine and Civil Services (Marine Works Subcontractor). Our state-of-the-art Komatsu PC210 22-tonne excavator, equipped with the latest Topcon MCMAX LPS system and height restrictor, has been specially chosen to support the complex tasks required for this project.
The viaduct, a key part of the local rail infrastructure, is undergoing essential repairs to two of its piers as well as the existing concrete apron forming critical scour protection to the viaduct piers. To facilitate the intricate work required, our excavator has been fitted with cutting-edge technology to ensure precision and efficiency throughout the project.
Advanced Technology for Enhanced Precision
The Komatsu PC210 utilised in this project is equipped with the Topcon MCMAX LPS system, integrating total station capabilities to provide real-time data and precision during excavation. This advanced system allows the operator to view the design drawings and trench profiles directly on a screen within the cab. The system ensures that the excavator can achieve the exact trench profile required, even when operating underwater. This high level of accuracy is crucial for preparing the bed on which the grout mattresses will be installed.
Unique Operational Environment
The challenging nature of this project is underscored by the fact that our Komatsu PC210 will be operating from a live-aboard vessel (landing craft), moored on the downstream side of the apron. The landing craft is equipped with a ramp, enabling the excavator to track onto the apron at low tide to carry out preparation work. As the tide recedes, the excavator will leave the landing craft and begin the necessary excavation tasks before returning to the vessel at least one hour before the tide's return.
Project Execution
The initial phase of the project involves preparing the apron to ensure a smooth and stable bed for the grout mattresses. The excavator will grade the apron bed using broken concrete, creating an optimal surface for mattress installation. The next phase will involve trench excavation into the existing rock armour. The excavator, equipped with a rock-handling grab, will carefully handle and reposition the large rock armour stones to allow for the trench to be excavated according to the design specifications. Once the mattresses are installed, the previously removed rock armour will be used to fill the trench, ensuring the structure is tied securely to prevent tidal damage.
Commitment to Excellence
H. E. Services is committed to delivering exceptional service and quality, ensuring that every project we are involved in is completed to the highest standards. Our investment in advanced technology and skilled operators ensures that complex tasks, such as those required in the Ulverston Viaduct project, are executed with precision and care.
We are proud to contribute to the maintenance of critical infrastructure and look forward to the successful completion of this project, ensuring the continued safe operation of the railway viaduct for years to come.