A system-wide track and fit-out for an extensive section of tunnel
The Crossrail C610 contract involved the central tunnels section of the Crossrail alignment under central London. The tunnel fit-out involved the installation of over 40km of track, along with overhead power supply, and ventilation and drainage systems.
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Services provided
The Challenge
Our client, a design and build contractor, required a team to lead noise and vibration responsibilities that included final detailed design sign-off, testing and commissioning of the tunnel ventilation system, and construction noise and vibration management during track construction and M&E fit-out.
Our Approach
As part of this project, over a two-year period our team of experts:
- Liaised with local authorities on technical matters to ensure the smooth achievement of project commitments.
- Planned and implemented an accelerated programme of testing and commissioning surveys at each of the 18 ventilation shafts along the tunneled section of the route.
- Collaborated with a team to design a compliance methodology that could be used for sites where target noise levels were expected to be significantly below background noise levels at receptors.
- Assisted in assuring the design and specification of additional control measures where required.
- Prepared Section 61 consent applications, dispensations, and variations for a seamless submission process.
- Conducted routine Best Practicable Means audits and attended monitoring.
- Performed vibration risk assessments and monitored the effects on heritage assets to ensure adequate protection.
The Outcome
Our team became highly valued advisors on the Crossrail C610 contract. As a result of our efforts, the client successfully overcame several technically complex challenges.