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Stuart Carson – Great Britain

07850 234136     scarson@fpmccann.co.uk

Dave Derbyshire – Great Britain

07703 279449     dderbyshire@fpmccann.co.uk

Gary Donnelly – Scotland

07989 348045     gdonnelly@fpmccann.co.uk

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Precast bespoke pit solutions now provide a real alternative to in-situ built pits.

Most airfield projects require the construction of large concrete pits for the main electrical and communication installations. Traditionally, due to their size, these have been constructed in-situ. A modular concrete design has been developed which is factory produced and then assembled on site.

This whole approach has produced a solution which has made a significant and sustainable contribution towards reducing the impact of construction works in the airport environment, including time spent on-site, runway possessions and noise. The end product is of a consistently high quality and has the added value of being easier to maintain and alter in the future.

Why Choose An Off-Site Solution?

Traditionally, pits have been created using in-situ construction methods. This process has proved to be labour intensive, time  consuming, noisy and wasteful, whilst potentially posing a number of safety hazards, particularly on projects associated with deep excavations.

Off-site construction reduces a number of safety hazards and also reduces the man hours required on-site by 95 per cent from 300 down to 15 hours per pit.
This reduction impacts upon the amount of traffic deliveries to site, therefore reducing site storage and site waste. It also eliminates possible delays during construction, thereby improving programme reliability.

Flexible Design:

The design of the pits incorporates specially formed plastic sleeves which contain built-in stoppers.

The collars are placed in a cluster arrangement avoiding the need to know exactly where future cable runs are. Once a cable location is known, the built-in stopper within the plastic sleeve can be easily removed.

The added benefit of the built-in stopper is that during installation and throughout its life, water ingress through the ducts is prevented.

There are many other benefits, some of which are listed below:

• 95 per cent reduction in site man-hours for pit construction
• 85 percent reduction in on-site construction programme
• 55 per cent reduction in lorry movements for deliveries
• Virtual elimination of on-site waste
• Elimination of need for confined space working
• Significant reduction in site noise
• Provision of a consistently high quality product
• Product designed for future alterations

Where large repetition exists, FP McCann is able to develop a pit solution to suit the specific needs of the client. Typically, these could provide high quality infrastructure for utility companies where large numbers of standard pits are required and where site conditions and constraints require a quick build time.