Terrain Aeration

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On this project, the existing football pitch, made of heavy clay subsoil, was repurposed as a piling mat for the GSHP array.

To improve long-term drainage, they implemented terrain aeration: a 1m hollow probe injected compressed air to create microfractures, followed by milled seaweed.

As the seaweed degrades, it leaves organic biomass that keeps the fractures open, allowing surface water to percolate deeper. This sustainable technique enhances soil structure and long-term drainage on previously boggy ground.

The process will remain effective throughout construction and continue to benefit the site once the football pitch is reinstated.

This technique has improved drainage for both the project and the school, providing a long-term, sustainable solution for heavy clay ground.

To find out more, click the link below.

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About this entry

Published 23 March 2026
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Categories
Green/renewable energy, Materials management,

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Medium,

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Best practice,

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Jack Endean
Partnerships and Innovations Manager

Entries by this author 1016

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