One of the consequences of shallow mineworkings which can inhibit new development or threaten existing structures is surface instability. This can arise from failures within old abandoned mines which are then manifested as surface subsidence. We have particular specialism in the assessment of old mineworkings to determine risks of subsidence and where such risks exist, we can advise on appropriate measures to secure the stability of the land. These measures may include infilling by drilling and grouting or, indeed, the removal of the mineworkings in bulk earthworks.
Our cores services in this aspect of our work include:
Investigations
• Research and interpretation of old abandoned mine records
• Assessments and correlation of geology and worked seams
• Management of Site Investigations including drilling and geophysical operations
• Determination of areas of potential instability
• Assessments of the nature of development constraints
• Mineshaft detection
Stabilisation
• Design and management of drilling and grouting operations
• Design and management of opencast reclamation schemes
• Advice on structural design to attenuate subsidence effects
• Mineshaft capping and infilling