OR/19/019 Introduction

Entwisle, David, C. 2019. Engineering geology and geotechnical summary of central Glasgow in the vicinity of the UK Geoenergy Observatories field sites. British geological Survey. (OR/19/019).

The UKGEOS Glasgow project will provide research infrastructure to investigate the sustainable exploitation of low enthalpy (low temperature) geothermal heat from flooded mine workings. Ground investigations are planned to characterise and monitor the top approximately 200 metres of the subsurface. Interconnected flow systems suitable for large-scale heat recovery may be present in areas of collapsed mines and mine waste where coal seams of more than 1 m thick have been totally extracted, and/or in areas of stoop and room (pillar and stall) workings that are open and flooded.

This report provides the engineering geology and geotechnical characteristics of the units that are modelled to be intercepted by the UKGEOS Glasgow project boreholes. The units included are those identified in the borehole prognoses in five locations sited in the Clyde Gateway development area near the River Clyde, with the additional superficial units that have been modelled nearby. The lowest unit that will be intercepted is the Scottish Lower Coal Measures Formation.