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Contractors World  - UK & Ireland
2012 Vol 2 No 9
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Social Housing Shows the Way to Go Green

A small cul-de-sac in Shropshire consisting of 16 bungalows has had Ground Source Heat Pumps installed throughout. The brief called for the bungalows to have 2 bore holes a piece in a quiet cul-de-sac in Shropshire. There had to be minimal disruption to the residents.

Multiple installations were needed to be run from single drill chambers. This involved a complex drill plan incorporating 32 bores needed to be designed, making sure not to hit any existing utility lines In order to save space on the small estate, one drill chamber serves two properties simultaneously.

The main challenge with this project for the contractors, Eco Friendly Installations, was the positioning of the bores. A complex drill plan of 32 bores was designed, due to the boundary restrictions it was imperative that the bores were placed in the right areas and at the right angles to ensure enough metres were in the ground.

by drilling radial bore holes up to 50 m in length at a casing diameter off 110 mm and a rod diameter of 92 mm   The specialist contractors design and install ground source heat pumps by drilling radial bore holes up to 50 m in length at a casing diameter off 110 mm and a rod diameter of 92 mm.

For Shropshire social housing complex, installing sustainable, environmentally friendly ground heat supply system was complicated because of lack of direct access and restricted space in which to work
Schematic showing typical installation to maximise efficiency of system.
© Tracto Technik.

Typically they drill 3 bore holes giving 150 m of underground pipe work, this can increase or decrease depending on the property.

Gareth Davies, Production Manager at Eco Friendly Installations said "We have drilled in many challenging locations and ground conditions over the past few years, our toughest challenge was this housing association project drilling 19 homes each having 2 bore holes and a community center for Shropshire Housing under there "Affordable warmth Scheme".

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