Speaker
Description
The LBNL ALS-U project is delivering major facility upgrades to install a new Accumulator Ring (AR) and Storage Ring (SR), requiring cable plant infrastructure to support approximately 10,000 cables in a highly congested and space-constrained environment. This work demands strong coordination between design, AHJ compliance, and field execution to ensure constructability and schedule performance.
This presentation will summarize cable plant design and installation progress, key challenges, lessons learned, and the execution strategy moving forward. It will highlight early AR challenges including long AHJ approval timelines, labor-intensive design development, evolving subsystem inputs, and limited field condition integration that impacted installation readiness.
The presentation will also cover the revised SR approach, including engagement of an experienced A&E firm, transition to Revit-based design for improved BIM coordination, finalized subsystem cable requirements, and incorporation of 30% spare tray capacity. It will further discuss internal BIM modeling efforts to support clash detection and validate subcontractor deliverables.
Finally, the presentation will review installation progress, the use of prototype installation to improve efficiency, and the addition of subcontracted installation resources to accelerate execution and strengthen readiness for SR delivery.