The Vertform manhole shuttering system is being successfully used on the North Bristol Relief Sewer Project in 2020. The Vertform system offers a big advantage over traditional methods in the construction of manhole chambers.
The system consist of a range of fibre glass panels which can be arranged to form a channel without the need to bench the manhole afterwards. The manhole base is constructed in one continuous concrete pour. The system caters for a range of pipe diameters from 300 mm up to 1800 mm. In addition various panels are provided which can accommodate a range of inlet and outlet pipe angles.
The benefits of this system are:
One single operation: The concrete manhole invert and base are created in one single operation, eliminating the need for granolithic benching and costly sealing materials.
No concrete remedial work required: Using the Vertform manhole invert shutter system allows manhole inverts to be created ‘right first time’ and saves on time wasting remedial work.
Easy to use: The simplicity of this manhole invert system means that no expensive skilled labour is required.
Money saving: The manhole invert shutter components are reused saving on expensive timber
Monolithic structure: Vertform allows the concrete manhole base and manhole invert to be created in a single operation using vibrated concrete. Resulting in a water tight, requiring no granolithic benching and a stable concrete base for the manhole structure.
Perfect profile: The use of the preformed manhole shutter components ensure that all concrete inverts have the correct profile.
Safety practices such as effective emergency procedures and clear site access are good practice and a legal requirement to care for everyone’s safety. Effective safety practices for the public are a further demonstration of your site’s social awareness and responsibility. Workers and visitors should all be made aware of any current hazards on site.
The Hub features examples of construction industry best practice sourced from across the UK and Ireland. It can be used by anyone in the industry including site managers, contractors, suppliers and clients, who are looking to improve their standards of considerate construction.
The Hub is a Considerate Constructors Scheme initiative.
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