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Precast Pit Solutions

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FP McCann's precast bespoke pit solutions provides 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 on the airport environment by reducing 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 an off-site solution
 
Traditionally, pits have been created using in-situ construction methods. This process has proved to be labour intensive and time consuming, noisy and wasteful, whilst potentially posing a number of safety hazards, particularly on projects associated with deep excavation. 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.
This reduction impacts upon the amount of traffic deliveries to site therefore reducing site storage and site waste. It also eliminates a number of variables 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:
 
Benefits
 
  • 95 per cent reduction in site man hours for pit construction
  • 85 per cent 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.

 

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Benefits of Precast Concrete Pits
  • 95% reduction in site man hours for pit construction
  • 85% reduction in on-site construction programme
  • 55% 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