As part of our ongoing work in legacy mining areas, E3P recently completed a significant mine stabilisation project in the Lancashire Coalfield, acting as supervising geotechnical engineers throughout the works.
The project involved close collaboration with the Mining Remediation Authority and a specialist remediation contractor. Works included pressure grouting of abandoned mine workings and shafts, followed by the construction of engineered shaft caps to agreed design standards. Each shaft cap incorporated a pre-formed inspection pit, allowing future access and visual checks of the shaft crown and collar.
Shaft capping is a complex geotechnical task that must be designed and delivered on a site-specific basis. No two projects are the same. Ground conditions, historical records, shaft construction, and proposed end use all influence the capping solution. These works must be managed and supervised by one of our experienced geotechnical specialists to ensure appropriate design, construction quality, and long-term integrity.
This project is a strong example of our capability to manage high-risk ground conditions linked to historic coal mining. Through early involvement and technical oversight, E3P ensured all works were completed to a high standard of safety, quality, and compliance.
We are currently supporting similar mine remediation projects across the UK. If you’re involved in a site where mine legacy may be a concern, or would like to understand more about how we approach these works, please speak to the geo team principals and directors.
Key capabilities demonstrated:
- Mine shaft and shallow working investigation
- Risk assessment and remediation design
- Pressure grouting supervision
- Engineered shaft cap design and inspection pit integration
- Geotechnical validation and sign-off
- Multi-stakeholder coordination (including regulators and contractors)
Excellent work from everyone involved in delivering this successful project.
