Drilling and Grouting

We offer a range of cement and chemical grouting services which can be applied to a number of situations.

Stabilisation of Existing Structures

This method involves drilling through the full depth of underlying weak strata and consolidation of the material by the injection of a suitable grout to tighten up to the underside of the existing foundation. In another example, loose fill is drilled into and grout is introduced to stabilise the material and increase its breaking capabilities.

Consolidation Grouting of Underground Voids, shallow workings and mine shafts

The technique usually involves the pumping of a weak cement/PFA grout to fill the void. Where necessary, barriers formed by block walls, concrete and/or course aggregate injected into peripheral holes are initially installed to limit the extent of the infill grout to the designated area.

Leak Sealing of Structures

Where water penetration occurs, leakages can be minimised and in many cases, completely sealed by pressure grouting techniques. The method involves drilling usually through the full thickness of the structure and the injection of a cement and/or chemical grout, to establish a skin of consolidated strata around the outside of the structure and also to fill and seal major fractures in the structure itself.