Land
Drilling

Our all-terrain window sampling rubber-tracked vehicle allows access across difficult terrain or steep slopes. This includes remote sites and high ground. The rubberised tracks and wide bases minimise disturbance to the underlying ground while having the capacity to carry significant equipment.

The dynamic windowless sampling rig attached to our vehicle will drill to a depth of 6m and will achieve greater depths with the correct geology.

Occasionally, we must access remote locations where standard window sample rigs would fail. In such cases, we employ our handheld window sample system. This system utilises handheld hydraulic breakers to drive conventional or window-type barrels into the ground. Hydraulic rams are then employed to extract the barrel, facilitating sample recovery at shallow depths.

Achievable drilling depths for this type of method vary depending on the geology but it is used for overburden sampling of unconsolidated material, usually to depths of 2 to 3m. If required, these can be installed for shallow gas and groundwater monitoring.

We use rotary rigs for sites that require deep drilling (>30mbgl), such as mining investigations or where there is a requirement for cores.

Drilling can be open hole for speed, to deep strata or cored, providing solid samples to allow for the assessment of bedrock for geotechnical properties. The drilling can be air or water flushed, depending upon the type of investigation and the water source.

To ensure that we achieve full health and safety compliance, all locations will be subject to an initial CAT and Genny survey as standard prior to drilling. In addition, a 1.2m hand dug pit will be excavated to establish service clearance.

We have the capability to undertake concrete coring using a diamond bit, whether from the windowless sampling, the standalone bolt down concrete corer or using our handheld coring unit. Our standalone bolt down concrete corer is an electric tower rig that can be vacuum attached or bolted to surfaces, including floors, walls or even ceilings.

This rig will remove cores up to 250mm in diameter. Drilling depths for this machine vary up to 1.5m, depending on the core size required and the matrix of the material being cored. Our handheld coring unit has the versatility to be used in tight spaces, removing cores up to 100mm in diameter.

Designed for accessing internal sites and removing any issues with fumes, we simply plug the unit into the mains through a 110-volt transformer. This machine is effective for quick, shallow, unconsolidated ground investigations, where access through standard doors and fumes could create be problematic.

Drilling depths for this machine vary depending on geology but it is used for overburden sampling of unconsolidated material to depths of 6m. With the correct geology, it has the capacity to achieve greater depths.

Cable percussive drilling offers a great deal of flexibility: it can be used for a stand-alone piece of work or to compliment other drilling techniques that we would be carrying out concurrently on the same site. Disturbed and undisturbed samples can be obtained and logged using this technique.

We have the capability to drill in 150mm and 200mm diameter holes, achieving depths of over 30m.

Dynamic windowless sampling rigs are a useful tool for quick, shallow, unconsolidated ground investigations. Operating on small track bases, these rigs can generally access any site. The rigs are diesel-powered, although we have the capability to allow for an electrical-powered rig.

Drilling depths for this machine vary depending on geology but it is used for overburden sampling of unconsolidated material to depths of 6m. With the correct geology, it can achieve greater depths.

We have extensive experience with excavating pits to expose existing foundations, using appropriate handheld tools. Nominal depths are 1.2mbgl for handheld excavations with a wider hole to allow adequate viewing of the foundations.

All pits are backfilled and reinstated with either concrete or cold tarmacadam, depending upon the original surface.