Case Study CERN
High-altitude access solutions in the heart of the particle accelerator
The Problem: Unreachable heights in complex spaces
The Large Hadron Collider (LHC) at CERN is situated in a tunnel complex deep beneath the Franco-Swiss border. To perform essential major maintenance on the particle accelerator and its surrounding equipment, technicians must work at significant heights in spaces the size of a cathedral.
The biggest challenge? The floor and strict spatial constraints. Due to the immense complexity of the installations and the irregular floor surface, standard mobile aerial work platforms (AWPs) were out of the question. Additionally, the footprint of the platform's base could not exceed a circle with a 1.5-meter diameter due to limited clearance in various areas.
The existing installation CERN used for this purpose was due for replacement, necessitating a new, technically advanced solution.
Objective: Safety and a 17-meter reach
The primary goal was to create a reliable high-altitude workstation where:
- A working height of over 17 meters could be reached.
- The installation could be moved independently of the floor surface.
- CERN’s strict safety standards were guaranteed.
- A specific, modern replacement was provided for the outdated custom installation.
Action plan: From expertise to design
CERN sought a partner that thrives on complex, custom-made requests. Based on Custers’ previous successful projects and expertise, a close collaboration was launched.
During the design phase, the unique infrastructure of the underground halls was analyzed. Since driving across the floor was not an option, the focus shifted to the ceiling. A concept was developed that combines the stability of an aerial platform with the mobility of a hoist system for displacement.
The solution: The "floating" aerial platform
Custers delivered a unique aerial platform mounted on a movable base. Instead of wheels on the ground, this system utilizes an advanced overhead hoisting system.
Key advantages of this solution:
- Maximum Working Height: Technicians can now work safely and stably at heights exceeding 17 meters.
- Impressive Outreach: At a height of 10 meters, the system achieves a horizontal reach of 12 meters.
- Floor Independence: By suspending the system from the ceiling, complex equipment on the ground no longer poses an obstacle to positioning.
- Efficiency: The platform is easily moved to the desired location via an overhead crane, significantly reducing maintenance downtime.
With this custom solution, Custers contributes directly to keeping the world’s largest scientific experiment operational.