Experts in Drilling & Grouting

Welcome to Groundsource Drilling and Contracting Limited.

GDC provides a full ground consolidation service which includes site investigations via rotary boreholes, drilling and grouting of mine workings and mine entries (i.e shafts, adits and bell pits) along with other works such as coring, soil nails and anchoring.

Drilling and grouting typically involves drilling boreholes to allow the bulk filling (grouting) of abandoned mine workings that may cause a threat to the ground stability at the surface, such as subsidence. This most commonly historical coal workings but may include other forms of mineral extraction such as sandstone or ironstone workings.

Our Core Drilling & Grouting Services

GDC offers a range of services including

Consolidation of old mine workings
Consolidation of old mine entries (shafts / adits / bell pits)
Bulk Grouting
Ground Anchoring
Soil Nailing
Gas and Water Monitoring
Pre-drilling for Piling
Site Investigation

Ground Consolidation

The demand for ground consolidation services and remediation is high due in the main to the scarcity of good quality building land. The company offers a UK wide service and operates in specialist areas including consolidation of abandoned mineworkings for coal, ironstone, limestone, sandstone, fireclay and oil shales together with mineshaft stabilisation and capping.

Treatment typically consists of producing a grid pattern of injection holes around the affected area and pumping cement based grout to form a continuous grout curtain. Secondary injection holes within the area allow grout in-filling of any voids with optimum ground consolidation. The company also has the capability to offer a site investigation service to both client and consulting engineers.

How it works.

Drilling and grouting typically involves drilling boreholes to allow the bulk filling (grouting) of abandoned mine workings that may cause a threat to the ground stability at the surface, such as subsidence. This most commonly historical coal workings but may include other forms of mineral extraction such as sandstone or ironstone workings.

At GDC we have large batch mixing plant and ancillary capable of pumping hundreds of tonnes of grout per day, plus smaller batch mixing plant that is more suited to smaller projects or tight working areas. We also have a range of steel shaft platforms suitable for the safe treatment and consolidation of shafts, mine entries and wells.

We have the capabilities to undertake small sites or individual housing plots with a handful of treatment boreholes up to large multiphase construction sites with thousands and thousands of treatment boreholes, which can include multi-seam treatment. All our works are carried out to the desired geotechnical engineering specifications required.

"We were extremely impressed with the professionalism and efficiency with which the works were carried out; particularly with the consideration given to the requirements of other contractors and more importantly to the local residents, whose properties were located on the site periphery."

Director, JKN Renewables Ltd.

Their equipment, staff and response times are exceptional and we have never had an issue arising out of work completed by GDC – Our clients are always pleased with the results and so are we!

Manager, IMS Heat Pumps.

I have no doubt that GDC’s workforce provide a high level of knowledge, particularly of drilling and grouting skills and this is apparent in their works. GDCs approach to health and safety throughout the works was second to none, collaborating with a number of other contractors within a challenging site environment and always prioritizing safety.

Quantity Surveyor, Hochtief (HBJV)

They were all brilliant in challenging circumstances. Given that we were being watched all week and were thrown a few curveballs by the locals, they remained professional and helped to try and keep everyone happy!

Engineer, Lithos Consulting Ltd.

Your efforts contributed greatly to the successful completion of the projects which were completed in a timely manner, as forecast and on a budget.

Engineering Manager, Harron Homes

GDC have proved to be extremely reliable, safe, conscious, innovative and able to adapt to the requirement of a wide range of challenging development sites (residential, commercial and industrial).

Director, Professional Remediation Ltd.