CONSTRUCTION
ceiling, and following survey, it was identified that the other MEP services such as ductwork could not be co- ordinated without re-configuring and providing new containment.
Mechanical heat recovery solution Where existing systems/plant were utilised within the refurbishment aspect of the works, suitability for extension and review of remaining useful life period was assessed. For example, it was identified that the flow rate provision of the existing ventilation would not comply with HTM 03-01 requirements for the entire area. Due to the fast-track nature of the works, we adopted a mechanical heat recovery unit solution for several rooms, where the air change rates could not be achieved from the existing AHU provision. This required a derogation to the HTM due to the unit being sited in an occupied space. However, due to the speed of the scheme, and following a risk review, it was agreed that this was the most efficient and cost-effective solution. Close co-ordination with the Trust Estates teams was required for connections into the existing site-wide infrastructure (power, water, medical gases, IT) for each area of work. New localised plant provision was provided for the modular buildings where sufficient capacity was unavailable from existing infrastructure. The new modular units all required separate sub-main feeds with localised distribution boards for the small power and mechanical plant requirements. The electrical distribution strategy meant that for each modular unit an existing sub-panel board needed to be identified in order to provide appropriate LV connection points from existing electrical switchrooms. This meant co- ordinating sub-main routes back through the live hospital corridors to the modular units, which, in some instances, were over 75 metres away. Work was completed while the corridors remained ‘live’, with temporary barriers in place, ensuring that at all times they were accessible for patient beds and staff movement. Where possible, existing containment was identified and used to aid programme and cost efficiency. The integrated
The new modular Emergency Department Assessment Unit at Walsall Manor Hospital.
the new wards, pipework pressure testing at 10 bar was completed during ‘out of hours’ periods for patient and staff safety. Areas were manned and remained isolated whilst the pressure tests were being undertaken.
A rendered artist’s impression of the new Majors Unit at Walsall Manor Hospital.
assessment hub utilised the existing LV supplies, but new local distribution boards (essential/non-essential) were installed, which also fed the waiting cabin and cabin 111.
New oxygen and vacuum provision The existing CMU unit did not have medical gas provision, and new O2
/VAC
was required for the Integrated Assessment Hub, as well as the modular ward units. This meant that medical gas break-ins were required to serve the new areas, with the installation of localised AVSUs. The difficulty with this was that there were no local valves allowing isolations for local break-ins, meaning that line valves were required further back within the hospital, and a shutdown of gases to an existing area was required for installation of the valves, which necessitated close liaison with the ward managers and FM team. As the pipework was running through live areas to serve
For speed of installation, the nurse call system installed to the modular units was a wireless system, which, as well as featuring local alarm activation, also reported back to the nearest nurse staff base in the A&E department. Staff attack panic button systems were installed in all new areas, which integrate into the existing site-wide systems and security office. All fire alarm provision was reviewed, with local modifications in the IAH areas, and break-ins to existing loops for new provision to the modular units. Due to the temporary nature of the units, Part L2a compliance was not required, and neither Part L2B consequential improvements nor BREEAM were applicable.
COVID protocols
All works were undertaken in line with COVID restrictions, and, due to the fast- track delivery of the works, split shift and extending working patterns were required to accommodate social distancing protocols. Tilbury Douglas has in place long established National Procurement Agreements with our approved key healthcare supply chain and specialists, who are aligned with our healthcare-
An artist’s impression of the new Reception area. 34 Health Estate Journal September 2021
A rendered image of the new Paediatric Assessment Unit.
Page 1 |
Page 2 |
Page 3 |
Page 4 |
Page 5 |
Page 6 |
Page 7 |
Page 8 |
Page 9 |
Page 10 |
Page 11 |
Page 12 |
Page 13 |
Page 14 |
Page 15 |
Page 16 |
Page 17 |
Page 18 |
Page 19 |
Page 20 |
Page 21 |
Page 22 |
Page 23 |
Page 24 |
Page 25 |
Page 26 |
Page 27 |
Page 28 |
Page 29 |
Page 30 |
Page 31 |
Page 32 |
Page 33 |
Page 34 |
Page 35 |
Page 36 |
Page 37 |
Page 38 |
Page 39 |
Page 40 |
Page 41 |
Page 42 |
Page 43 |
Page 44 |
Page 45 |
Page 46 |
Page 47 |
Page 48 |
Page 49 |
Page 50 |
Page 51 |
Page 52 |
Page 53 |
Page 54 |
Page 55 |
Page 56 |
Page 57 |
Page 58 |
Page 59 |
Page 60 |
Page 61 |
Page 62 |
Page 63 |
Page 64 |
Page 65 |
Page 66 |
Page 67 |
Page 68 |
Page 69 |
Page 70 |
Page 71 |
Page 72 |
Page 73 |
Page 74 |
Page 75 |
Page 76 |
Page 77 |
Page 78 |
Page 79 |
Page 80 |
Page 81 |
Page 82 |
Page 83 |
Page 84 |
Page 85 |
Page 86 |
Page 87 |
Page 88
