Survey and thermal testing of soils and cable backfill
for the renewable energy and land development sectors

Site Investigation for Foundations

Soil Environment Services undertake geotechnical site investigations for foundation design for residential developments, wind turbine bases and small commercial or industrial developments. Our surveys have been used for NHBC* warranty purposes and foundation design.  Foundation depth requirements in relation to nearby trees are determined on sites with clay soils. We can undertake  Waste Acceptance Criteria (WAC) testing of soil to go off site during the geotechnical site investigation.

All our site investigations and geotechnical work complies with BS5930, BS1377 and Eurocode 7.

We can work in difficult access areas and leave virtually no disturbance whilst carrying out a site investigation.

Our typical geotechnical survey includes:

  • Boreholes to depth for a log of soil conditions and soil sampling.
  • In-situ testing:
    – SPT, Dynamic Probing or shear vane testing for ground strength
  • Laboratory testing for determination of:
    – Plasticity index to assess soil shrink and swell
    – Soil pH and Sulphates for concrete specification
  • Reporting
    – Borehole logs
    – Drawing of borehole locations and other site features of concern
    – Foundation depth in relation to soil shrink/swell and nearby trees
    – Ground bearing determined using industry software from N values
    – Concrete specification re aggressive ground

Other associated tests we can undertake:

  • Soakaway test to BRE365 specification or a ‘falling-head’ test in the boreholes.
  • Waste Acceptance Criteria (WAC) testing to take material off site to landfill.
  • CBR testing on site for road and car park sub-base specification.

Useful links:

National House Building Council

Soil Environment Services undertake this work across the UK.

*NHBC and structural engineer requirements for an investigation may vary and hence we recommend you consult with appropriate persons before finally instructing us to proceed.

Please contact us to discuss your requirements

Telephone: 01661 844827